The Witness at Strathdarran

I checked the university student's firearms certificate twice before handing it back, my eyes automatically scanning the tree line behind him for movement that should not have been there. Nothing. Just another University of Edinburgh student with the proper documents, the landowner's deer-stalking permission and a borrowed stalking rifle he barely knew how to hold.

"Remember to stay within the marked boundaries," I told him, tapping the map clipped to my board. "And check in at the police and Forestry and Land Scotland ranger post before you head out tomorrow."

He nodded and hurried back to his car, probably eager to escape my overly thorough inspection. I could hardly blame him. Three years with Police Scotland's rural and wildlife crime unit had turned routine encounters into exercises in hypervigilance. Every face was memorised, every inconsistency noted, every instinct catalogued and filed away.

The radio crackled inside my marked Police Scotland 4x4. Routine check-ins from officers scattered across the district. I responded with my location and status, then returned to my patrol log. Fourteen stalking permits and firearms documents checked, two campsite breaches recorded, one family of tourists redirected away from restricted ground.

Standard Tuesday afternoon work. It kept me busy enough not to think about why I had chosen this particular corner of nowhere. The 4x4's engine ticked as it cooled, the only sound apart from the wind moving through the commercial Scots pine and spruce woodland. I had positioned myself at the access point deliberately, close enough to monitor the popular stalking ground but well away from the abandoned lead-mining workings most people avoided.

The work suited me. Predictable. Contained. No partner to worry about, no backup that might never arrive, no situation in which a split-second decision could destroy everything I thought I knew about myself.

The radio squawked again at 14:14.

"Unit Seven, possible missing walker. Young woman at the ranger post requesting assistance."

I pressed the transmit button. "Unit Seven responding. Estimated arrival ten minutes."

These calls usually ended with someone wandering back from the wrong path an hour later, wearing a sheepish grin and carrying a mobile with a flat battery. Even so, I ran through my mental checklist as I drove towards the post.

Emergency medical kit secured. Handheld GPS receiver charged. Ordnance Survey map packed. Extra water and food rations aboard. Radio functioning.

Issued Taser, PAVA spray and baton. I checked them by reflex, confirming each was secure on my equipment belt.

There were two vehicles in the small car park when I arrived: my supervisor's 4x4 and a blue hatchback with an English registration plate.

Through the post's front window, I saw a young woman pacing beside the duty desk. Her auburn hair was pulled into a ponytail that had worked loose on one side. She rushed outside as I parked, her face flushed and streaked with what looked like dried tears.

"Are you the constable they called? Thank God. My boyfriend's missing and I don't know what to do."

I took my board and emergency rucksack from the vehicle, giving myself a moment to observe her while I organised my gear.

Mid-twenties. Athletic build. Expensive walking boots showing genuine wear. Her hands shook as she pushed the loose hair from her face, and dirt stained the knees of her trousers.

The details painted a picture of someone who had been searching rough ground.

"I'm Police Constable Rowan Mercer," I said, taking out an initial incident form. "What's your name?"

"Catriona Vale. I'm from Bristol." She spoke quickly, the words tumbling over one another. "We came up for a long weekend. Elliot wanted to explore some of the old mining areas he'd read about online."

I wrote down the essentials: her name, the vehicle details and the time of first contact. Standard questions gave frightened people something concrete to focus on while I assessed their credibility.

"When did you last see Elliot?"

"This morning, around ten. Maybe half ten." She gestured vaguely towards the mountains. "We were walking near some old buildings. He said he wanted photographs of the morning light on the ruins. I told him I'd wait at the start of the path, but he never came back."

The timing was plausible, but something about her delivery troubled me. There was too much detail about his motivation and too little about concrete facts, such as their precise location or what he had been wearing.

"What's his full name and description?"

"Elliot Ward. He's twenty-four, about one metre seventy-five, sandy hair. He was wearing a red waterproof jacket and blue jeans, with new walking boots that were probably giving him blisters."

A brief smile crossed her face, the sort people gave when speaking about someone they loved.

"He's not really an outdoorsman, but he was so excited about this trip."

I recorded the clothing and physical description.

"Which path were you on?"

Her answer came too quickly. "The one beyond the old Strathdarran turning. There's a forestry track leading to a car park."

My pen stopped.

Strathdarran. Of course it was Strathdarran.

"Constable, are you all right?"

I looked up and found her watching me with what appeared to be genuine concern.

"Yes. Just making sure I've got the location right."

I finished writing, though my handwriting had deteriorated noticeably.

"That's very remote ground. How familiar are you with the area?"

"Not at all. It's our first time in the Highlands."

She wrapped her arms around herself, as though trying to contain her panic.

"That's why I'm so frightened. Elliot doesn't know these mountains, and he only had a bottle of water and a few cereal bars."

The details remained plausible, but the instincts that had kept me alive through eight years in conventional policing were raising alarms. There was nothing I could isolate, only the sense that her account had been rehearsed, as if she had practised it on the drive over.

"I need to ask this," I said, keeping my voice professional. "Have you had any relationship difficulties recently? Arguments, a separation, anything that might make him leave on his own?"

Her eyes flashed with what looked like genuine anger.

"Elliot wouldn't abandon me here. We drove up together. All his things are still in my car."

She pulled a set of keys from her pocket and gestured towards the hatchback.

"Look for yourself if you don't believe me."

I glanced at the car but did not approach it. Too many old policing habits remained, including the one about never allowing myself to be cornered beside somebody else's vehicle.

"I'm covering every possibility. They're standard questions."

"I understand."

She drew a breath and visibly tried to compose herself.

"But we need to start looking. It'll be dark in a few hours, and the forecast says it'll turn cold tonight."

She was right about the time. Even if we left immediately, we would have perhaps three hours of useful daylight.

And it was Strathdarran.

I had avoided returning there for three years. I told myself it was because the abandoned shafts and unstable workings made the place dangerous, but the truth was simpler and more pathetic.

Strathdarran still gave me nightmares.

"All right," I said, closing my notebook. "I'll collect the search equipment and we'll go to the start of the path. You can show me exactly where you last saw him."

Relief flooded her face.

"Thank you. I was afraid nobody would take this seriously."

I returned to the 4x4 and opened the equipment compartment, running through my inventory. Rope, medical supplies, emergency shelter, extra food and water. LED lantern, backup torch and spare radio batteries. Everything I might need for an ordinary search on the same ground where I had lost my partner and my career.

Catriona hovered nearby while I loaded my rucksack, occasionally glancing towards the hills as if she expected Elliot to walk out of the trees.

"How long have you worked out here?" she asked.

"Three years."

I clipped the radio to my belt and checked the channel.

"I transferred from conventional policing."

"Do you prefer it? Being outdoors instead of dealing with crime?"

I paused. Most people did not ask follow-up questions about a career change when their boyfriend was missing.

"It has its advantages."

She nodded as if she understood completely.

"Elliot always said he wanted a job that took him outdoors more. He works in graphic design and spends all day looking at a computer screen."

Wanted and works. Past and present in the same breath. People mixed tenses when they were badly distressed, or when they were lying.

I made a mental note and finished securing my equipment.

"I'll follow you to the car park," I told her. "Take it slowly on the single-track roads. Mobile coverage becomes unreliable once we leave the main A-road."

"I've already discovered that."

She held up her mobile phone. Its display showed no signal bars.

"That's another reason I'm worried. Even if Elliot wanted to call for help, he couldn't reach anyone."

We walked towards our vehicles. She moved with the confident stride of someone at ease in walking boots, not the tentative steps of a Bristol woman unfamiliar with Highland terrain. Another detail that did not fit, although people could surprise you. Perhaps she had far more outdoor experience than she had suggested.

The 4x4's engine started at once, a small mercy given how much I did not want to make the journey. Routine radio traffic accompanied me as I followed Catriona's blue hatchback out of the car park and on to the road into the hills.

Twenty minutes to the Strathdarran turning. Another ten along narrow roads and the rough forestry track to the abandoned lead-mining district.

Three years since I had returned. Three years since I had lost Duncan Reid to something I could neither explain nor forget.

