The Twelve-Minute Silence

I've been cleaning West Argyll General Hospital for seven years now. Night shift, which means I start at 21:30 and work until dawn most days. The place is quiet after visiting hours end, with only the hum of fluorescent lights and the squeak of my trolley wheels on the lino. I know every corridor, every supply cupboard, every strange stain that refuses to come out no matter what I use.

Oban shuts down at midnight. I mean properly shuts down, not in the ordinary way where pubs close and people go home. This is different. At exactly 00:07 every night, the whole town goes dark and still for twelve minutes.

Engines cut out. Lights die. Everything stops. Most people treat it like weather, just another part of living here. They plan around it.

Get home before midnight or wait it out wherever you are. Don't talk about it much. I've heard perhaps three genuine conversations about the silence in all my time here, and two of those were people arguing about whether it began at 00:06 or 00:07.

It's 00:07. I'm certain of that.

The hospital doesn't stop, obviously. You can't switch off ventilators or heart monitors because the town has its peculiar nightly event. But there are rules for staff.

Moira Hargreaves made that clear during my first week. Moira runs estates and facilities. She's the one who hired me, checks my rotas and leaves notes whenever I miss a patch. She's in her fifties, with grey hair cut into a sharp bob, and always wears cardigans that look expensive.

She doesn't smile much. I suppose she doesn't need to. On the first Monday I worked, she called me into her office shortly before my 21:30 shift began.

"You'll need to know about the silence," she said.

There was no preamble and no attempt to find out whether I already knew. She simply stated it. I nodded. I'd been living in Oban for three years by then. I knew.

"Between 00:07 and 00:19, you stay in the basement," she said. "Lower level, beyond the laundry. There's a staff room with a sofa and a kettle. You wait there."

"All right."

"Not the ground floor. Not any of the upper floors. The basement."

She looked at me hard, making certain it had sunk in.

"If you're on your rounds, watch the time. Be downstairs by 00:05 at the latest."

"What happens if I'm not?"

Her expression didn't change.

"Nothing good."

That was it. She handed me my NHS photo pass and a map of the building with my cleaning route marked in yellow. I've followed the rule ever since. I plan every night around it.

I begin on the sixth floor at 21:30 and work my way down, keeping to the same top-to-bottom routine. By 23:30, I'm usually finishing the ground floor. By midnight, I'm already in the basement with my flask of coffee and whatever book I've brought that week. I sit on the brown sofa that smells faintly of mildew, and I wait.

The lights remain on down there during the silence. I don't know why. Perhaps it's the generators. Perhaps it's something else. I've never asked, but I can feel the moment 00:07 arrives.

The air changes. It grows thinner and colder. The hum of the building shifts to another pitch. Then, twelve minutes later, everything snaps back and I finish my shift.

I'm good with routines. Good at keeping my head down and getting on with the work.

I don't test things any more.

I used to.

I was sixteen the first time I truly felt the silence, twelve years before the generator incident. I'd been living in Oban for perhaps six months, staying with my aunt after my mum died.

She had a rented place near the town centre, one of those narrow two-storey buildings with aluminium cladding and a covered parking space that sagged at one corner. She worked as a receptionist at a small hotel on the seafront and heard most of the town's gossip.

Jamie Kerr lived across the landing. Jamie was my age, skinny, and wore woollen caps even in warm weather. He rode a battered BMX everywhere and had the restless energy some teenagers get when they're bored and have nowhere to put it.

We weren't exactly close, but we spent time together. We played video games at his place and walked to the petrol-station shop for cans of energy drink and crisps. That sort of thing.

One damp night in early October, we went out to the Glencruitten woodland path. The entrance lay off the A85, beyond the turning for the harbour.

During the day, it was fine. Families, runners, people walking dogs. At night, it was different. Darker.

The spruce crowded close to the path, and every small stream sounded louder than it should. We'd gone because Jamie said he wanted to explore an abandoned forestry track that branched away halfway along. I don't know why I went with him. Probably because I had nothing better to do.

We hadn't brought torches. Jamie said we wouldn't need them, that our eyes would adjust. It was stupid, but I didn't argue. We walked for perhaps an hour, following the path by moonlight and the faint glow of Oban behind us.

The forestry track was overgrown, little more than two ruts with weeds and wet bracken growing between them. We kicked through fallen spruce cones and talked about nothing. School, I think. A girl Jamie fancied.

I don't really remember.

What I remember is checking my mobile and seeing 23:58.

"We should head back," I said.

Jamie shrugged.

"We've got time."

"Not much."

"It's fine. We're about fifteen minutes from the road."

I didn't think we were. The path had more bends than I remembered, and we'd gone farther down the forestry track than I'd realised.

But Jamie was already walking, so I followed.

By 00:03, we were still among the trees. The track brought us out onto a gravel access road I didn't recognise. It curved towards what I hoped was the A85.

There were no streetlights and no houses, only gravel and spruce pressing in from either side. Jamie was walking faster now. He wasn't saying anything, but I could tell he was nervous.

So was I.

My aunt had been clear about the silence.

Be indoors. Lock the doors. Don't go out.

She'd said it the same way Moira Hargreaves would say it to me years later. Flat and certain, with no room for questions.

00:05.

00:06.

I could see my breath. It hadn't been particularly cold before, but it was now. The sort of cold that made no sense, even on a damp October night.

At 00:07, I heard it before I saw anything.

