The Hollow Beneath the Oak

I was twenty-eight years old, and I had not been camping since I was twelve. I agreed to the trip because Oliver Shaw asked me face to face, sitting opposite me in a cafe in Glasgow with both hands wrapped around a mug he was not drinking from. He did not press me. He simply said he was planning a walking holiday and wanted me to come.

The way he said it made refusing feel like a small betrayal. So I said yes.

The plan was five days through a remote part of Galloway Forest Park in Dumfries and Galloway, following a fictionalised local stretch of the Southern Upland Way before leaving the maintained route entirely after the first day. We would begin at the trailhead near Glentrool Visitor Centre and travel north-east into the backcountry.

Oliver had found the route on a wilderness forum and printed the topographic maps himself. He showed me the stack one afternoon, every sheet dense with contour lines and possible campsites circled in red pen.

There were six of us: me, Daniel Mercer; Oliver; Bethan Price; Callum Reid; Imogen Clarke; and Jamie Walsh.

We had all known one another since university. Oliver was moving to Bristol in three weeks. Imogen had relocated to Manchester the previous month. Callum was taking a position in Rotterdam in the autumn.

On the night before we left, we stopped at a brightly lit Tesco petrol station outside Newton Stewart to fill our water bottles and top up the cars. Standing beneath the fluorescent lights, I said aloud that this was probably the last time all six of us would be in the same place.

I meant it as a joke, or something close to one. Nobody laughed, but nobody disagreed.

We met at Glentrool Visitor Centre shortly after nine on the morning of 14 June 2026. The building was small and timber-clad and looked as though it had been there for years. Inside, it smelt of old carpet and pine disinfectant.

A Forestry and Land Scotland ranger sat behind the desk near the entrance. She was a woman in her forties or fifties, with short brown hair streaked with grey beneath a flat-brimmed hat. Her name badge read RUTH HARGREAVES.

Oliver handed her the voluntary backcountry route card he had completed in advance. She read it without speaking, pressed a dated green stamp bearing the Forestry and Land Scotland tree emblem onto both copies, and slid one back across the desk.

"This area has an unusually high number of walkers who fail to check back in," she said.

Oliver nodded, waiting for her to explain.

She studied him for a moment. "People who leave route cards, but whose cars are never collected from the car park."

She spoke without alarm, in the tone of somebody mentioning a fact she had repeated many times and no longer expected to change anything.

"Understood," Oliver said. "We'll be careful."

Ruth told him to leave the duplicate route card clearly visible on the dashboard of his car at the trailhead. The card was not a permit and nobody was legally obliged to complete one. It was simply a safety procedure for walkers entering that remote section, so the ranger desk would know when to expect them back.

Oliver thanked her, and we walked outside.

Nobody mentioned the warning until we were back in the cars.

Imogen asked whether we ought to be worried. Oliver said no. People became lost in forests all the time because they did not prepare properly. We had maps, a compass and enough food for seven days if necessary.

He said it confidently, the way Oliver said most things.

Jamie, sitting in the back of my car, said, "Fail to check back in is a strange way of putting it."

I agreed, but not aloud.

We drove to the nearby trailhead, a gravel car park with room for perhaps fifteen vehicles. Only three others were there. Oliver placed the stamped route card on his dashboard as Ruth had instructed, and then we shouldered our rucksacks and began walking.

The first day was easy. That local stretch of the Southern Upland Way was marked by white thistle waymarkers fixed to trees and posts at regular intervals. The weather was clear, and the ground was dry enough that mud was not a concern. We covered roughly twenty-two kilometres before Oliver called a halt and said we should make camp.

By then it was late afternoon, and the sunlight filtering between the trees had begun to turn gold. We stopped near Penkiln Burn, where clear, cold water ran quickly over smooth stones.

Bethan filtered water while Callum and I put up the tents. Imogen and Jamie gathered fallen wood. Oliver marked our position on the topographic map in pencil and wrote 14 June 2026 beside it.

All six of us were in good spirits. We were loud, joking and filling the forest with the noise of people who had known one another for years.

Jamie imitated the ranger at the visitor centre, repeating, "Fail to check back in," in a flat monotone. Imogen laughed so hard that she had to sit down. Bethan told us about a university camping trip on which someone had forgotten to bring a tent and tried to sleep beneath a tarpaulin that blew away in the middle of the night.

I noticed, with some relief, that the trip already felt like the right decision.

We cooked dehydrated curry with water boiled from the burn and ate sitting on logs that Oliver and Callum had dragged into a rough circle. The conversation drifted as it does when people are tired and comfortable. Jamie talked about his new job. Imogen talked about Manchester. Oliver talked about Bristol and how he did not know anybody there yet, but was looking forward to the move.