The nightmares had finally begun to fade, replaced by the numbing routine of checking stalking permissions, investigating suspected salmon poaching and monitoring wildlife crime. Safe work. Predictable work. Work where the greatest danger was likely to be an adder or an injured red deer stag.

Catriona's brake lights flared as she slowed for the forestry track. Her hatchback coped with the broken surface better than I expected. Either she had driven it before or she was more experienced on remote roads than she claimed.

The track climbed through dense commercial Scots pine and spruce, passing warning signs about unstable mine shafts and hazardous ground.

My radio crackled with check-ins from officers elsewhere in the division. Ordinary voices reporting ordinary work in ordinary places where the worst outcome might be a report for suspected salmon poaching or a permit offence. I envied them their uneventful Tuesday afternoons.

The small car park appeared beyond the final bend, a gravel clearing cut into the trees with space for perhaps six vehicles. Catriona's hatchback stood alone in the centre, oddly isolated among trees that seemed to lean closer than they should.

She parked and got out immediately. I remained inside long enough to scan the area and orient myself. Nothing moved among the trees. No other walkers. No other vehicles.

Only the two of us, the mountains, and whatever waited in the woods where Elliot Ward had supposedly vanished while taking photographs.

I collected my rucksack and emergency equipment, forcing down the familiar dread that came whenever I thought of Strathdarran. Catriona waited beside her car, bouncing lightly on her feet with nervous energy that appeared genuine enough.

"The path begins over there," she said, pointing to a gap in the trees marked by a weathered wooden sign. "Elliot was excited because it leads to some buildings left from the mining days."

I knew the path. I had walked it three years earlier with Duncan, following reports of suspicious activity to a ruined house where everything went wrong. Where I froze at the crucial moment and lost the only partner who had ever trusted my judgement.

"All right," I said, settling the rucksack across my shoulders. "Let's find Elliot."

Catriona set off towards the path with the same confident stride I had noticed before. I followed, trying to concentrate on the immediate situation instead of the memories pressing at the edge of my mind.

It was an ordinary search. I was helping someone find her missing boyfriend. Basic human decency, with no connection to the past.

The radio crackled once more as we entered the woodland, carrying routine check-ins from colleagues working in safer places where their worst problem was paperwork.

I followed Catriona along the narrow path, my boots finding purchase on loose gravel and exposed roots. She stayed several paces ahead, occasionally cupping her hands around her mouth and calling Elliot's name into the trees.

Her voice travelled clearly through the still air. Nothing answered but her own echo rebounding among the pine trunks.

The path wound uphill through trees that grew more tightly packed the farther we went. It was a standard walking route and probably busy enough in the height of the season, although we had seen nobody since leaving the car park.

I kept a mental record of our route. North-west from the car park, following an old forestry track now used by walkers. My handheld GPS receiver plotted us clearly, while the Ordnance Survey map confirmed that we were moving towards the boundary of the ground I had spent three years avoiding.

"Elliot!" Catriona called again, then looked back at me. "He usually answers when I shout. He's probably just too far away to hear."

I nodded and checked the radio. The signal from the post remained clear, although we were nearing the edge of reliable coverage.

"How much walking experience does he have?"

"Not much, really. He's enthusiastic but inexperienced."

She stepped over a fallen branch without breaking stride.

"This is one of his first proper trips into remote country."

That matched what she had told me at the post. I noted it and continued watching the way she handled the path. For someone claiming no familiarity with the Highlands, she moved with remarkable confidence, although now and then she paused to check her bearings in a manner that suggested memory rather than instinct.

The slope steepened as we climbed into higher ground. My rucksack settled into a comfortable rhythm against my shoulders, its weight properly balanced for a search that might last longer than expected. I carried enough emergency supplies for a night out if necessary, though I hoped we would find Elliot within a few hours and avoid that complication.

"What time did you start walking this morning?" I asked, breathing easily despite the gradient.

"Around eight."

The answer came at once.

"We set out early because Elliot wanted the morning light for his photographs."

I thought about the hatchback's engine, which had still been warm when we returned to the car park half an hour earlier. If they had begun at eight and Elliot had disappeared after an hour, she would have noticed his absence at about nine. She had said she waited another hour before seeking help and then drove around looking for him before going to the post. The timeline worked, but only just.

"How long was he missing before you decided to get assistance?"

"Perhaps an hour. I kept expecting him to come back by himself. When it went beyond the time we'd agreed, I began to worry. Then I drove around looking for him before I came to you."

That accounted for the warm engine. Most people did try to solve such problems themselves before seeking official help.

We reached a fork in the path. Catriona stopped and looked from one branch to the other with what appeared to be genuine uncertainty. She took a folded sheet of paper from her jacket pocket.

"Elliot sketched a rough map of where he wanted to go," she said, studying it. "I think it's the left fork, but I'm not completely certain."

I unfolded my Ordnance Survey map and checked our position. The left-hand path was not marked as an official route.

"Are you sure this is the way he went?"

"He said something about leaving the main path to find better photographic viewpoints."

She looked between the paper and the two routes, her hesitation more convincing than her earlier certainty.

"He was excited about finding places other photographers hadn't discovered."

The explanation was reasonable, and her uncertainty seemed natural for someone in unfamiliar country trying to retrace another person's route.

"Elliot!" she shouted. "Can you hear me?"

There was no reply, only wind stirring pine needles and the distant rush of a burn somewhere below us.

The woodland felt devoid of human presence, which was not unusual on a weekday in such remote country. Still, the silence seemed too complete, as if the wildlife had chosen to avoid this particular stretch of ground.

I checked my watch. It was nearly 16:30. We had perhaps ninety minutes of useful daylight remaining.

"How much farther is it to where you last saw him?"

"Not far, I think. There should be a clearing ahead with old mining machinery scattered around. Elliot was fascinated by the history."

She stopped to retie her loosening ponytail.

"He's probably still there taking photographs. He loses all sense of time."

The mention of mining machinery tightened my stomach. We were moving into the old Strathdarran lead-mining district, where abandoned workings and forgotten industrial sites scarred the hillsides. I had hoped to avoid the worst of that ground, but Elliot Ward had apparently possessed different ideas about interesting subjects for photographs.

Catriona led us along the left fork, which narrowed to something resembling an animal track branching away from the walking route. It carried us into thicker woodland where the canopy blocked most of the afternoon light, creating an artificial twilight that rendered everything grey and indistinct.

She moved more cautiously now, sometimes checking landmarks against her paper and occasionally stumbling over roots or loose stones.

"This isn't somewhere most walkers would choose to go," I said as I stepped over a stretch of exposed ground.

"Elliot likes exploring. He's always looking for unusual shots other photographers haven't taken."

She glanced back with what appeared to be growing impatience.

"That's why he went ahead alone. He didn't want me slowing him down while he set up complicated photographs."

"What colour jacket was he wearing?"

"Red. A bright red waterproof. It should be easy to see."

I made a mental note.

"You're certain?"

She stopped and turned, mild confusion touching her face.

"Yes. Definitely red. I remember thinking it would make him visible from a distance."

After a pause, she added, "He brought a blue fleece as well, but he was wearing the red waterproof when I last saw him."

The clarification sounded natural, as though she were simply trying to help.

The route grew progressively steeper as we climbed towards whatever destination she had in mind. The GPS showed us nearing the outer boundary of the former mining ground, where warning signs marked unstable earth and dangerous abandoned structures. It was exactly the sort of place that attracted curious photographers, and exactly the sort of place where somebody could disappear without trace.

"Elliot!" Catriona called, her voice echoing from the slopes above. "We're coming to find you!"

I listened for a reply and searched the trees for movement or signs of recent passage. Nothing obvious presented itself, and the remoteness of our position was beginning to concern me. If Elliot was genuinely lost in this terrain, locating him before dark would require more searchers and probably support from Scottish Mountain Rescue, perhaps even the Police Scotland helicopter if conditions allowed.

We stopped beside a large boulder that offered a convenient place to rest. Catriona took a water bottle from her rucksack and drank deeply while I checked our position more carefully.

According to the GPS, we were a little over three kilometres from the car park and moving steadily into ground that saw very little recreational traffic.

"Do you mind if I try Elliot's mobile?" I asked, taking out my own.

Catriona looked uncertain.