An engine cut out. There was a car somewhere, perhaps on the A85, and its sound simply stopped. It didn't fade into the distance. It stopped.

Then the hum of the electrical lines overhead vanished, and the glow from Oban disappeared all at once. The only light left was the moon.

It was almost full, bright enough for me to see the gravel and the edges of the trees, but the shadows were wrong. Thicker. They didn't move as shadows should.

Jamie stopped walking.

So did I.

"Do you hear that?" he whispered.

I couldn't hear anything. That was the problem.

No wind. No running water. No insects. The whole night had become thin, hollow and empty.

Then something shifted between the trees to our left.

I turned my head towards it, or tried to, but I couldn't look straight at it. My eyes slid away as though I were trying to focus on a speck floating across my vision. I could see movement at the edge of my sight, a shape that didn't belong, but the moment I turned to face it there was nothing.

Only trees.

Except I knew something was there.

My chest tightened. I wanted to run, but my legs wouldn't move. Jamie stood frozen beside me, breathing quickly and shallowly.

The shape moved again. Closer.

I still couldn't see it directly. It was tall, I thought, taller than a person, and it didn't walk. It simply shifted.

One moment it was farther away. The next it was closer, as if frames were missing from a recording.

I kept my eyes forward and stopped trying to look at it. That seemed important somehow. Safer.

I couldn't look at it directly. That was the thing. The only way to follow it was not to try.

I stared ahead and a little to the right, watching the margins of my vision.

It's how you see dim stars. Look straight at them and they disappear. Look away and they're there.

The shape moved again. Closer, I think.

It was difficult to tell. It didn't cross distance in the ordinary way. It occupied one place, then another, skipping all the space between.

Jamie made a sound. Not a word, only a choked noise in his throat.

Then he ran.

I heard his trainers strike the gravel, fast and stumbling at first, then settling into a rhythm. The sound grew quieter. He didn't shout for me or say anything. He simply ran.

I stood there alone.

The shape was still among the trees to my left. I could feel it more clearly than I could see it. The air around it felt wrong.

Heavier, perhaps. Or thinner. I don't know. Both.

I wanted to run as well. Every part of me wanted to race after Jamie, catch him and avoid being left alone with that thing.

But the silence bothered me. The complete absence of sound, apart from Jamie's fading footsteps, made running feel like the wrong thing to do.

As though speed would attract attention.

As though movement were permission.

So I walked.

I kept my eyes forward and slightly to the right. I didn't turn towards the place where the shape had been.

I didn't look back.

I walked at a normal pace, the same speed I'd use going home from school. My legs felt stiff. My chest was tight. But I kept the rhythm steady.

The gravel crunched beneath my trainers. It was the only sound left.

Jamie's footsteps had gone. The thing among the trees made no noise. It didn't breathe, disturb branches or break twigs.

It was simply there.

And then perhaps it wasn't.

I couldn't tell. I didn't look to check.

I walked for what felt like twenty minutes but was probably five. Time stretched strangely. The road curved and I recognised the bend. The entrance to the path wasn't far away. Perhaps another few minutes.

At 00:19, the air changed.

I felt it happen. The cold weakened. The pressure in my ears released with a soft pop. Somewhere in the distance, a car engine turned over.

The electrical hum returned to the power lines. Oban's glow reappeared along the horizon.

I still didn't run.

I reached the entrance at perhaps 00:25. The small parking area was empty.

Jamie's BMX was gone. He'd already ridden home. My own bike remained where I'd dropped it, lying on its side in the gravel. I picked it up and walked it to the road.

Then I rode home. Slowly.

My legs were shaking, but I kept my pace normal. The streetlights were on. Most of them, anyway.

The last one on our block, the one nearest my aunt's place, was dark. It sometimes failed during the silence and didn't always come back immediately.

Jamie lived three doors away. His bedroom light was off.

He was inside already. Safe.

Probably.

I left my bike beneath the sagging shelter and went in through the side door. My aunt was asleep. I didn't wake her. I wouldn't have known what to say.

I didn't sleep that night.

The next morning at secondary school, I saw Jamie in the corridor before our first lesson. His face was scratched. Not just one or two marks.

His entire left cheek and the side of his jaw were raw. Red lines covered the skin. Some were deep enough to have scabbed already. A few were still weeping.

He was standing at his locker. I went over.

"What happened?" I asked.

He didn't look at me. He kept searching through the locker and moving books about.

"Nothing."

"Your face."

"I fell."

"Off your bike?"

The scratches didn't resemble grazes from a road. They were thin. Deliberate. Too even.

"When?"

"Last night. Riding home."

"After the path?"

He stopped moving. His hand rested on a maths textbook, but he didn't take it out.

"Yeah."

"You ran. I didn't see you fall."

"It was afterwards. On the road."

He still wouldn't look at me.

"Jamie."

"I don't want to talk about it."

"Did it..."

"I said I don't want to talk about it."

His voice rose. A couple of people in the corridor glanced across. Jamie snatched out his maths book, slammed the locker and walked away.

I tried again at lunch.

Jamie was sitting with some lads who rode BMX bikes and skateboards, near the vending machines in the dining hall. I sat opposite him.

"Hey."

He looked at me. His eyes were tired. He probably hadn't slept either.

"We should talk about what happened," I said quietly.

The others weren't paying attention, but I didn't want them to hear.

"Nothing happened," Jamie said.

"Something did."

"I fell off my bike. That's it."

"The thing in the woods."

"There was nothing in the woods."