I did not say much. I listened.

By the time darkness had settled completely, Bethan and Imogen had gone to their tent, and Callum was brushing his teeth beside the burn. Jamie remained by the fire, prodding it with a stick, while Oliver went through his rucksack and reorganised something.

I crawled into my tent and sleeping bag and lay listening to the others talking outside. Their voices were low and relaxed. The fire crackled.

Somewhere in the distance, an owl called once and fell silent.

I thought about what Ruth Hargreaves had said at the visitor centre.

Walkers who fail to check back in.

It was a strange way to put it.

The maintained route ended on the morning of 15 June, our second day, and Oliver took over the navigation with the topographic maps he had printed at home.

The forest changed after that. It became denser and quieter. The undergrowth rose high enough to brush our thighs, and the canopy shut out most of the sky. I could still see small, scattered patches of blue between the branches, but the light reaching the ground was dim and tinged green.

I noticed that Jamie had gone quiet.

That was unusual. Jamie was normally the loudest person in any group. He filled silence by reflex, the way some people breathed. He told jokes, narrated whatever he was doing and asked questions whose answers he already knew simply to keep a conversation alive.

Since that morning, however, he had walked at the back of the line without speaking.

At first I thought little of it. Everyone has off days. Then I turned to check on him and found him standing still behind us. He was not resting. He was simply staring back the way we had come.

I stopped and waited for him to catch up.

"Are you all right?" I asked.

"Fine. Just tired."

He spoke calmly, without defensiveness.

His face did not look tired. It looked blank.

I nodded and carried on. An hour later, I turned and found him doing the same thing again: standing motionless and looking back.

This time I did not ask.

We made good progress that day. Oliver kept us moving at a steady pace, and by late afternoon we had covered another nineteen kilometres. We camped on flat ground near a dry stream bed.

The air was cool and still. Nobody spoke much. Imogen prepared instant couscous on the camping stove, and we ate it from the pot, passing it round. Jamie took his share and went to his tent without saying goodnight.

Bethan looked at me across the stove and raised her eyebrows. I shrugged. I did not know what to tell her.

The following day, 16 June, was warm. We began before sunrise, but by afternoon the heat had settled among the trees and was not moving. Sweat had soaked through my shirt, and my water bottle was almost empty.

At about three in the afternoon, we crossed a narrow stream. I told the others I needed to stop and refill my bottle through the filter.

Oliver said they would continue and that I could catch them up. I nodded and lowered my rucksack to the ground.

The stream was shallow, perhaps fifteen centimetres deep, and ran over smooth stones. I knelt and submerged the filter intake, watching the clear water pass through the cartridge into my bottle.

It took several minutes. When I stood and brushed the dirt from my knees, I noticed something in the hollow between the roots of a large oak about five metres from our route.

I nearly walked past it. What stopped me was the colour: a patch of faded orange fabric, folded and tucked away, clearly placed rather than dropped.

I stared at it for a moment, then pushed through the undergrowth for a closer look.

A shallow natural depression lay between two of the oak's roots, nearly a metre across. Its bottom had been lined with flat stones fitted together as though somebody had taken time and care over their arrangement. Resting on those stones and filling the hollow were a collection of objects.

A cracked burgundy purse. A green child's wellington boot with a yellow buckle. A folded sheet of notebook paper with handwriting on it. A man's watch with a broken strap. An old folding clasp knife marked with two scratched initials. A weather-stained funeral remembrance card.

There were thirteen objects in all. I counted them twice.

There was no apparent order to them, but they had been arranged. They were not scattered or discarded. They had been placed.

I took out my mobile and photographed the hollow from a distance, fitting the whole thing into the frame. Then I crouched and picked up the purse.

The material was stiff and dry, the sort of dryness that comes from lying outside for a long time. I opened it carefully, half expecting it to split in my hands.

The UK photocard driving licence inside belonged to a woman named Cerys Vaughan. Her address was in Wrexham, Wales, with an LL postcode. The licence had been valid from 2009 until 2019.

Her photograph showed a woman in her late twenties or early thirties, with light brown hair and a neutral expression. It was the unremarkable sort of photograph everybody had on a driving licence.

I photographed the card. Then I put the purse down and picked up the child's wellington boot. It was small and green, with a bright yellow buckle, the sort a four-year-old might wear.

I photographed that as well.

The folded note was next. I took a picture of it but did not unfold it. I did not want to handle it any more than necessary.

I rose, wiped my hands on my walking trousers and put my mobile back in my pocket. Then I shouldered my rucksack and set off after the others.

I caught up with them twenty minutes later. They had stopped on a ridge to drink water and consult the map.

Oliver looked up as I approached.

"Find anything interesting?" he asked.