"You can try, but I don't think he has it with him. He was worried about damaging it while climbing around the buildings, so he left it in the car."

My phone showed two signal bars, enough for basic communication.

"What's his number?"

She recited it and I dialled. After several rings, the call went to voicemail.

"Elliot, this is Police Constable Rowan Mercer of Police Scotland. Catriona and I are looking for you. If you receive this message, call back immediately or make enough noise for us to locate you."

"See?" Catriona said when I ended the call. "He left it in the car, just as I thought."

Her explanation made sense, though I would have preferred to verify where the phone actually was.

"We should keep moving. There's still a lot of ground to cover."

She resumed the climb without waiting for my answer, moving with renewed purpose now that we had committed to the route. I followed and watched how she negotiated each obstacle and turn. The path was becoming more defined as it joined what appeared to be an old access track from the mining days.

The higher we climbed, the quieter the woodland became. No birdsong. No movement from small animals in the undergrowth. Even the wind seemed muffled, leaving an unnatural stillness that reminded me of other places where something had gone terribly wrong.

Places where the ordinary sounds of life had been replaced by an oppressive silence that made every footstep seem too loud.

My radio crackled with static when I attempted a check-in. The response arrived broken and unintelligible, although we should still have been within the expected range. It might have been the terrain or some local interference, but the timing was unfortunate. If the search continued beyond daylight, I would need reliable contact to request additional resources.

"Unit Seven to base, checking in," I said into the handset.

Static answered, broken by fragments that might have been words.

Radio difficulties were hardly rare in the mountains, but they did nothing to ease my unease.

"Problems?" Catriona asked, still walking without looking back.

"Just checking our position with the post."

I clipped the radio to my belt and adjusted the straps of my rucksack.

"Standard procedure for an extended search."

"How much experience do you have with this sort of thing?"

The question sounded casual, but there was something in her tone beyond polite conversation.

"Search and rescue? A fair amount. I've been in this role for three years."

"And before that?"

"Police work."

I left it there. I had no desire to discuss the end of my detective career with someone whose story I was still assessing.

We continued through woodland that felt increasingly cut off from civilisation. Afternoon light filtered strangely through the pine canopy, throwing shifting patterns of brightness and shadow across my peripheral vision. Nothing stirred in the undergrowth. There was no sign of recent human passage.

Only us, and whatever waited farther into the hills.

Catriona pressed on with steady purpose, calling Elliot's name now and then but seldom pausing long enough to listen for an answer. Her urgency looked genuine, yet I was beginning to wonder what, precisely, she expected to find when we reached our destination.

The radio produced another burst of static, this one entirely garbled. I attempted to raise the post again and received nothing but electronic noise. Either the higher mining ground had taken us beyond effective range or something was interfering with the transmission.

Neither possibility improved my feelings about our distance from help.

"There," Catriona said, pointing through the trees. "I can see the clearing where Elliot was meant to be taking photographs."

I followed her gesture and made out an open space beyond the edge of the woodland, roughly four hundred metres ahead. I could see nothing within it yet, only the break in the tree line, but we had reached the place towards which she had been leading me.

"Elliot!" she called, louder this time. "We've found the place!"

Nothing answered from the clearing. The same unnatural silence followed us up the slope, as though the forest itself were holding its breath.

The clearing opened before us exactly as Catriona had described. It was a rough circle of bare ground enclosed by tall pines, with rusted pieces of lead-mining machinery half-buried beneath decades of fallen needles and leaves.

My gaze swept the area automatically, identifying hazards and possible escape routes before settling on the person we had come to find.

Elliot Ward sat propped against a fallen trunk on the far side of the clearing. His red waterproof jacket shone against the grey bark.

He was too still. Even from nearly thirty metres away, I knew there was something fundamentally wrong with his posture.

"Elliot!" Catriona shouted, hurrying forwards. "Thank God we've found you."

I caught her arm before she had gone more than a step.

"Wait."

She turned to me with what looked like confusion, perhaps irritation.

"What's wrong?"

I raised my binoculars and focused on the figure by the trunk. The red jacket matched her description. Sandy hair showed beneath a walking cap. Jeans and new walking boots.

But Elliot Ward was not moving. He did not respond to Catriona's voice. There was nothing about him to suggest life.

"Elliot?" I called across the clearing.

No answer. No change in posture. Nothing.

I lowered the binoculars and looked at Catriona. She was watching me with an expression I could not read.

"Stay here while I check him."

"Is he hurt? Can you tell if he's hurt?"

Her voice contained the correct notes of concern, yet its delivery sounded rehearsed.

I approached Elliot with the measured care of someone who had attended too many crime scenes. Each detail registered as I drew closer: the impossible stillness, the awkward angle of his limbs, the shadows lying across his face.

At six metres I smelt the metallic tang that always meant blood. At three metres I stopped.

Elliot Ward's eyes had been sewn shut with thick black thread. His mouth had been stitched closed with the same crude material. Dark stains covered the front of his red jacket, and his hands had been arranged palm upwards in his lap, a pose that was ceremonial rather than natural. Blood had collected beneath the trunk and soaked into the earth in a pattern suggesting he had been bleeding for hours.

Everything about the positioning was wrong. Bodies did not arrange themselves in flawless ritual poses. The thread piercing his eyelids and lips spoke of deliberate, methodical work by someone who knew exactly what they were doing.

"Oh my God," Catriona said behind me.

I turned. She stood at the edge of the clearing, but her expression was not the horror I expected. She looked calm and attentive, like someone inspecting her own work rather than discovering her boyfriend's corpse.

I took out my radio, although my hands had already begun to tremble with recognition. The posture. The sewn features. The deliberate placement of the limbs.

I had seen the same scene three years earlier in a derelict house at Strathdarran. Graham Souter, a missing walker, had been found in precisely that position, with the same black thread closing his eyes and mouth.

"Unit Seven to base," I said into the handset. Only static replied. "Immediate backup and Scottish Ambulance Service response required at my location. Confirmed fatality. Request divisional CID and a forensic pathologist."

"Wait," Catriona said, approaching quickly. "Don't report it yet."

I stared at her.

"The victim is dead. This is a crime scene."

"What if he's only unconscious? What if he's hurt but still alive?"

She reached towards Elliot as if she intended to touch him.

"We should check for a pulse first."

The suggestion was so grotesquely inappropriate that I stepped back, my hand moving instinctively towards my Taser. Nobody looked at a body whose eyes and mouth had been sewn shut and suggested checking for vital signs. Nobody except someone who already knew exactly what lay before them.

"Stay away from the victim."

Her expression changed slightly, some of its manufactured concern falling away.

"I only think we should be thorough before assuming the worst."

I took out my camera and began recording the scene, although my investigative practice felt rusty after three years away from detective work. Elliot's position. The pooled blood. The ritual arrangement of his hands. The black thread, identical to what I had photographed in the ruined house where everything had gone wrong.

Through the viewfinder, I saw details that turned my stomach. The wounds on Elliot's body were not random acts of violence. They formed patterns, placed with a precision that suggested knowledge and purpose. Someone had spent time doing this. Someone had known exactly what they wanted.

"This wasn't an accident," I said, more to myself than to Catriona.

"What do you mean?"

I looked up and found her watching me with predatory intensity.

"Somebody did this to him. The positioning, the stitches, the wounds. It's deliberate."

She remained silent for a long moment.

"Have you seen anything like it before?"

The question struck like a physical blow. Graham Souter's face flashed through my memory. The same sealed eyes and mouth. The same careful arrangement. The same sense that Duncan and I had stumbled into something larger and more dangerous than an ordinary missing-person inquiry.

The night Duncan Reid disappeared.

"Yes," I said. "I've seen it before."

Catriona nodded slowly, as if I had confirmed something she already knew.

"Where?"

I tried the radio again, desperate to make contact, but received only electronic noise. The isolation felt complete now. Intentional. As though we were meant to be cut off from help.

"Three years ago. A different victim, the same method."

I continued photographing as I spoke, preserving evidence that somebody needed to see.

"A walker named Graham Souter."

"And what happened to the person who killed him?"

The casual curiosity in her question made my skin crawl. People did not enquire after killers while standing beside a fresh corpse unless their interest went far beyond ordinary concern.