One of the other boys, Ross McKay, looked over.

"What woods?"

"Nowhere," Jamie said quickly. "He's talking about nothing."

"The Glencruitten path," I said. "Last night. We were out there during..."

Jamie stood so abruptly that his chair scraped across the lino.

"Shut up," he said.

I blinked. Jamie didn't speak to me like that.

"I'm only saying we should..."

"I said shut up."

He grabbed his bag and left the dining hall. Ross and the others stared at me.

"What's wrong with him?" Ross asked.

I didn't answer.

I tried once more after school. I caught Jamie in the car park before he could board the council-contracted school coach.

"I'm not letting this go," I said.

"You need to."

"Why?"

"Because nothing happened. I fell. You went home. That's it."

"Your face."

"I told you. I fell off my bike."

A teacher walked past. Mrs Beaton, the English teacher. She glanced at Jamie's face, then at me, and carried on.

She didn't ask whether he was all right. She didn't stop.

That felt wrong.

"Did you tell anyone?" I asked. "About the thing we saw?"

"We didn't see anything."

"Jamie."

"Stop."

His voice cracked. He looked frightened rather than angry.

"Just stop talking about it," he said. "Please."

The coach arrived. Jamie climbed aboard. I stood there and watched it leave.

That evening, my aunt asked whether I'd heard about Jamie Kerr.

We were eating dinner, spaghetti from a packet.

"What about him?" I asked.

"He had an accident last night. Fell off his bike rather badly."

"Yeah. I saw."

"His mum says he's fine. Just some scrapes."

I pushed the spaghetti around my plate.

"Where did he fall?"

"I don't know. Riding home, I think."

"From where?"

She looked at me.

"Why?"

"Just wondering."

"Were you with him?"

"No."

I don't know why I lied. The word simply came out.

"Good," she said. "You know the rules. You don't go out during the silence."

"I know."

She returned to her meal and didn't ask anything else.

I raised it once more a week later, during a modern studies lesson. We had a project about local culture, and I thought I might include the silence. Ask questions. Find answers that made sense.

I put up my hand and asked Mr Douglas whether anyone knew why the silence happened.

The classroom went quiet. Not the normal sort of quiet. The kind where everyone seems to stop breathing.

Mr Douglas looked at me for a long moment.

"That isn't part of the curriculum," he said.

"I know, but it happens every night. I thought perhaps..."

"It isn't part of the curriculum," he repeated, more slowly. "Choose another subject."

"But..."

"Another subject, Callum."

There was an edge to his voice I'd never heard before. He was usually relaxed. He told bad jokes and let us eat snacks in class.

I didn't mention it again.

That was when I began noticing how adults behaved whenever anyone spoke about the silence. They didn't merely avoid the subject. They ended the conversation immediately, as though talking about it broke a rule nobody had written down but everyone understood.

At the supermarket, I heard two women speaking beside the freezer cabinets. One mentioned her husband's car cutting out at 00:07 and said he'd been forced to wait on the verge of the A85. The other touched her arm and shook her head once.

The first woman stopped talking. They moved to another aisle.

On the school coach, a child asked the driver what happened to the engine during the silence. The driver didn't answer. He didn't even acknowledge the question. He simply carried on driving.

I tried researching it at the library. The history of Oban. Local phenomena. Electrical anomalies.

I found nothing.

A librarian asked what I was looking into. When I told her, she suggested that I concentrate on the history of the sawmills instead. She said there were better resources for that.

It wasn't merely avoidance.

It was enforcement.

The subject itself was forbidden territory.

Jamie stopped talking to me altogether. We'd been friends for six months. Not especially close, but we'd spent time together. We rode our bikes and occasionally tried skateboarding, though I was never any good at it.

After that night, he behaved as though I didn't exist. He wouldn't look at me in the corridors. He didn't return my calls. His mum told my aunt he was busy with other friends.

The scratches on his face took about two weeks to heal. They left faint scars along his jaw.

Nobody asked about them.

I left secondary school at eighteen and worked a few part-time jobs. I stacked shelves at a supermarket and worked as a kitchen porter in a cafe on George Street.

Nothing serious.

My aunt said I ought to attend a further-education college in Fort William, but I couldn't see the point. I was tired most of the time. I didn't sleep properly.

I hadn't since that night on the path.

When I was twenty-one, the hospital advertised a vacancy for a full-time night cleaner. There was a pension, holiday entitlement and steady pay. The money wasn't brilliant, but it was enough.

I applied because it paid.

That's what I told myself. That's what I told my aunt.

In truth, I applied because exhaustion on a night shift doesn't invite questions. People expect you to look tired. They expect you to be quiet and keep to yourself. Nobody wonders why you don't sleep properly or why you flinch when the lights flicker.

I got the job. Moira Hargreaves hired me.

She ran estates and facilities, and on my first day she gave me the rule about the silence. Stay in the basement between 00:07 and 00:19. Don't be anywhere else.

When I asked what would happen if I ignored the rule, she said, "Nothing good."

I didn't press her. By then, I'd learnt that pressing people achieved nothing.

Jamie moved away the year I turned twenty-four. I heard it from a man I'd known at school. I ran into him at a petrol station, and he mentioned that Jamie had left Oban. He didn't know where Jamie had gone or why.

I tried to find Jamie online. Social media, old photographs, anything.

There was nothing. No profiles. No pictures. No trace.

I asked my aunt whether she'd heard anything. She said the Kerr family had moved away a couple of years earlier. She couldn't remember where.