"Yes. I found something strange."

I took out my mobile and opened the photos. The others gathered round. Imogen leant close to the screen. Jamie remained several metres away.

"What is it?" Bethan asked.

I opened the most recent photograph. It showed the hollow from a distance, the faded orange flysheet visible among the roots. The objects were indistinct enough that no details could be made out.

I swiped to show them the close photograph of Cerys Vaughan's licence.

It was not there.

I stopped and stared at the screen. I swiped backwards, then forwards again. There was a photograph of the purse, but the photograph of the licence had vanished.

I swiped once more.

The photograph of the wellington boot had vanished too.

Only the first image remained: the wide shot of the hollow, blurred and ambiguous.

"What are we looking at?" Imogen asked.

I did not answer. I opened the recently deleted folder. It was empty. I had not deleted anything.

I checked the cloud backup settings. They were enabled. I closed the app and opened it again.

The result was the same. One photograph. All the close images were gone.

"There were more," I said. "I took more photographs. A driving licence. A child's wellington boot. They were here a minute ago."

Oliver took the mobile from me and looked through the photographs. Then he handed it back.

"Perhaps they didn't save."

"They did. I saw them. I checked before I put the mobile away."

"Then where are they?"

I had no answer.

For a moment I stood there holding out the mobile, its screen displaying the single indistinct photograph of the hollow, while nobody spoke.

A few minutes later, I took Oliver back to the oak. He said little as we walked, merely nodding when I told him how far away it was and following me through the undergrowth.

The tree was easy to find. The faded orange tent flysheet remained visible from our route, a fleck of colour that did not belong there.

Oliver crouched beside the hollow and studied the objects for a long time without touching them. Then he picked up the funeral remembrance card and held it close enough to read. His lips moved slightly, although I could not hear the words.

He replaced it gently and picked up the watch. He turned it over in his hands, examining the broken strap and its face. The second hand was frozen at seven. He rubbed his thumb across the glass before returning it to its place.

The clasp knife came next. He lifted it carefully and angled the handle towards the light falling through the canopy. Two initials had been scratched into it, rough and uneven, as though somebody had used another blade.

He traced them with one finger and put the knife back.

He examined the remaining objects in the same way. He opened the cracked burgundy purse but removed nothing. He held the child's green wellington boot by its yellow buckle and turned it slowly in his hand. He left the sheet of notebook paper folded.

He touched every object as though he were trying to understand something beyond what it was.

When he had finished, he sat back on his heels and wiped his hands on his trousers, although there was no dirt on them.

"I don't know what this is," he said at last.

"Neither do I."

"We should mark the coordinates and report it when we get out."

I agreed. Oliver removed the topographic map from his rucksack, and I read him the GPS coordinates from my mobile. He marked the position in pencil, placing a small cross in the middle of forest where no route was shown. Then he folded the map and put it away.

I took three more photographs of the hollow, stepping back each time for a wider view. I wanted to be certain I had something to show when we returned. I did not check whether the photographs had saved. I did not yet want to know.

Oliver stood and brushed the soil from his knees. He looked at the hollow once more, then turned towards our route. I followed him.

Neither of us spoke as we returned to the others.

That night we camped on a ridgeline roughly three kilometres beyond the hollow. The site offered a good clearing and level ground for the tents. Oliver and Callum hung the food bags from a high branch to keep them away from foxes and rodents, while Bethan and I lit the camping stove. Imogen gathered fallen wood, although fires were discouraged that deep in the forest.

Jamie helped with none of it. He sat on a log near his tent, ate an energy bar without speaking and disappeared inside while it was still light.

After we had eaten, Bethan came over and sat beside me on the groundsheet I had spread out. She kept her voice low.

"What did you actually find out there?"

I described the objects: the purse, the driving licence bearing the woman's name, the child's wellington boot, the clasp knife and the remembrance card. I explained how they had been arranged, placed deliberately rather than dropped.

She listened without interrupting.

"That's strange," she said when I had finished.

Callum had been listening from a few metres away. He leant forwards, resting his elbows on his knees.

"Could it be a geocache?" he asked. "Something somebody set up as a game, and then it went wrong?"

"Perhaps."

I did not believe it, but I had nothing better to offer.

Imogen looked up from the stuff sack she was repacking. "Maybe somebody lost the purse, and whoever found it left it there with other lost things. Like a lost-property place."

Nobody answered.

It did not feel right, and I think we all knew it. A lost-property collection would not contain a child's boot, an old clasp knife and a funeral remembrance card together. It would not be concealed five metres from any route in a hollow lined carefully with stones.

The conversation faded after that.

Oliver sat on a rock at the far side of the camp, his back to us as he looked out across the ridgeline. I could not see his face.