I clipped the radio to my belt and looked properly at Catriona for the first time since we had found Elliot. Her breathing was steady. Her colour was normal. She showed no signs of shock or trauma after discovering her boyfriend's mutilated body.

Instead, she appeared focused and alert, like someone waiting for the next stage of a plan.

"We need to leave immediately," I said. "This is an active crime scene, and whoever did this may still be nearby."

"What about Elliot? We can't leave him here."

"Elliot is beyond help. Our priority is to return to an area with communications and report what we've found."

She stepped closer to the body. Again I noticed the confidence in her movements that had bothered me throughout the climb. There was no hesitation and no revulsion, as if standing beside a stitched corpse were familiar to her.

"I need to call his family," she said, taking out her mobile. "They should know what happened."

The display showed three clear signal bars, strong enough for a normal call.

"You said there was no mobile coverage up here."

Catriona glanced at the screen and then at me. For the first time, her expression showed something like annoyance.

"It comes and goes. Some places are better than others."

She dialled and lifted the phone to her ear, turning slightly away. Her voice was quiet, but I heard every word.

"It's done," she said. "He found the offering."

A pause.

"Yes. He recognised the pattern, just as you said he would."

I drew my Taser before consciously deciding to move. Three years in the rural unit had not dulled the tactical reflexes that eight years in conventional policing had drilled into me.

"Put the phone down and step away from the body."

Catriona ended the call and turned towards me with a smile bearing no resemblance to the frightened girlfriend who had sought my help three hours earlier.

"Hello, Constable Mercer. We've been waiting a long time to meet you properly."

I kept the Taser trained on her. Muscle memory from eight years in policing overrode everything else.

She stood about five metres away, the wrong smile still fixed across her face, as if discovering her boyfriend's mutilated corpse were the highlight of her long weekend.

"Show me your hands and place the phone on the ground slowly."

I used the command voice that had carried me through domestic incidents, arrests and violent confrontations.

She laughed instead of complying, and the sound held genuine amusement rather than hysteria.

"You really think this is about arresting me? After everything you've seen?"

"You told someone it was done. You said I'd found the offering and recognised the pattern. You knew exactly what we'd find here."

"Of course I did."

She slipped the phone into her jacket pocket with deliberate ease, ignoring the Taser.

"Elliot was chosen specifically for this moment. Just as Graham Souter was chosen three years ago."

Graham's name struck like a blow. Only a handful of people knew the details of that case, most of them police officers involved in the Strathdarran investigation.

"How do you know his name?"

"We know a great many things about you, Constable Mercer. Where you live. Where you work. How many times you check the locks before going to bed."

She tilted her head, studying my reaction.

"How you still wake screaming Duncan's name."

My hands began to shake, but I kept the Taser's sights centred on her. Nobody outside Police Scotland knew about the nightmares. Nobody except the therapist I had stopped seeing after six months, and she was bound by professional confidentiality.

"We've been waiting a long time for you to return to these hills," Catriona continued. "You were meant to be part of the first offering, but you ran instead of remaining to witness the transformation. That complicated matters."

The clearing seemed to contract around us, the trees pressing closer. I checked my peripheral vision for movement while keeping her in sight. The woodland appeared empty apart from the rusting mining equipment and Elliot's posed body.

"You are under arrest on suspicion of murder. Turn around and place your hands behind your back."

She whistled instead.

Three sharp notes cut through the afternoon air like a signal.

Two men emerged from opposite sides of the tree line, moving with the co-ordinated precision of people who had done this before.

I recognised the first immediately. Callum Rusk. A local hard man who had spent years moving in and out of the custody suite for assault and criminal damage. He was older and heavier now, but unmistakably the same man whose custody photographs I had reviewed while serving as a detective constable.

The second man was younger, perhaps in his late twenties. He wore premium walking gear that matched Elliot's almost exactly - the same make of jacket and the same style of boots, as though both outfits had come from the same outdoor retailer.

Or as though they had dressed their victims to meet some precise requirement. Both men carried fifteen-centimetre stalking knives, holding them with the easy grip of people accustomed to cutting things that bled.

"Callum Rusk," I said, turning to keep all three of them in view. "Still running with the wrong crowd, I see."

Callum grinned, revealing teeth that had deteriorated since his last custody photograph.

"Hello there, Constable Mercer. Heard you'd switched to chasing salmon poachers instead of doing real police work."

The younger man moved quietly around the edge of the clearing, angling to get behind me while Callum positioned himself between me and the trail by which we had arrived.

It was a classic pincer movement, designed to close off my escape and divide my attention.

"Stop right there," I called to the younger man, although I had to split my focus between all three threats. I drew my issued Taser and aimed it towards the centre of the group. "Drop the knives and get on the ground."

"This is Jamie Venn," Catriona said conversationally, as though introducing us at a dinner party. "He was meant to be the offering before Elliot, but it turned out Jamie had other talents that made him more useful alive."

Jamie nodded without speaking and continued his careful approach from my left flank.

His movement was practised and deliberate. He had learnt to hunt things that fought back.

I retreated towards the centre of the clearing, trying to maintain a clear view of all three while keeping Elliot's body behind me. That position required me to trust that whatever had been done to him was finished, although the metallic smell of fresh blood suggested otherwise.

"The ritual requires particular victims," Catriona explained, beginning to pace in a slow circle around me. "People with certain experiences, certain traumas that make them suitable for our patron's purposes. Elliot was chosen because his pain would be pure. A young man discovering that love and trust were only illusions before his transformation."

She gestured towards Elliot's corpse with casual affection, as though discussing a successful work of art.

"But you, Constable Mercer, were chosen for something much more important. You were meant to witness the offering three years ago. You were meant to understand what Duncan Reid became when he accepted our patron's gift."

At the sound of Duncan's name, my vision blurred for a moment. Three years of suppressed memories threatened to surface at once: the house in Strathdarran, the sounds from the attic, the way I had frozen in the doorway instead of rushing to help when my partner needed me most.

"Duncan didn't accept anything," I said, although my voice was weaker than I intended. "He was murdered."

"Was he?"

Catriona stopped pacing and smiled with what appeared to be genuine warmth.

"Or did he choose transformation over abandoning the people he'd sworn to protect?"

Callum had moved closer while she spoke. He was now less than four metres away, shifting to gain a clear line for a rush. Jamie maintained his flanking approach, patient and methodical. They had done this before, probably several times, judging by their coordination.

I glanced back at Elliot's body and felt my stomach drop.

Fresh cuts marked his torso, cuts that had not been there when I first approached him. Deep incisions followed geometric patterns and still seeped blood on to the forest floor. Someone had continued working on him while we talked, preparing him for whatever came next.

"He's not finished yet," Catriona said, noticing where I was looking. "The physical preparation is only the beginning. The real offering happens when the witness understands what they are seeing, when the trauma becomes complete and feeds our patron's hunger."

She drew a bone-handled knife from inside her jacket. Its blade was already stained with what had to be Elliot's blood.

"You were supposed to watch Duncan's transformation. You were supposed to understand that some gifts require the sacrifice of everything human. But you ran. Our patron had to feed on an incomplete offering."

The knife caught the afternoon light filtering through the Scots pine canopy, throwing sharp reflections across the clearing. Behind Catriona, the woodland seemed darker, as though shadows were gathering where shadows had no right to exist.

"That is why we needed you to come back," she continued. "To complete what should have happened three years ago. To witness the offering properly this time, so our patron can finish what was begun in that house."

Callum tensed, shifting his weight on to the balls of his feet. Jamie had reached his flanking position and stood ready to move at Catriona's signal.

Three against one, my back exposed to a fresh corpse, no backup coming and radio communication dead.

Catriona began chanting in a language that sounded older than human speech. Harsh syllables caught in her throat before emerging as sound.

They were the same words I had heard in nightmares for three years. The same impossible sounds that had echoed from the attic in Strathdarran while I stood paralysed in the doorway below.

The ritual had begun, and I was exactly where they wanted me.

I kept the Taser trained on Catriona, trying to track Callum's approach while watching for Jamie's next move. The chanting grew louder, harsh syllables that belonged in nightmares rather than a Highland forest. My finger tightened against the Taser's trigger guard. With three attackers closing in, I would have only seconds to incapacitate one of them and create an escape route.