She didn't seem to think it mattered.

I asked a few other people. Nobody appeared to remember Jamie clearly. They said his name sounded familiar, perhaps, but they couldn't place him. One man failed to recognise Jamie when I showed him a school photograph.

We'd all been in lessons together.

It felt as though the town had erased him. Not deliberately. Not with any effort. It had simply allowed him to fade until it was as if he'd never existed.

I had nobody with whom I could discuss that night. Nobody else who had been there. Nobody who would believe me.

I carried it alone. A private burden. Something I never mentioned because mentioning it broke the unwritten rule and got you silenced or forgotten.

I kept working nights. I obeyed Moira's rule. I stayed in the basement during the silence, felt the air change at 00:07 and waited for it to pass.

Then I met Eilidh Fraser.

She was an A&E staff nurse who often worked late, sometimes beyond midnight. I'd see her in the corridors while I was cleaning.

She would nod. I would nod back. At first, we barely spoke.

One night, I was cleaning the third-floor corridor near the fire-rated steel doors leading to a decommissioned theatre wing. They were bolted from the corridor side.

I'd always wondered why anyone would secure doors from the outside. It seemed backwards.

Eilidh passed on her way to the lifts. She stopped, looked at the doors, then looked at me.

"Do you know why those are steel?" she asked.

I shook my head.

"The same reason you stay in the basement."

She walked on without explaining. She didn't need to.

That was when I knew she understood.

Eilidh and I didn't discuss the silence for another year. We nodded when we passed each other. Sometimes she came to the basement staff room for coffee while I waited out the twelve minutes and sat at the other table.

She didn't say much. Her presence alone felt different.

She knew.

It was a Thursday in March when she finally spoke plainly.

I was cleaning the third floor at about 23:30, mopping near the decommissioned theatre wing, when she approached carrying two polystyrene cups. She stopped and handed one to me.

"Have you ever asked why?"

I knew she meant the silence.

"Moira told me not to."

"That isn't what I asked."

I took the coffee. It was still hot.

"Yes. Nobody wanted to talk about it."

She leaned against the wall, not as though she were tired but as though she had time and had chosen to spend it there.

"My dad worked nights at the sawmill, back when it was still running. He once told me that some things don't need explaining, because explanations make people think they can change them."

I waited.

"The silence is old," she said. "Older than the hospital. Older than most of the buildings in the town centre. There was an agreement."

"With whom?"

"Not whom. What."

She looked towards the steel doors.

"Something lives here. In this area. It has for a long time. The silence is part of keeping it on a particular route. Keeping it predictable, so it doesn't wander."

I wanted to ask what wandered, but her manner made it clear she wasn't going to describe it.

"And if it wanders?"

"People disappear."

She said it flatly, with the clinical calm of a nurse stating an unpleasant fact.

"My dad said the agreement was made in the nineteenth century. The sawmill owners and forestry contractors were involved, along with the burgh council. Local Gaelic fishing and crofting families already knew about it. They'd preserved the older rules for generations. Nobody writes the agreement down. Nobody breaks it. You stay indoors and follow the rules. It passes through and keeps going."

"What happens if you don't stay inside?"

She looked at me for a long moment. Her eyes were calm, but there was something beneath that calm. Sympathy, perhaps.

"You already know that part."

I thought of Jamie's face. The scratches.

"Yeah."

She finished her coffee and crushed the cup in one hand.

"The basement rule isn't Moira being controlling. It's the safest part of the hospital. It's deep, bright, hot and noisy. The generators and other machinery keep working, and it doesn't usually come down that far. It remains on the upper floors if it enters at all."

"It comes into the hospital?"

"Sometimes."

She dropped the cup into the rubbish bag hanging from my trolley.

"Not often. But sometimes."

That was all. She walked back towards the lift and I carried on mopping.

I didn't ask for proof. I didn't need it. What she'd told me fitted what I'd already seen.

After that, we spoke more often. Not much, but enough. She mentioned things in passing. Stories her father had told her. Patterns she'd noticed.

Eventually, I told her about Jamie.

She didn't seem surprised.

Hamish Calder and I had attended the same secondary school, although we'd hardly spoken then. He was a year ahead of me and played football. He had always seemed like someone who knew what he was doing with his life.

I ran into him at a petrol station when I was twenty-five. He was in the uniform of a Police Scotland constable based at Oban police station. We went through the usual exchange about how we'd been and what we were doing. I mentioned that I worked nights at the hospital.

"That's rough," he said.

He didn't mean the hours. He meant the silence.

I asked whether he fancied getting something to eat one day. He said yes.

We met at the cafe on George Street on a Sunday afternoon. I wasn't working, and he was off duty. We ordered burgers and chips and spoke about ordinary things at first.

Work. Oban. How Rangers were doing.

Then I asked whether he'd ever dealt with a case connected to the silence.

He stopped chewing, swallowed and took a drink of water.

"Why?"

"Just wondering."

He studied me for a second, then put down his burger.

"Yes. A few."

"What happens?"

"They stall," he said carefully, in the neutral tone police officers use when they don't want to reveal too much. "Every time. Someone goes missing during those twelve minutes, we take the report and follow it up. Then the case simply stops moving. Witnesses forget details. Evidence leads nowhere. Paperwork gets misfiled or sits in a tray until nobody pays attention to it any more."

"Do you think that's deliberate?"

"I think the cases don't want to exist."