After a while, Bethan went to her tent and Callum followed. Imogen remained outside a little longer, writing in a notebook by the light of her head torch, before zipping herself into her tent as well.

I sat outside until it was fully dark.

I could hear Jamie moving in his tent, his sleeping bag rustling, but he did not emerge. Oliver remained on the rock. I considered going over to speak to him, but did not.

Eventually I entered my tent and lay on top of my sleeping bag.

I had taken the folded notebook paper from the hollow before we left.

I do not know why. I had not intended to take anything, but while Oliver was marking the coordinates, I had reached into the hollow, slipped the paper into my jacket pocket and said nothing. Nobody had seen me.

Now I removed it and unfolded it beneath the beam of my head torch.

The paper was cheap, the sort torn from a spiral notebook, and its edges were frayed. Written in blue ink down the left side was a list of names.

There were eleven, one beneath another, every name written in a different hand.

Some were printed and some written in joined-up script. The pens changed from line to line: dark blue, black, blue again, then a paler black that had faded with age. The final name was in pencil, lighter than all the others, its letters smaller as though the person writing it had tried not to use too much space.

I read the list twice. None of the names meant anything to me. I recognised no one.

Yet the longer I studied the paper, the more certain I became that I understood what I was seeing.

These were not the names of people who had left the objects in the hollow. They were names added by those who had passed through before.

One name at a time. Different people, different handwriting, different pens. Eleven names written over an unknown number of years by eleven different people.

I folded the paper and rested it on my chest.

The tent fabric stirred in the breeze, and I heard the trees shifting along the ridge. Jamie coughed once inside his tent. Oliver's tent zip opened and closed.

After that, everything was quiet.

I lay in the darkness with the paper on my chest and those eleven names moving through my mind. I did not close my eyes.

I left camp before first light on the morning of 17 June, while the others were still asleep.

I told myself I was merely going to inspect the hollow once more. I needed to be certain I had not imagined the arrangement of the objects or misunderstood the handwritten list.

The truth was that I could not stop thinking about it.

The purse containing Cerys Vaughan's licence. The child's wellington boot. The funeral remembrance card. All of it resting in that hollow beneath the roots like an altar or a memorial to people who were gone.

I used my head torch to navigate back towards the oak. The forest possessed that peculiar silence before dawn, when even the birds had not begun, and my walking boots sounded too loud against the leaf litter.

When I reached the tree, I knelt beside the hollow and pulled aside the faded orange flysheet.

The objects remained where they had been: the cracked burgundy purse, the green child's wellington boot with its yellow buckle, the old clasp knife with two scratched initials and everything else I had photographed the day before.

Something new had been placed in the centre, directly on top of the collection.

My driving licence.

I picked it up.

It bore my name, Daniel Mercer, my photograph and my home address in Glasgow, complete with the correct postcode. The validity dates were correct. The surface and holograms looked identical to those on the card in my wallet.

I turned it over.

The signature was mine: the same distinctive linked D-M I had used since school.

I reached into my back pocket and took out my wallet. My hands had begun to shake, but I managed to open it and check the slot where I kept my licence.

It was still there.

I held one card in each hand, moving my gaze between them in the beam of my head torch.

They were identical. The same photograph. The same Glasgow address and postcode. The same validity dates. The same linked D-M signature.

There was no visible difference between them. Provenance was the only thing separating one card from the other, and as I stared at them I became uncertain even of that. I could no longer tell which one ought to be real.

I had not returned to the hollow since the previous afternoon. I had remained at camp all night. I had not put that card there.

I slipped the licence from the hollow into my jacket pocket and stood. I did not touch anything else or replace the orange flysheet over the objects.

I simply turned and hurried back to camp, moving faster than I needed to, the beam of my head torch jolting across the ground before me.

When I returned, Oliver was still inside his sleeping bag, but his eyes were open and fixed on the roof of his tent. I unzipped the flysheet and crouched beside him.

"Oliver," I said. "I need to show you something."

He sat up slowly and rubbed his face. He did not ask why I had left camp or where I had gone. He only looked at me and waited.

I took out both licences and handed them to him.

He raised them towards the grey daylight filtering through the tent. Dawn was brightening outside, and there was enough light to see clearly. He examined the first card, then the second, then returned to the first. He turned them over and compared the signatures. He held them side by side and studied the photographs.

For a long time, he said nothing.

"They're the same," he said at last.

"I know."

"Where did you find this one?"

He lifted one of the cards, although by then I was not entirely certain it was the one I had found.

"In the hollow, lying on top of everything else. I went back this morning, and it was simply there."

Oliver continued staring at the licences. His expression was calm, but it was the wrong sort of calm, as though maintaining it required considerable effort.