Something heavy struck the side of my head with enough force to send stars exploding across my vision.

The ground rushed up as my legs gave way. I heard the Taser clatter into the undergrowth beyond my reach.

Jamie stood over me holding a thick pine branch, scraps of bark and needles still clinging to the makeshift club.

"Nice work," Callum said, already advancing with a coil of rope in his hands. "Grab his legs."

I tried to roll away, but my head felt disconnected from the rest of my body. The blow had scrambled something essential, leaving me with double vision and hands that would not obey the simplest commands. Jamie discarded the branch and seized my ankles while Callum bound my wrists with practised efficiency.

"Shouldn't have run the first time," Callum muttered, drawing the knots tight enough to stop the circulation. "Made this whole thing more complicated than it needed to be."

Catriona's chanting continued without pause, but now I could distinguish individual words buried within the ancient syllables. Names, I realised. Elliot Ward. Graham Souter. Duncan Reid.

She was calling them by name, as though summoning their spirits or announcing their arrival to something listening in the darkness.

My vision slid in and out of focus as they dragged me towards Elliot's corpse. The cuts on his body had multiplied, forming geometric patterns that seemed to pulse with a rhythm of their own. Fresh blood pooled beneath the fallen log against which he sat, more than any human body should have contained.

Through the ringing in my ears, I heard movement in the woodland around us.

Footsteps approached from several directions, coordinated but attempting to remain quiet. Callum and Jamie exchanged glances, then took positions on either side of Catriona as her chanting rose in intensity.

Six figures emerged from the tree line wearing masks that looked as though they had been assembled from nightmares. Animal pelts had been stitched together with human hair. Eyeholes had been cut at wrong angles, and the mouths were stretched into permanent screams.

They moved with the confidence of people who knew precisely where they were going.

I recognised the first one, and my stomach lurched.

Morag Ainsley, the walking instructor who had vanished in Cairngorms National Park eighteen months earlier after leading a group expedition from which everyone but her had returned. The extensive search had found nothing except her abandoned equipment at a remote campsite.

Now she stood less than four metres away, holding a ceremonial blade with symbols carved into its handle. Her face was visible beneath a mask made from what appeared to be wolf fur and blonde human hair.

"The witness is prepared," she called to Catriona in a voice I remembered from news reports in which her family had pleaded for information about their missing daughter.

Another masked figure stepped into better light, revealing features that belonged to Ravi Shah, a University of Edinburgh student who had disappeared in the Ben Alder hills two years earlier. His university walking club had reported him missing after he left the group to photograph a waterfall. Scottish Mountain Rescue teams and police search officers had combed the area for weeks without finding a trace.

The third figure moved differently, older and more cautiously, but when he adjusted his position I saw the distinctive scar along his jaw. It matched photographs from Peter Halden's missing-person file. He was a wildlife photographer who had been investigating abandoned lead-mining workings when he vanished, leaving expensive camera equipment behind but no other clues.

They formed a perfect circle around Elliot's body, each carrying ritual implements that caught the filtered afternoon light: bone-handled knives, bowls carved from dark wood and bottles filled with liquid that moved too slowly to be water.

My concussion made everything seem distant and unreal, like a film viewed through thick glass, but the implications reached me with perfect clarity.

These were not unrelated disappearances. The cult had been collecting people from the Highlands, the Southern Uplands, Cumbria and Northumberland for years. Experienced walkers, climbers and outdoor professionals, people who knew how to survive in wild country but had encountered something that rendered those skills meaningless.

"How many?" I managed to ask through the fog in my head.

Catriona paused her chanting long enough to smile at me.

"How many what, Constable Mercer?"

"How many people have you taken?"

"Taken?"

She laughed with genuine amusement.

"We do not take anyone. We offer them transformation. Some accept the gift willingly, like our circle here. Others resist and become offerings instead, feeding our patron's hunger until he is strong enough to offer the gift to everyone."

Morag knelt beside Elliot's body and began working with her ceremonial blade, making precise cuts along the patterns Catriona had begun. Fresh blood flowed at once, more freely than the earlier wounds could explain. Whatever they were doing was accelerating some biological process I did not want to understand.

"Our patron has slept for centuries," Catriona continued, returning to her place at Elliot's head. "But every offering feeds him and brings him closer to awakening. Every witness spreads the fear that draws more victims to our attention."

The circle began chanting in unison. Their voices merged into harmonies that made my teeth ache. The words seemed to vibrate through the ground, as though the earth were responding to sounds older than human language.

"You were perfect for our purposes," Catriona said, raising her voice above the chant. "A broken police officer running from trauma, hiding in the wilderness where no one would believe his stories. Every nightmare you have suffered for three years was our patron touching your mind, preparing you for this moment."

Peter Halden produced a wooden bowl and positioned it beneath the blood flowing from Morag's work. Ravi Shah arranged small objects around the circle's perimeter: stones carved with symbols, dried bones and fragments of metal that looked as though they had been torn from human bodies.

The chanting became louder and more frenzied, building towards something that made every survival instinct I possessed scream a warning. Elliot's body began to change beneath their hands. His skin acquired an unnatural pallor while the geometric cuts seemed to pulse with a heartbeat of their own.

"Duncan Reid served our patron beautifully," Catriona called over the noise, her eyes bright with religious fervour. "He did not simply vanish from that house, Constable Mercer. He was chosen. Transformed. Given the gift of true understanding about what humanity is beneath all its pretence."

Morag's blade moved faster, following patterns that appeared to guide themselves. Blood flowed in streams that defied gravity, travelling upwards along invisible channels towards something I could not see but could feel gathering in the air above us.

"You were meant to witness his transformation," Catriona continued. "You were meant to understand that death is not the end, but the beginning of true service. But you ran, and our patron had to feed on an incomplete offering."

The chanting reached a crescendo that set my ears ringing, the voices combining into a sound like machinery grinding against itself. The forest around us had fallen completely silent. There were no birds calling and no wind stirring the pine needles.

"That is why we needed you to return," Catriona shouted. "To complete what should have happened three years ago. To witness the offering properly this time, so our patron can finish what was begun in that house."

Morag raised the wooden bowl, now filled with blood that swirled in unnatural currents. Peter and Ravi poured liquid from their bottles on to the ground in patterns connecting the carved stones. The smell of copper and something else, something like decaying flowers, filled the clearing.

The chanting stopped abruptly, leaving a silence so complete that it pressed against my eardrums.

Catriona raised her ceremonial knife above Elliot's motionless body. Its blade caught a light too bright for the approaching evening.

"Witness the offering," she said, her voice carrying across the clearing with perfect clarity. "Witness the gift our patron bestows upon those who serve his hunger."

She brought the knife down towards Elliot's chest with ritual precision.

A roar erupted from deep within the forest. It was inhuman and so loud that pine needles shook from the trees above us. The sound held rage, intelligence and something else that froze every person in the clearing with their hands still arranged for the ceremony.

Several cult members turned towards the woodland with terror rather than anticipation. Even behind their masks, their fear was unmistakable as they searched the tree line for whatever had made the sound.

The roar came again, closer now, accompanied by the crash of something enormous moving through dense undergrowth at impossible speed.

The creature that burst through the Scots pines moved like violence given physical form, but it was wrong in every way that mattered for anything born into this world.

It stood nearly two and a half metres tall, covered in white fur, with elongated limbs that bent at joints shaped for purposes other than walking upright. Its face combined human features with something predatory and ancient. Intelligent eyes stared above a mouth crowded with teeth that belonged in nightmares rather than a Highland forest.

Every cult member remained frozen for precisely three seconds, the ritual forgotten as primitive survival overwhelmed religious fervour.

Then panic broke across the clearing.

Callum dropped the rope and staggered backwards, drawing his stalking knife while shouting something I could not understand through the ringing in my head. Jamie abandoned his position and sprinted towards the trees, crashing through the undergrowth with the desperate energy of prey that knew it had already been marked for death.

The creature moved with a speed that defied its size, crossing the distance to Callum in two powerful strides. One clawed hand swept across his torso with surgical precision, opening him from shoulder to hip in a spray of blood that painted the forest floor crimson.