He picked up a chip but didn't eat it.

"I had one last year. A man didn't get indoors before 00:07. His wife called it in at 00:30. We found his car on Soroba Road. The driver's door was open and the engine was cold. There was no blood and no sign of a struggle. He was simply gone."

"What did the report say?"

"Voluntary missing person. Last time I checked, the file was still open, but nobody was assigned to it."

He finally ate the chip.

"His wife moved to Glasgow two months later. I don't think she even remembers contacting us."

I said nothing.

"I've seen four cases like that," Hamish continued. "Perhaps five. They all go the same way. It's not that we don't investigate. It's that the investigation stops mattering. As though the town forgets deliberately."

"Have you ever tried to keep one moving?"

"Once."

He looked tired.

"My sergeant told me to concentrate on cases that had a chance. That was it. I didn't push again."

We continued meeting after that. Not often. Perhaps once a month.

He told me about things he'd noticed, and I repeated what Eilidh had said. We never called it an investigation. It was only two people talking about something nobody else wished to acknowledge.

The storm arrived on a Tuesday in November. It wasn't a severe one, only enough wind and rain to make the power flicker at around 23:45.

I was on the second floor, finishing the east corridor, when the lights failed completely. Emergency power came on three seconds later. The exit signs remained lit, but half the overhead fittings stayed dark.

I heard Moira's voice in the stairwell before I saw her.

"Callum."

I turned. She was hurrying upstairs with a torch in one hand and her mobile in the other.

She looked irritated rather than worried.

"The generator isn't engaging," she said. "Estates can't get anyone here until 01:00. I need you to reset it manually."

I checked my mobile. It was 23:58.

"Now?"

"Yes, now."

She handed me the torch.

"It's in the shed behind the loading bay. There's a red switch on the left-hand panel. Push it down, wait five seconds and switch it back up. Simple."

"It's nearly midnight."

"I'm aware."

She was already turning towards the stairs.

"It'll take two minutes. You'll be indoors by 00:05. Plenty of time."

I wanted to refuse. I wanted to tell her it could wait until after 00:19.

But she was already halfway down the stairs, and I had never said no to Moira in seven years.

I went to the ground floor and cut through the storage corridor to the loading bay. The exterior door was heavy steel, the sort that slammed shut under its own weight.

I pushed it open and stepped outside at exactly 00:05.

The air struck me first. Cold and wet. The rain had stopped, but water dripped from everything.

The loading-bay lights were out, but the streetlights farther along the road still worked. They gave me enough light to see the houses beyond the staff car park. Every curtain was closed.

The front steps and little garden paths were dark. The streets were empty. It was a Tuesday night and not especially late, but the whole area looked abandoned.

People knew. They were already inside.

The generator shed stood approximately 12 metres from the loading bay. It was a small metal structure, painted grey, with no windows.

I could see it in the streetlight glow.

I started walking. I told myself the rule was superstition. Eilidh's father's stories were only stories.

Perhaps the silence was an electromagnetic event. Military, maybe. Or natural.

It wasn't something that hunted people.

My mobile showed 00:06. I quickened my pace.

The shed door had a simple latch and no lock. I took hold of the handle and pulled. It stuck.

I pulled harder. The metal groaned but wouldn't move. Rust, perhaps, or a frame warped by years of weather.

I braced one foot against the wall and hauled with both hands.

The door jerked open.

The time on my mobile changed to 00:07.

Everything went dark at the same instant. There was no dimming and no gradual fade. The light was simply gone.

The streetlights died. The exit sign above the hospital door went out. Even the glow from the town centre disappeared, as though someone had thrown a heavy sheet over Oban.

The moon was all that remained. A thin, partial moon. Not enough.

Then I heard metal pounding from inside the loading bay.

Fast and rhythmic. Three blows, a pause, then three more.

Eilidh.

She was signalling for me to run.

I ran towards the loading bay and the hospital door. They were perhaps 45 metres away. Probably less.

I'd crossed that service yard hundreds of times while carrying rubbish bags or pushing supply trolleys. I knew the distance.

But when I began to move, the tarmac stretched ahead of me. The loading bay didn't come any closer.

My legs pumped and my trainers struck the ground, but the distance refused to shrink.

I've never been a fast runner. Even at school, I couldn't finish a mile without my lungs burning. But I wasn't especially slow either. Forty-five metres should have taken no more than ten seconds if I pushed myself.

I ran for what felt like thirty, and the hospital door remained ahead of me.

The air was wrong. Thinner. My chest pulled at nothing and couldn't find enough oxygen. Cold pressure settled across my shoulders and the back of my neck.

I kept my eyes forward. I didn't look left or right. I fixed them on the outline of the loading bay and its closed door, on anything solid and real.

Then something crossed the service road.

Low and fast.

It moved between the commercial bins and the chain-link fence beside the staff car park. I didn't see it clearly. I couldn't. My eyes tried to follow it but slid away, exactly as they had in the woodland twelve years earlier.

My body seized in the middle of a stride. I wasn't completely frozen. I could still move. But something tightened inside my chest and stomach.

A need I didn't recognise.

It wasn't hunger. It wasn't fear. It was something worse. It felt like wanting something I'd never wanted before, something I couldn't name.

I forced myself onwards. My legs had become heavy. The air tasted of metal.

I tried to look directly at the place where the thing had crossed.

There was nothing. Only the bins, the fence and empty tarmac.

But at the edge of my vision, it was there.

Shifting.