"Your wallet was in your pocket all night?"

"Yes."

"You didn't take your licence out for any reason?"

"No."

He returned both cards. I placed one in my wallet and the other in my jacket pocket.

I still could not tell them apart.

Oliver fell silent again. He looked past me in the direction of the hollow, although the trees were too dense and we were too far away to see it.

"I want to go back there," he said quietly.

I looked at him sitting with his sleeping bag gathered in his lap, while the morning light turned everything grey and flat.

"All right," I said.

I led Oliver back to the oak. He spoke little on the way and followed me through the undergrowth with the same composed expression he had worn since seeing the impossible licence.

The licence that belonged to me but should not have existed.

When we arrived, Oliver crouched beside the hollow without hesitation, as though he had intended to do so all along.

He examined the collection piece by piece, slowly and methodically, like somebody reading something he had been given time to consider. He lifted the child's green wellington boot by its yellow buckle and turned it in his hands, studying it from several angles. Then he put it back precisely where it had been.

He read the funeral remembrance card next, his lips moving faintly over the words, and returned that too.

I watched him open the cracked burgundy purse. He drew out Cerys Vaughan's driving licence, with its Wrexham address and 2009 validity date, and stared at it for a long time.

His expression did not change.

He did not look as though he were trying to solve anything. He looked at the card the way a person looks at something they already understand.

Then he reached into his back pocket and removed his own wallet.

I knew what he intended before he moved. I should have caught his arm and stopped him, but I remained where I was.

I watched him place the wallet gently in the centre of the hollow, on top of the other objects.

His hands were steady. He was not shaking or crying. He simply set it down as though returning something to its proper place.

Then he stood and wiped his palms against his walking trousers.

When he looked at me, he did not seem frightened. He seemed settled.

It was the expression of somebody who had reached a decision long ago and had finally acted upon it.

"What are you doing?" I asked.

My voice was louder than I intended.

"I don't know how to explain it," Oliver said.

He sounded calm. He was not confused, frightened or defensive. He was merely stating a fact.

"It feels right," he added. "In a way I can't argue with."

He said it as one might describe being tired: not distressed, simply certain.

I caught his arm hard enough that he glanced down at my hand gripping his jacket.

"We're leaving. Right now. All six of us are turning round and going back to the car park."

Oliver looked at me and nodded.

"All right."

There was no resistance in him. He spoke in the same agreeable, settled tone he had used since placing his wallet in the hollow.

I searched his face for some visible sign that he was no longer himself. There was no vacancy, fear or agitation. He merely looked like a person who had completed something.

That was more disturbing than any other expression could have been.

I tightened my grip on his arm. "We're going now."

We returned to camp quickly, Oliver following in silence.

The others were sitting near the tents. Bethan was filling her water bottle. Callum had unfolded his map and was studying it with the concentration people affect when they need something to occupy their hands. Imogen looked up as we approached. Jamie was crouched beside his rucksack, checking the straps.

I told them we were cutting the trip short and leaving immediately.

Imogen asked what I had found.

"I'll explain later."

She asked again, and I gave her the same answer.

Bethan stood and began rolling her sleeping bag without another question. Callum folded his map and tucked it into his jacket pocket. Jamie said nothing. He was already packing.

We broke camp in forty minutes.

Nobody argued or asked me to reconsider.

I think all of them had sensed something wrong since the previous day, as one senses an approaching storm before the sky changes. Jamie had been silent for two days. Oliver had become unnaturally calm. I had begun checking behind me every few minutes without meaning to.

Whatever I had discovered beneath the oak was merely the thing that gave us permission to acknowledge what we already knew.

I took the lead. Oliver had given me his compass the previous night, and I carried the topographic map folded inside my jacket. I checked both every few hundred metres and kept us travelling south-west towards the maintained route.

The forest looked exactly as it had for the previous three days. The trees were the same. The undergrowth remained dense, green and tangled in precisely the same way as on our journey in.

I saw nothing moving in the canopy. I heard nothing following us. Even so, I walked quickly, and the others matched my pace.

By mid-afternoon we had covered about thirteen kilometres. I stopped, opened the map across one knee and calculated how far remained.

At our current pace, the answer was more than a day. We had perhaps another twenty hours of walking ahead of us if we did not stop. I checked the calculation twice.

The sun was already low. Darkness would come within a few hours.

If we camped, we might reach the car park by the following evening. If we continued through the night, we could be out by dawn.

I made the decision without consulting anybody. I folded the map, stood and told them that I intended to walk through the night. Anyone who wanted to stop and camp could do so.

I presented it as a fact, not a question.

"We should all stop," Jamie said quietly, in the same subdued voice he had used for two days.

Bethan looked at me. "I'm walking with you."