Callum's scream ended abruptly as he collapsed. His knife fell uselessly from fingers that would never grip anything again.

"Hold formation!" Catriona shrieked, although her voice carried the terror she had concealed beneath religious certainty. "Complete the offering! Our patron protects the faithful!"

Morag attempted to resume the chant, raising her ceremonial blade above Elliot's motionless body, but her hands shook so violently that the weapon almost slipped from her grasp.

The creature turned towards her with the patience of something that had hunted these people for far longer than a day or a month.

She managed three more words of the ancient language before its claws severed her head from her shoulders with the efficiency of a guillotine. Her body crumpled beside Elliot's corpse, and her blood added fresh patterns to the geometric designs cut into his chest.

Two more cult members broke ranks and fled into the forest, abandoning their masks as they crashed through pine branches and over fallen trunks. The creature watched them go with what appeared to be calculated judgement, as though deciding whether pursuit was necessary or whether fear would achieve the same end.

Peter Halden backed away from the circle, still clutching the wooden bowl in both hands. Blood sloshed over its rim as his arms trembled. The creature studied him for a moment, dismissed him as no immediate threat and turned to survey the remaining targets.

Then those intelligent eyes found me.

In three years with Police Scotland's rural and wildlife crime unit, I had watched predators assess the world around them: foxes deciding whether a human presented danger, an injured red deer stag calculating whether it had room to flee, even adders holding still in the hope of escaping notice.

This was different.

The creature looked at me as a person might, noticing details that mattered beyond the simple relationship between predator and prey: my uniform, my position on the ground, the rope around my wrists and the blood on my head from Jamie's blow.

It approached with care, every movement deliberate rather than instinctive.

It came close enough for me to see scars crossing its white fur, old wounds that spoke of years spent fighting enemies capable of fighting back. Close enough for me to smell something reminiscent of pine woodland and clean snow, nothing like the decay I had expected from a creature surrounded by death and violence.

One immense claw reached towards my bound hands.

I braced for pain, but none came. The rope parted like thread as the claw sliced through it with surgical precision.

The creature withdrew immediately, giving me room to move while keeping its unsettling gaze fixed upon my face. I flexed my fingers as the circulation returned, trying to understand what had happened.

It had killed Callum and Morag without hesitation. It had allowed the fleeing cultists to escape. Yet it had cut my bonds as carefully as though administering first aid.

A sound formed deep in its throat, somewhere between a growl and an attempt at speech by vocal cords no longer capable of shaping human words.

It pointed one clawed hand towards a gap in the trees that I had not noticed before. A narrow path led away from the clearing in the opposite direction from the route Catriona and I had taken.

Understanding struck me with physical force.

This was neither random violence nor predatory behaviour. The creature was showing me an escape route. It was protecting me from whatever was happening in the clearing. It knew the difference between the cult members and someone brought there against his will.

"Thank you," I managed, although my voice was scarcely more than a whisper.

The creature tilted its head slightly in acknowledgement. The recognition in that gesture strengthened the suspicion forming inside me. Whatever it was, it understood human speech and responded to gratitude like something that remembered what gratitude meant.

Catriona's voice cut across the clearing. She had dragged Elliot's body closer to the tree line and was still attempting to salvage the ritual as her followers scattered or died around her.

"The offering must be completed. Our patron demands a witness to the transformation."

The creature turned towards her with the focused attention of something that had been waiting for this particular target. Its purpose went beyond protecting me or interrupting the ritual.

This was personal.

I forced myself to my feet. My legs were unsteady from the concussion, but they could carry me towards the path the creature had indicated.

Looking back, I saw it stalking towards Catriona with the patience of something that had planned this confrontation for years. She saw it coming and began chanting frantically, the words tumbling over one another as she tried to complete the transformation she believed would save her.

The creature stopped just beyond the reach of her knife and watched her with what looked like sorrowful recognition rather than rage.

When Catriona raised the ceremonial blade towards Elliot's chest for the final time, it moved. Not with the explosive violence it had shown Callum and Morag, but with deliberate care, as though ending something that had already continued for too long.

Her screams followed me as I stumbled on to the path, and a dreadful possibility settled into place.

The creature was not serving the cult or feeding upon its victims. It was hunting the cult, systematically destroying threats that the police could neither identify nor confront by conventional means.

Whatever had happened to Duncan Reid in that house three years ago might not have been death or disappearance. It might have been a transformation into something capable of fighting monsters that human authorities could not admit existed.

The path descended through dense undergrowth. Subtle signs showed that an intelligent hand had maintained it for people needing a swift escape from the clearing above. Broken branches had been positioned to guide travellers. Loose stones had been cleared from places where a running person might turn an ankle. Small markers would have been invisible unless one knew what to seek.

Behind me, Catriona's screams stopped abruptly. They were replaced by sounds suggesting methodical work rather than frenzy. Perhaps the creature was clearing away evidence of itself, or gathering what it knew the police would need to prove that human crimes had occurred there.

I continued downhill, following markers towards what I hoped would be civilisation and radio contact with the outside world.

The concussion left everything distant and unreal, but one thought remained perfectly clear.

If the creature was Duncan, then Duncan was still protecting people. He was still serving and defending, even after becoming something that could never be acknowledged, thanked or commended for heroism beyond human understanding.

The path continued down through commercial Scots pine and spruce woodland that no longer seemed quite so threatening. It had been marked by someone who wanted witnesses to survive and carry their accounts to authorities who might not believe them, but would at least investigate.

Something was hunting the cult across these hills. Something that remembered enough of humanity to free an innocent victim, and understood that some battles required monsters to fight monsters.

My legs kept carrying me down the marked path although my head felt detached from the rest of my body. Each step was uncertain, like crossing the deck of a boat in rough weather. Pine branches caught at my jacket as I moved between the markers along a route maintained for precisely this purpose.

The forest returned to its ordinary sounds. Birds called from the canopy, wind stirred the needles and water rushed over rocks somewhere in the distance. Those natural noises suggested that whatever had happened in the clearing was finished, one way or another.

I checked my watch through double vision that blurred the figures together. It was nearly 18:30, with full darkness perhaps an hour away. The path descended steadily, taking me away from the nightmare above and towards what I hoped was the marked Police Scotland 4x4 at the trailhead.

Whenever I paused to regain my bearings, I heard nothing from the clearing. No screaming, no chanting, no sounds of pursuit or violence. Only the silence left behind when something has ended permanently.

The trail markers became more frequent as I approached the lower ground. Small stones had been arranged in patterns that would mean nothing to an ordinary walker but gave clear directions to someone in need of guidance. Whoever had prepared the route understood that the people following it might be injured, disorientated or running for their lives.

When I finally saw the marked 4x4 through the trees, parked exactly where I had left it four hours earlier, my legs nearly failed with relief. It looked impossibly normal in the rough car park, a fragment of ordinary reality that had somehow survived contact with whatever inhabited those hills.

My hands shook so badly that I missed the ignition three times. On the fourth attempt the engine started, producing the reassuring mechanical sound of something designed by engineers rather than shaped by ancient ritual.

I sat behind the wheel, breathing hard and trying to decide what had to happen next.

Radio first. Request urgent backup and medical assistance. Report multiple fatalities and ask for trained officers and crime-scene support. Let someone else document the clearing while I concentrated on not losing consciousness from the blow to my head.

I lifted the radio handset and checked the display.

The signal had returned at full strength. Communication with the control room was clear. Whatever had isolated us on the higher mining ground had stopped interfering once the ritual was broken.

"Control, this is Rural Seven requesting immediate emergency assistance and medical support," I said, surprised by the steadiness of my own voice.

"Rural Seven, go ahead. Give your location and the nature of the emergency."

"Strathdarran trailhead. Multiple fatalities confirmed. Request urgent police response, crime-scene attendance and Scottish Ambulance Service support. One officer injured, conscious and mobile."

The controller's voice sharpened at once.

"Rural Seven, confirm multiple fatalities. How many casualties?"

I closed my eyes and tried to separate the deaths I had witnessed from the people who had fled into the trees.