Closer than before.

My breathing became rapid and shallow. Behind me, metal rattled as the generator-shed door shook on its hinges.

Then came a mechanical click, followed by a deeper hum than the emergency system had made. It was the sort of sound you feel in your ribs before you properly hear it.

The generator started by itself.

For perhaps two seconds, I thought the noise had driven the thing away. The hum cut through the silence and the air changed, becoming slightly warmer and less empty.

Then the hum altered.

It matched my breathing.

I was dragging in short gasps, and the generator's rhythm synchronised with them.

In. Out. In. Out.

The mechanical pulse followed my lungs exactly. When I held my breath, the hum paused. When I breathed out, it dropped in pitch.

I realised the generator was no longer making that sound.

Something was listening. Not to the noise around me, but through me. It was using the air entering my lungs as a channel.

I could feel it now, not merely at the edge of my sight but inside my chest, in the spaces between breaths.

It was paying attention to me in a way nothing ever had.

I stopped running. My legs refused to move. My hands shook. The need inside my chest grew stronger.

It felt as though I was meant to turn around. As though I was meant to look directly at it this time.

I didn't.

I kept my eyes fixed on the loading bay, the hospital door, anything solid and real.

The hum continued, matching my breathing and then my heartbeat. I felt it in my teeth.

At exactly 00:19, the air popped. The pressure in my ears released.

The real generator engaged. Overhead lights flickered once and came fully to life. The service yard looked normal again.

Empty.

Only tarmac, commercial bins and chain-link fencing.

I stood there for perhaps a minute. Maybe longer. My legs felt like water.

The generator-shed door hung open behind me. I walked back on unsteady legs and looked inside.

The red switch on the left-hand panel was in the raised, running position.

I hadn't touched it.

I closed the door and returned to the hospital.

Eilidh was in the second-floor corridor when I came up the stairs. She looked different.

She wasn't injured or visibly frightened. She simply looked older. Her face bore the sort of tiredness sleep can't cure. The lines around her eyes seemed deeper, and her shoulders sagged in a way they hadn't an hour earlier.

She glanced at me. She didn't ask whether I was all right or what had happened.

"The lights are back," she said.

"Yeah."

She nodded once and turned towards the nurses' station. Her steps were slower than usual and carefully placed. She moved like someone after a car crash, as though her body no longer quite trusted itself.

I wanted to ask whether she'd felt it, whether the twelve minutes had done something to her as well.

I didn't.

I returned to the supply cupboard and collected the mop I'd abandoned. My hands were still shaking.

I finished the second floor. I didn't see Eilidh again before my shift ended at 06:00.

Hamish sent me a message at 05:43.

"You finished soon?"

"Yeah. 06:00."

"Cafe on George Street. Eilidh's coming."

He'd misspelt her name, but I knew whom he meant. I didn't ask why. I didn't ask how he'd known to contact me at that precise moment.

I clocked out at 06:02 and drove to the late-opening cafe in my ageing Vauxhall Astra.

The engine spluttered twice before catching. The sky had turned the pale grey it takes on before true dawn. The streets were empty apart from a refuse lorry on Dunollie Road.

The cafe was the same one where I'd worked as a kitchen porter at eighteen. They still played 1980s rock. Dire Straits was playing when I entered, followed by Simple Minds.

Eilidh sat in a booth near the back. Hamish was opposite her.

They both had coffee. I slid into the seat beside Eilidh. She didn't look at me. A waitress I didn't recognise brought me a cup without asking.

"Are you all right?" Hamish asked.

"Yeah."

He didn't believe me, but he didn't press.

Eilidh wrapped both hands around her mug. Her knuckles were pale. She stared at the table.

"It came inside tonight," she said.

Her voice was quiet and flat.

Hamish looked at me. I nodded.

"Did you see it?" he asked.

"No. I felt it."

"Like the woods?"

Eilidh finally raised her head. Her eyes were red, not as though she'd been crying but as though she hadn't blinked often enough.

"It's getting bolder," she said.

Hamish leant back against the vinyl booth. He was still in uniform and probably hadn't been home yet.

"I pulled some old files," Hamish said. "Went back further than I usually do. Found something from 1978, a ferry incident."

He took out his phone and scrolled through something, but did not show us the screen.

"An overnight Oban ferry bound for Craignure on Mull," he continued. "She was called the Sound of Lorn. Left the pier at 23:45 on 17 October 1978 and never reached Mull."

Eilidh's hands tightened around her mug.

"HM Coastguard found her three days later, with help from the local lifeboat crew," Hamish said. "She was drifting in Kerrera Sound. The engine was sound, the hull was intact and there was no sign of a collision. Everyone aboard was still there. Nineteen passengers and crew."

"Dead?" I asked.

"No." Hamish put down his phone. "Alive. Walking about and answering questions, but wrong."

The waitress came past with a pot of coffee. Hamish waved her away, and she left without filling anyone's cup.

"Wrong how?" Eilidh asked.

Hamish rubbed his jaw. He looked exhausted. Perhaps we all did.

"The reports said they were dry. Not dehydrated. Dry, as though something had drawn all the moisture out of them but left them moving. Their eyes didn't blink properly. They answered questions, but their voices sounded hollow. Empty."

I thought of the shape on the service road and the way it had listened through me.

"What happened to them?"

"They were taken to West Argyll General Hospital. The same hospital where you work now."

Hamish lifted his coffee but did not drink.