Callum said the same. Imogen nodded and tightened the straps of her rucksack.

Oliver said he intended to camp there and would meet us back at the car park the following day.

I stared at him.

He stood with his rucksack still on and his hands in his jacket pockets, his expression composed and settled. From his left pocket protruded the edge of his wallet.

His own wallet.

The wallet I had watched him place in the hollow that morning. I had not seen him retrieve it. I had watched him stand and walk away with me while it remained among the objects.

Yet an identical wallet was now back in his pocket.

I did not know whether it was the same one. I did not know whether that mattered.

"I'll stay as well," Jamie said.

He did not look at any of us. He was staring north-east, back in the direction of the oak.

His choice frightened me, but it also made a terrible kind of sense. His silence, the way he had repeatedly stopped to gaze back along our route, and the blankness that had settled over his face no longer seemed like tiredness.

I tried to persuade him to come with us. He merely shook his head.

"I'm staying with Oliver."

Oliver showed no surprise, as though he had already known.

That was how the six of us became two groups: Oliver and Jamie remaining to make camp, while Callum, Bethan, Imogen and I prepared to continue through the night.

I told Oliver and Jamie to be careful.

Oliver said they would.

He said it the way somebody says goodbye when they know it is the last time.

I wanted to ask what he was thinking. I wanted to demand an explanation for the wallet beneath the oak and the identical one in his pocket. I wanted to seize both him and Jamie and tell them they were coming with us whether they wished to or not.

I did none of those things.

I stood there, searching for words that might change their minds, and found none.

Then I turned and began walking. Callum fell in behind me, followed by Bethan and then Imogen.

After the first hundred metres, I did not look back.

I told myself Oliver and Jamie would be fine. They would make camp, sleep through the night, walk out in the morning and meet us at the car park.

I repeated it as I walked, and never once believed it.

The sun fell below the ridgeline, and the forest dimmed. I checked the compass against the map and kept us moving south-west. Behind me, Callum, Bethan and Imogen walked in a silent line, their footsteps steady.

The sounds of Oliver and Jamie setting down their rucksacks faded behind us and did not return.

I walked into the darkening forest without looking back, the compass in one hand and the folded topographic map in the other.

The four of us walked through the night. I led with the compass and map, checking them every few minutes beneath the beam of Bethan's head torch. Callum followed me, with Bethan behind him and Imogen at the rear. Nobody spoke unless necessary.

The forest was dark in a way that felt deliberate. The beam reached only six metres or so before the trees swallowed it.

Around midnight, Callum's head torch failed. He shook it and pressed the button several times, but nothing happened. After that, we relied on Bethan's, passing it forwards whenever somebody needed to study the map or see their footing.

Its batteries were weakening. The light grew yellower and dimmer with every hour.

I kept my eyes on the compass.

We were heading south-west, retracing the route we had followed over the previous three days. The maintained section of the Southern Upland Way lay roughly twenty-two kilometres from where we had left Oliver and Jamie. I told myself we would reach it by dawn if we kept moving.

I did not allow myself to consider what would happen if we failed.

Imogen asked once whether we should rest.

I said no.

She did not ask again.

The forest was silent. I had expected it to feel hostile or distorted, as it had when I hurried back from the hollow that morning.

It did not.

It merely felt empty.

The trees were the same trees. The undergrowth was the same undergrowth.

Nothing followed us that I could hear.

Nothing moved in the darkness beyond the reach of our head torches. It was only a forest, and we were only four people walking through it.

Near dawn, the path widened and the undergrowth began to thin. I recognised the marker on the tree ahead before Bethan's torch beam reached it.

A white thistle waymarker, painted on the bark. Faded, but unmistakable. The maintained stretch of the Southern Upland Way.

We had made it.

Bethan released a breath I had not realised she was holding. Callum murmured something that might have been a thank you, or might have been nothing at all. Imogen stopped and stared at the marker as if she did not trust it. I kept moving.

The trailhead was about six kilometres away. I told them we were nearly there.

The sun rose while we walked the final stretch. Light filtered through the canopy in narrow beams, illuminating patches of the path ahead. For the first time in hours, I could see clearly without my head torch.

The forest looked normal. It looked like somewhere people went walking. It looked like a place I might have entered on any other weekend and left again without incident.

My car was still in the car park when we reached it. I had known it would be, but the sight of it loosened something in my chest that I had not realised was clenched. I unlocked it and threw my rucksack onto the back seat.

Callum, Bethan and Imogen did the same with theirs. I drove them to their cars one by one, pulling up beside each vehicle and waiting while they got out. Nobody said much.

Bethan thanked me for getting us out.

Imogen asked if I was going to be all right. I said I was fine.

Callum only nodded and closed the door.