Callum had been opened from shoulder to hip. Morag had been decapitated. Catriona's screams had ended while the creature completed whatever it had planned for years. Jamie and Peter had fled, along with Ravi and at least two others.

"At least three confirmed dead. An unknown number of suspects have escaped into the woodland. I need immediate backup. The scene is approximately three kilometres north-west of my position, following a marked path from the trailhead."

"Received, Rural Seven. All available units are responding. Estimated arrival in seventy-five minutes. Are you in immediate danger?"

I looked around the empty car park, then towards the higher ground where something inhuman moved through forests that belonged more completely to it than to any human authority.

"Negative. The immediate threat has withdrawn."

"Paramedics are en route. Can you reach the trailhead for collection?"

"I'm already at the trailhead. I'll remain in the vehicle and preserve the scene."

The first local police vehicle arrived about eighty minutes later, followed closely by Scottish Ambulance Service paramedics and additional divisional officers. Specialist investigators and National Crime Agency personnel would follow as the scale of the incident became clear.

I had spent the intervening time inside the locked 4x4, writing down everything I could remember before the concussion blurred the details.

Detective Chief Inspector Alastair Kerr stepped out of the lead vehicle. I recognised him from the original Strathdarran investigation three years earlier. He approached with the measured caution of someone who had attended enough traumatic crime scenes to understand what they did to the people who survived them.

"Rowan," he said through the window. "I understand you've had a difficult evening."

I lowered the window and handed him my preliminary notes: three pages of handwritten detail concerning cult members, ritual murder and the creature that had intervened to save my life.

"Everything is there, sir. Everything I witnessed and everyone I could identify."

Kerr scanned the first page. His expression shifted from professional concern to deep scepticism when he reached my description of the creature.

"Nearly two and a half metres tall, white fur, appeared to hunt particular targets," he read. "Rowan, you've suffered a head injury. Are you certain of these details?"

"I'm certain of what I saw."

I understood his position. Three years earlier, he had taken a similar account from me about sounds that should not have existed and evidence that defied conventional explanation. We had both learnt that some truths were too dangerous to place plainly in an official file.

The paramedics examined me and found evidence of a mild traumatic brain injury, but judged me stable enough to continue giving an initial account. Once the first scene assessment had been made, trained officers and crime-scene investigators carried their equipment up the marked path. Portable floodlights transformed the forest into something resembling a film set.

They found Elliot Ward's body exactly where I had described it, seated against the fallen log with his eyes sewn shut and geometric incisions covering his torso. Blood patterns showed that several people had occupied the clearing, and tracks led away in different directions through the dense woodland.

But no other bodies remained, despite my having watched Callum and Morag die only hours earlier.

"This matches the Graham Souter case," Kerr told me privately while the scene photographers documented Elliot's position. "The same black thread, the same cuts, the same ceremonial arrangement. But if two other people were killed here, we ought to be finding their bodies."

I had no explanation that would belong in an official statement. The creature had apparently removed the supernatural evidence while leaving enough behind to establish the cult's ritual murder: blood and drag marks, abandoned masks, discarded cable ties, fibres and a damaged ritual blade.

NCA officer Imran Qureshi arrived later as the incident widened into a possible cross-border organised-crime investigation. He was a grave man in a well-cut suit who looked as though he had not slept properly in months. He interviewed me separately, recording every detail except the creature while asking questions that suggested he had encountered related cases before.

"The woman who brought you here, Catriona Vale," he said, checking his laptop. "There is no official record of anyone matching that name and identity. The blue hatchback she drove was stolen three days ago from a budget hotel outside Perth."

"What about the others? Callum Rusk and the people who came out of the trees wearing masks?"

Qureshi's expression hardened.

"Callum Rusk was reported missing from his flat four days ago. His landlord found the door unsecured and indications of a hurried departure, but nothing showing where he had gone. Morag Ainsley has been missing for eighteen months. Ravi Shah disappeared two years ago. We have identified at least six other missing people who fit descriptions in your statement."

The implications settled upon me like physical weight.

The cult had operated across Scotland and northern England for years, systematically gathering people experienced in wild country and turning them into either victims or perpetrators. Different police forces had investigated isolated disappearances without recognising the larger pattern that connected them.

"How many comparable scenes have you documented?" I asked.

Qureshi closed his laptop and looked directly at me.

"Off the record? Seventeen linked ritual killings across Scotland and northern England during the past decade. The Highlands, the Southern Uplands, Cumbria and Northumberland. Always in remote country, and always connected to missing people who either reappear as victims or vanish completely. The restricted flow of information to the press is not accidental, Rowan. We are dealing with an organisation that operates outside ordinary criminal patterns."

By dawn on Wednesday, the crime-scene team had completed its preliminary documentation while search officers combed the surrounding woodland. They found blood trails, abandoned ritual objects and evidence of several people fleeing through the area, but no trace of the creature or the surviving cult members.

I sat inside the 4x4 as the morning light filtered between the pines and wrote a three-page initial statement. Then I began a separate letter of resignation, addressed through DCI Kerr to Police Scotland.

I had spent three years hiding in rural and wildlife crime work, telling myself I was recovering from trauma when I had really been fleeing the knowledge that conventional policing could not protect people from threats that ought not to exist.

The survivor's guilt that had pressed upon me since Strathdarran began to ease as I considered what might truly have happened to Duncan Reid. I could not yet call it certainty, but the creature had remembered enough of humanity to distinguish innocence from guilt. It had freed me, shown me a maintained escape path and destroyed immediate threats with precise force, while leaving investigators evidence of the human crimes.

If it was Duncan, he was still out there in the hills, still serving and protecting in ways that could never be officially acknowledged or rewarded. He was fighting battles that might have required him to sacrifice everything human in order to hunt monsters that fed upon human suffering.

I folded the resignation letter and placed it in my jacket pocket as Elliot's body was prepared for transport to a regional forensic mortuary. The forensic pathologist would record homicide, not ritual sacrifice. The official investigation would concern organised cult activity, cross-border abduction and multiple murders - crimes that Police Scotland and the National Crime Agency could pursue through existing structures.

Yet somewhere in the Highlands, an ancient evil might still be growing stronger with each completed ritual, feeding upon trauma and fear in preparation for something larger than a series of isolated deaths.

The creature might be the only thing standing between ordinary life and that awakening.

I drove south from the scene towards Inverness, carrying knowledge I could not yet place in an official report but would never forget. I knew I would return, not as a constable trying to force the inexplicable into conventional procedure, but as someone who understood that some truths were too important to abandon.

Duncan had shown me, if my inference was right, that duty could survive transformation, recognition and any hope of returning to a normal life. The least I could do was find a way to help.

Specialist evidence collection at the clearing continued until Friday. By then I had submitted my three-page statement and sent my resignation through DCI Kerr to Police Scotland.

Saturday was three days after the incident. I had spent the intervening time in my empty flat in Inverness, trying to understand what I had learnt about Duncan and what it meant for everything I believed about the night in Strathdarran three years earlier.

The decision to return to the hills had not come easily.

Part of me wanted to take the A9 southbound, join the motorway network and put the Highlands behind me for good, starting again somewhere the air carried no reminders of ancient evil or impossible transformation.

But I could not leave without attempting some form of communication with whatever Duncan had become. I could not abandon him a second time without at least trying to tell him what his sacrifice meant.

I packed a rucksack for a full day's walk: water, emergency food, a first-aid kit, rope, an LED lantern and a backup torch in case the search led me into the abandoned mining caves.

The letter I carried had taken three attempts to write. It described what happened in the clearing and thanked him for saving me. Most importantly, it contained my promise to find a way of exposing the cult's activities to Imran Qureshi and the National Crime Agency, who might be able to confront a network that local policing had never been equipped to see in full.

The drive back to the Strathdarran district felt different this time. There was no radio chatter about suspected salmon poaching, permit offences or the routine work of a rural constable.

There was no sense of dread as I returned to the place that had destroyed my confidence three years earlier. Instead, I felt something approaching peace, as though I were finally completing a conversation interrupted by trauma and misunderstanding.

The small car park at the start of the trail looked exactly the same. It was empty apart from tyre tracks left by the specialist Police Scotland vehicles that had departed the previous day, after evidence collection concluded on Friday. I shouldered my rucksack and set off along the familiar path, following the route Catriona Vale had used to lead me into her carefully orchestrated trap.