"Most died within a week. The reports stopped mentioning the survivors after a fortnight. No discharge papers, no death certificates. They simply disappear from the records."

Eilidh closed her eyes.

"The silence began on Monday, 23 October 1978," Hamish said. "The old burgh council held an emergency meeting behind closed doors. No minutes were kept. From that Monday onwards, everything in Oban began stopping at 00:07 every night. Exactly twelve minutes."

"An agreement," Eilidh said.

It was not a question.

"Aye. That's what I think. Something was already here. It had been here for a very long time. But the ferry crossed Kerrera Sound during the wrong twelve minutes and entered something it should never have touched. After that, the town made the arrangement official. Gave it a timetable and a route. Kept it predictable so it would not wander."

I stared at my untouched coffee. Its surface was perfectly still. It had stopped steaming.

"My father believed the same thing," Eilidh said. "He said it was older than the town and older than the sawmills. The local Gaelic fishing and crofting families knew about it and preserved the knowledge of which places and times to avoid. Then the town grew. The sawmill owners and forestry contractors brought more people in. Buildings spread, and folk began travelling at every hour. Avoiding it became harder."

"So they gave it midnight," I said.

"Twelve minutes of it," Hamish corrected me. "From 00:07 to 00:19 every night. The town shuts down, everyone stays indoors and it moves through. Most nights it keeps going and nobody is harmed."

"Most nights," I repeated.

Eilidh opened her eyes.

"It's changing. I've felt it for the past year. It isn't merely passing through now. It's learning the routes, the buildings and us."

I remembered the generator's hum matching my breathing and settling into the rhythm of my heart.

"It used me tonight," I said. "It listened through me. I could feel it."

Hamish leant forwards.

"What do you mean?"

I told them about the generator starting by itself, the changing hum and the way it had followed my breathing as if tuning itself to a frequency.

Eilidh went even paler.

"It's adapting," she said quietly. "Finding new ways inside."

For a minute, nobody spoke. Something clattered in the cafe kitchen. Dire Straits faded from the speakers and Simple Minds began.

"We can't keep following the same pattern," I said.

They both looked at me.

"If it's learning the timetable and learning where we hide, then the basement doesn't keep me safe. It only makes me predictable."

"What are you suggesting?" Hamish asked, in the careful voice he used as a constable.

I did not know. Not exactly. But something had changed that night. The thing in the dark was no longer merely passing through. It was paying attention, and every repeated routine gave it another chance to understand us.

"We have to disrupt it," I said. "Change the pattern. Do something it doesn't expect."

Eilidh slowly shook her head.

"That's dangerous."

"So is remaining predictable. It found me even though I obeyed the rules, even though I was outside because I was supposed to repair the generator. The rules don't protect us any longer."

Hamish drummed his fingers against the table as he thought.

"He's right," he said at last. "If it's adapting, we're feeding it information. Giving it more chances to learn how we work."

Eilidh said nothing. She stared into her coffee. Her hands had stopped trembling, but her face retained that hollow exhaustion.

"I don't know what disruption would look like," I admitted. "But we can't repeat the same thing and hope it loses interest. It isn't losing interest. It's getting better at finding us."

The waitress returned and asked whether we wanted food. We all declined. She left the bill and walked away. Hamish picked it up and reached for his wallet.

"We'll think of something," he said. "Carefully. We don't know what happens if we push too hard."

I thought about Jamie Kerr's scratches, the people aboard the Sound of Lorn and Hamish's cases in which people vanished and the town forgot them. We knew what happened when someone pushed too hard.

But I also knew what happened when nobody pushed at all.

Eilidh gave me the radio two days later. I was on my break in the basement, sitting at our usual table and drinking bad coffee from the drinks machine, which always smelt faintly of burnt plastic. She entered carrying a green canvas bag and sat opposite me without asking.

"This belonged to my dad," she said.

She drew out an old green Bush multiband emergency radio, the sort once used for listening to shipping forecasts. It was a boxy thing with a telescopic aerial and a tuning dial on the front. It did not look broken, merely worn by years of use.

"Does it still work?"

"Aye."

She placed it between us.

"He kept it in his lorry when he worked nights at the sawmill. Said it helped him keep track."

I lifted it. It was heavier than I expected. The aerial sat loosely in its socket, as if it had been pulled out and pushed back hundreds of times.

"Keep track of what?"

Eilidh gave me the steady look she used in A&E when she expected someone to understand without a lengthy explanation.

"The silence. It clicks just before 00:07. Every time."

I turned the radio over. FRASER had been written in permanent marker on a strip of faded insulating tape stuck to the back.

"How long before?"

"A minute, perhaps. Sometimes less." She pushed it towards me. "You should keep it."

"Eilidh..."

"I'm serious." Her voice fell. "After what happened at the generator shed, you need a warning, even if it only gives you a few seconds."

I did not argue. That night I kept the radio in my ageing Vauxhall Astra beside my cleaning supplies. At 00:06 I sat at the basement table, watching it on the metal surface before me.

The second hand of the wall clock moved onwards. Fifty-eight seconds. Fifty-nine.

At 00:07 the radio made a sharp metallic click, like a component snapping into place. Two seconds later, the air changed and the silence began.

I lifted the radio to my ear. Beneath everything was a low, steady wash of static, but the click had been clear. Eilidh's father had been right.

Hamish rang three days later. I was at home, trying and failing to sleep. My mobile vibrated on the bedside table, and I answered without looking at the screen.