I did not wait for Oliver. I thought about it. I sat in the car park for perhaps thirty seconds with the engine running, staring at the entrance to the trail.

Then I put the car into gear and drove south-west on the A714 towards Newton Stewart.

I told myself Oliver would be fine. I told myself he would walk out later that day, drive home and send a message saying everything was all right. I told myself Jamie would come with him. I kept repeating those things for the next hour and a half.

I did not stop until I needed petrol. There was a Gulf petrol station near Girvan, just off the A77, and I pulled in beside one of the pumps. My hands were shaking when I switched off the engine. I had not noticed until then.

I filled the tank and went inside to pay. The cashier was a lad of about twenty, and he barely looked at me as he processed the bank card I took from my wallet.

I walked back to the car and reached into my jacket for the wallet.

It was not there.

I checked my back pocket. Nothing. I searched the centre console, the cup holder and the floor of the passenger side. I checked the back seat where I had thrown my rucksack and unzipped every pocket.

My wallet was gone.

I stood beneath the petrol station lights, trying to remember the last time I had taken it out. The cashier had just processed my card. That meant I had carried the wallet into the shop. I must have taken the bank card from it at the counter.

But I could not remember pulling it from my jacket. I could not remember holding it. I tried to picture myself reaching into my pocket and handing over the card, but the memory would not form.

I checked the breast pocket of my jacket for my mobile and felt something else instead.

Paper. Stiff and glossy.

I pulled it out.

It was a standard 10 x 15 cm photographic print, with straight, clean edges and a faintly glossy surface, the sort produced by a photo lab or a home printer.

I did not own a printer. I had not printed anything. I had not put this in my pocket.

The photograph showed the hollow from above.

The viewpoint was high, perhaps five or six metres from the ground, as if someone had climbed a tree or flown a drone above us, but the perspective looked wrong for either. The hollow occupied the centre of the frame, clearly visible among the roots of the oak. The thirteen objects inside had been arranged exactly as I remembered them.

My wallet lay on top of the pile in the middle.

In the background, partly concealed by branches, a figure was walking away from the hollow.

The figure wore my jacket, the same jacket I was wearing now. His face was turned slightly to one side, revealing just enough of his profile to identify him.

It was me.

The photograph had been taken after I left the hollow on the morning of 17 June 2026.

I had been alone when I left. I had been certain of it. I had looked back twice as I walked away, checking that nobody was following me, and there had been no one. Nobody standing above me. Nobody among the trees. Nobody holding a camera.

I sat in the car for a long time with the photograph face up on the passenger seat. I stared at the hollow, at the wallet and at the figure in my jacket. At myself walking away from something I had already left behind.

Then I turned the photograph face down.

I did not want to see it any more.

I took out my mobile and rang Oliver. It rang six times before going to voicemail. I ended the call and tried again.

Six rings. Voicemail.

I hung up.

I drove the rest of the way home to Glasgow, following the A77 and then the M77. The road passed through towns I had seen a hundred times before. The photograph remained face down on the passenger seat. I did not touch it. I did not look at it.

I kept my eyes on the road and my hands on the wheel. I tried not to think about my wallet lying on top of the pile in the hollow, or Oliver crouching beside it with that settled expression on his face, or Jamie sitting in silence beside him. I tried not to think about the fact that my wallet was gone and I could not remember the last moment when I had truly seen it.

I pulled up outside my home in Glasgow shortly before noon. The building looked exactly as it always did. The light above the entrance was still on from when I had left on 14 June. The letterbox was crammed with post.

I switched off the engine and sat there with the photograph face down on the seat beside me while Oliver's phone rang six times in my ear and went to voicemail again.

I rang Oliver twice more that evening. Both calls rang six times before going to voicemail. On the second attempt, I left a message asking him to ring me when he had the chance. I tried to sound casual, as though I was not worried.

Then I rang Callum.

"Have you heard from Oliver?" I asked.

"No," Callum said. "I thought he and Jamie had probably driven home and gone to sleep. Why?"

"Just checking. Making sure everyone got out all right."

Callum was silent for a moment. I wondered whether he could hear something in my voice that I was trying to hide. Then he said he would let me know if either of them got in touch, and we ended the call.

I did not tell Callum about the photograph. I did not tell anyone.

I took it from my jacket pocket and examined it once more beneath the kitchen light. The image was perfectly clear: the hollow, the objects, my wallet on top of the pile and, in the background, partly hidden by branches, a figure in my jacket walking away along the path.

I placed the photograph face down in the kitchen drawer beside the cutlery tray and closed it.

I did not open the drawer again that night.

Three days passed. I rang Oliver every morning. Every call went to voicemail.