The clearing bore obvious signs of the investigation. Blue-and-white police cordon tape fluttered from Scots pine branches near the place where Elliot Ward's body had been positioned. Deep cuts in the earth marked the spots from which soil and blood samples had been taken for laboratory analysis. Numbered evidence markers remained scattered across the ground, recording the locations of discarded cable ties, fibres, a damaged ritual blade and other physical traces of the violence that had erupted there.

But the investigators had missed details that became obvious once I knew what to look for. Deep claw marks scored the bark of several trees, parallel gouges that could only have been made by something with talons adapted for gripping rather than climbing. Tufts of white fur clung to broken branches at heights no ordinary predator could have reached, confirming both the creature's presence and its extraordinary size.

Most telling of all were the blood patterns where Callum Rusk and Morag Ainsley had died. Dark stains remained where their bodies had fallen, but drag marks led away from the clearing into the deeper woodland. Someone had removed the bodies and other evidence that might have supported the supernatural elements of my account.

I spent twenty minutes examining the scene before following the clearest trail out of the clearing. It was not the marked escape route the creature had shown me three days earlier, but another path leading farther into the Ben Alder hills rather than back towards civilisation.

Trail markers appeared regularly along the route, but they felt different from the emergency signs that had guided me to safety. These were older and more permanent, as though something intelligent had been using the path for years rather than maintaining it for occasional rescues.

The trail climbed steadily through dense Scots pine and spruce woodland, passing warning notices about unstable abandoned lead workings and dangerous underground structures. After two hours of walking, I reached an area where the markers appeared to lead towards natural rock formations. On closer inspection, the dark clefts resolved into cave entrances.

Three openings pierced the mountainside at different levels, connected by natural ledges that something large and sure-footed could negotiate with ease. The lowest entrance showed unmistakable signs of recent use. Repeated passage had worn smooth patches into the rock. Debris had been cleared from the opening, and fresh scratches marked the edges where claws had found purchase during entry and exit.

I checked my equipment one final time before entering the cave system. I had an LED lantern, a backup torch, an emergency whistle and a rope secured to my belt in case I needed to retreat. The letter to Duncan Reid went into the inner pocket of my jacket, protected from damp and accidental loss.

The cave opened into a natural chamber roughly the size of my flat, with several passages leading deeper into the mountain. My lantern revealed details that confirmed the place served as far more than a temporary shelter.

Altered human remains had been arranged in orderly groups along one wall, sorted by victim and approximate date with a precision that suggested methodical organisation rather than random accumulation. I approached cautiously, moving the lantern beam across collections that told a story of years spent tracking the cult and documenting its victims.

Several skulls bore modifications matching descriptions from NCA officer Imran Qureshi's investigation. Holes had been drilled through foreheads, geometric cuts scored the jawbones, and eye sockets had been enlarged with terrible surgical precision.

Personal effects were stored beside the corresponding remains. The sight of them tightened my throat. There was a new walking boot matching the brand Elliot Ward had worn. A woollen jumper carried the distinctive pattern Morag Ainsley's family had described during the search for her eighteen months earlier. Jewellery, spectacles, rucksacks and camping equipment had been preserved from victims whose disappearances had never been resolved by conventional investigations.

This was not a creature's collection of trophies. Everything had been arranged like evidence in a filing system, separated by date and victim with the painstaking care of an intelligence trying to establish a pattern for whoever might eventually understand its significance.

The deeper passages led to other chambers, each serving a particular purpose. One contained camping supplies and premium outdoor equipment in good condition, suggesting the creature maintained provisions for extended journeys through remote country.

Another held books and papers, including newspaper cuttings about missing people and handwritten notes documenting suspected cult movements through the Highlands, the Southern Uplands, Cumbria and Northumberland.

In the deepest chamber I could safely reach, my lantern found what I had both hoped and dreaded to discover.

Duncan Reid's police badge lay on a shelf of stone. It was corroded, but unmistakably his, complete with the distinctive scratch across the number sustained during a domestic abuse call two years before our partnership ended. Beside it rested his old baton, its grip worn smooth where his unusually large hands had held it.

Other police equipment surrounded Duncan's belongings: identification and warrant cards from forces across Scotland and northern England, handcuffs, radios, protective equipment and batons belonging to officers whose disappearances had been attributed to accidents, breakdowns or voluntary departures.

The creature had not merely been hunting members of the cult. It had been gathering evidence connected to every police officer who had encountered the ritual killings, documenting a conspiracy far wider than any single investigation had uncovered. Officers who came too close to the truth had been eliminated. Their equipment and identification had been preserved as evidence of crimes the authorities had never recognised as connected.

I knelt beside Duncan's badge and took out the letter I had written. I placed it carefully next to his baton. The paper looked small and inadequate against the weight of evidence around me, but it contained everything I needed to say: my gratitude, my understanding, and my promise to honour his sacrifice by finding a way to expose the truth.

Movement in the deepest recess of the chamber made me freeze, my hand still resting on the letter. Something large shifted in the darkness beyond the lantern's reach. Claws scraped softly against stone.

Two eyes reflected the light, positioned at the same height I remembered from the clearing. The intelligence behind them was patient and watchful, but the predatory tension that had preceded the attack on the cult members was absent.

The creature advanced with slow, deliberate steps and stopped at the edge of the lantern light. White fur covered massive shoulders and elongated limbs that might once have belonged to someone I had trusted with my life.

Its face remained mostly in shadow, but I could see fragments of features that had once been human. It looked at the letter beside Duncan's badge, then met my eyes. Within its gaze, I recognised something of the partner who had watched my back through two years of dangerous situations.

Recognition passed between us. Whatever the ritual had done, it had not entirely erased our shared history.

The creature raised one huge hand and tilted its head. It was the same familiar gesture Duncan had made whenever I thanked him for covering me during a difficult arrest.

Then it made a sound deep in its throat. The noise began as an animal rumble but struggled towards speech, shaping itself around a syllable that altered vocal cords could no longer properly form.

"Go."

The word was broken and distorted, but its meaning was unmistakable. This was the goodbye Duncan had never been able to give me three years ago.

I nodded. He was releasing me from guilt that had never been mine to carry.

Duncan had made his choice at Strathdarran, surrendering everything human in order to become something capable of fighting enemies conventional policing could not even acknowledge. His disappearance had not been abandonment, nor had it been my failure. It had been a conscious sacrifice made to protect people who would never know what he had given up for them.

"Thank you," I said, my voice carrying everything I could not put into the letter. "For saving me. For everyone you've protected since. For showing me what really happened that night."

The creature tilted its head once more, then stepped backwards into the shadows.

I was left alone with Duncan's evidence and the letter that finally said what I had been unable to say for three years.

I made my way out through the cave system carrying knowledge that would shape everything I did next. Duncan Reid was still fighting the battle we had begun together, but on terms that demanded capabilities beyond human limits. The least I could do was ensure the evidence he had collected reached Imran Qureshi and the National Crime Agency.

The walk back to the marked Police Scotland 4x4 passed quickly. For the first time since the original Strathdarran incident, I felt a sense of completion. I had finally said goodbye properly to the partner who had saved my life twice: first by covering my retreat from the place where everything had gone wrong, and again by becoming something capable of protecting me when ordinary courage and training were not enough.

I had already submitted my three-page initial statement and my resignation through Detective Chief Inspector Alastair Kerr to Police Scotland. Now I had another task. I would copy the notes, maps and photographs from the cave and send the complete archive to Qureshi, giving the cross-border investigation the evidence Duncan had spent three years preserving.

I drove south from Inverness on the A9, leaving the Highlands behind and later joining the motorway network. The morning sun flashed in my mirrors, and the road stretched ahead towards a life I could not yet picture.

In the rear-view mirror, the mountains still held their secrets. But I no longer carried the survivor's guilt born from misunderstanding Duncan's sacrifice. I knew what he had chosen, and I knew what I had to do with the evidence he had left for me.

I kept driving south, resolved to help Qureshi expose the wider network and finish, in whatever way I could, the work Duncan and I had started together.