On the second day, I drove to a supermarket and bought things I did not need, simply so that I would not have to sit at home waiting for my mobile to ring.

On the third day, 20 June 2026, Callum rang me first.

"I'm driving back to Glentrool," he said. "I want to check whether Oliver's car is still there."

"All right."

"I'll ring you when I get there."

I sat at my kitchen table and waited. The drawer containing the photograph was less than a metre away. I thought about opening it.

I did not.

Callum rang two hours later from the car park near the Glentrool trailhead.

"His car is still here," he said. "There's no note on the windscreen. I checked at the visitor centre. They looked at the route card and said neither Oliver nor Jamie had checked back in at the ranger desk."

Something cold settled in my chest.

"What did the ranger say?"

"She said she'd contact Police Scotland and file a missing-person report. I'm going to speak to her properly now."

"All right."

Callum ended the call. I remained at the table without moving.

I thought about the last thing Oliver had said when I told him to be careful. He had said he would.

He had said it the way a person says goodbye. Not as though he were staying behind for a little while, but as though he were leaving for good.

I thought about Jamie's silence, and the way he had changed after we found the hollow. I thought about his calm decision to remain with Oliver while the four of us carried on through the night.

Then I thought about the list of eleven names I had found among the objects. They had been written by different hands, using different pens, with the final entry made in pencil, as though each name had been added by a different person at a different time.

I had memorised them without meaning to. I could still see the writing in my mind, crossing folds where the paper had been opened and closed too many times.

I wondered whether my name had been on that list.

I wondered whether it was there now.

The drawer was less than a metre away. I did not open it.

Callum rang again twenty minutes later.

"I spoke to the ranger," he said. "It's the same woman who stamped our route card when we set off. Ruth Hargreaves. She pulled our paperwork and confirmed that Oliver and Jamie never checked back in. Police Scotland have recorded the report, and they're asking the local mountain rescue team to assist with the search."

"What happens now?" I asked.

"They'll send trained volunteers into the forest. She said it might take a little while to organise." Callum hesitated. "She didn't seem... I don't know. She didn't seem surprised."

I said nothing.

"Daniel?"

"Yes?"

"Are you all right?"

"Yes," I said. "Thanks for going back to check."

"Of course. I'll let you know if I hear anything."

We ended the call.

I sat at the table for a long time afterwards. The light through the window shifted as the sun crossed the sky, but I did not get up.

I thought about Oliver crouching beside the hollow and examining the objects one by one, with the careful attention of someone reading a message he had been given time to consider. I thought about him taking his wallet from his pocket and laying it gently in the centre of the pile. I thought about the identical wallet I had later seen in his pocket, and how I could no longer be certain whether he had retrieved the first one or whether the hollow had given him another.

I thought about his face when he stood. He had not looked frightened.

He had looked settled.

The drawer containing the photograph remained closed. I did not take it out. I did not look at it again. I simply sat there until the light in the room turned orange, then grey, then disappeared.

At the Forestry and Land Scotland visitor centre at Glentrool, Ruth Hargreaves took Oliver Shaw's voluntary backcountry route card from the file and wrote a note in the margin with a blue pen.

Did not return - 20 June 2026.

She initialled the entry and processed the missing-person report in the same manner as the forty previous missing route cards she had handled over the last ten years.

Her expression was blank. Her hand moved across the paper without hesitation. When she had finished, she returned the card to the file and closed the drawer.

Then she looked up at the desk. A group of four walkers stood waiting with their rucksacks at their feet and a topographic map spread across the counter.

"We're doing the Loch Trool circuit," one of them said. "Five days, four nights."

Ruth nodded. She took a blank voluntary route card from the stack beside her and entered the dates, the trailhead and the number of people in the party. She stamped it with the dated green route-card stamp bearing the Forestry and Land Scotland tree emblem.

The stamp struck the paper with a sharp, clean sound.

She made a duplicate of the route card and slid both copies across the desk.

"Leave this copy somewhere visible on your dashboard," she said. Then, in the same flat, unhurried voice she had used when Oliver's group stood before her six days earlier, she added, "This area has an unusually high number of walkers who fail to check back in."

"You'll want to check in against the route card at the ranger desk when you finish your walking holiday."

The walker at the front of the group took the cards, folded one into his jacket pocket and kept the duplicate in his hand.

"Thanks," he said.

Ruth's hand returned to the counter and rested beside the stack of blank route cards. Her expression did not change. She watched the group as she had watched Oliver Shaw's group six days earlier, and as she would watch the next group tomorrow, and the one after that.

Nothing had changed for her.

Nothing ever did.

The walkers picked up their rucksacks and left through the front door. The bell above it chimed once as the door swung shut.

Ruth Hargreaves sat behind the desk and waited for the next group to arrive.