"Are you awake?" he asked.

"More or less."

"I've had an idea." He paused. "It's probably stupid."

I sat up and rubbed my face.

"What sort of idea?"

"The hospital has a rooftop landing pad on the sixth floor. Floodlights for night landings."

I waited.

"What if we switch them on during the silence and aim them at the service yard?"

For several seconds, my half-awake mind struggled to catch up.

"You think light will affect it?"

"I think we can't see it because it doesn't want to be seen. If we strike it with enough proper light, not a few street lamps, perhaps we can force an outline. Make it solid. Take away its advantage."

I remembered the shape in Glencruitten woodland twelve years earlier, when Jamie and I were sixteen. My eyes had slid away from it. It had moved without moving, nearer and then farther away, as if whole moments had been removed.

"Do you really think that will work?"

"No idea," Hamish said. "But I can get roof access. I've checked the schedule and the landing pad isn't in use this week."

I got up and crossed to the window. My flat overlooked the rear car park, which contained only a commercial bin and my Astra.

"When?"

"Tomorrow night. Meet me at the staff entrance at 23:30."

"Does Eilidh know?"

"Not yet." His voice became cautious. "Do you think she should?"

I thought of her face in the cafe, her pale knuckles around the mug and the flat certainty with which she had said it was growing bolder.

"Yes," I said. "She should."

Eilidh did not try to dissuade us. That surprised me. We met in the basement at 23:15 the following night. Hamish was off duty, but wore his uniform as though it made him feel safer. Eilidh sat with her hands folded on the table while he explained.

"There are four landing-pad floodlights, labelled by compass point," he said. "They're mounted on poles at the corners. We can angle two towards the service yard. They should illuminate most of the ground behind the loading bay."

"And if it works?" Eilidh asked.

Hamish looked at me and then back at her.

"Then we see it. Properly. Perhaps that's enough."

"Enough for what?"

He hesitated. None of us had an answer.

"Enough to prove it's real," I said. "Enough to know what we're facing."

Eilidh nodded slowly. From her jacket she took a compact aluminium LED torch powered by two AA batteries and set it beside the Bush radio.

"Take this as well. Just in case."

Hamish picked it up and tested the switch. The beam was narrow and bright.

"Thanks."

"Don't remain up there any longer than necessary," Eilidh said. She looked at me. "And don't stare directly at it, even if the lights work."

"I won't."

She did not appear convinced. She came with us nevertheless, serving as an observer and lookout beside the roof access door.

At 23:45 we climbed the service stairs to the sixth floor. Hamish had an access card of the sort carried by security and estates and facilities staff. It released the heavy steel-cored door, which had a push bar inside and a sign reading AUTHORISED PERSONNEL ONLY.

He opened it and cold air struck us. The landing pad occupied the centre of the roof, marked with a white H inside a yellow circle. Four floodlights stood on metal poles approximately four metres high, one at each compass point, with thick cables descending into junction boxes bolted to the roof.

"Are they controlled by switches?" I asked.

"Over here."

Hamish went to a grey electrical cabinet fixed to the outside wall near the access door. Inside were four toggles labelled by compass point.

"These two face the service yard."

I approached the roof edge and looked down six storeys. The service road ran behind the hospital. The loading bay lay below and to my right, with the generator shed beyond it. Street lamps cast a weak yellow glow over the staff car park.

Hamish joined me.

"All right?"

"Aye."

He checked his watch. It was 23:53.

"We have time."

I took the Bush radio from my jacket and switched it on. Static whispered. Hamish glanced at it.

"Eilidh's father's?"

"Yes."

He nodded and asked nothing more.

We waited. The wind strengthened, cold enough to drive my hands into my pockets. My breath clouded before me. Eilidh remained near the access door, watching us and the stairs. Hamish stood beside the roof edge and stared down as if memorising every detail of the service yard.

At 23:58 he set a timer on his phone. At 00:04 he returned to the electrical cabinet and placed his hand on the first switch.

At 00:06 the radio clicked, sharp and clean. Hamish looked at me. I nodded.

He raised one hand. Five fingers. Four. Three. Two. One.

At exactly 00:07, Oban went dark.

Every street lamp and window vanished. The glow of the town centre disappeared from the horizon. Only the half-moon remained, pale above us, with the faint green light of the stairwell exit sign behind Eilidh.

Hamish threw both switches. The floodlights engaged with a hard metallic clunk, and the service yard erupted into brightness.

Harsh white-yellow cones struck the ground and opened across it with clean, sharp edges. The loading bay, commercial bins and generator shed became as visible as they would have been by day.

For a few seconds, I thought we had proved there was nothing there. Only fear, shadows, old stories and a town trained to believe in something that did not exist.

Then the light bent.

It did not dim or flicker. The beams filled with ripples like heat rising from summer tarmac, though the night was bitterly cold and there was no source of warmth.

The distortion thickened. Shapes gathered inside it, layered over one another. They were tall, taller than any person, and there was more than one. Their outlines overlapped and slipped in and out of focus.

"Christ," Hamish whispered.

They moved without walking. One moment they were close, the next farther away, then closer still. Time skipped around them.

Hamish pulled his Airwave radio from his belt and pressed the transmit button.

"Control, Charlie Two-Seven. Do you receive?"

The radio hissed, but it was not ordinary static. A low, rhythmic pattern rose and fell beneath it.

I recognised it at once. It was the generator's pattern, the rhythm that had matched my breathing. Hungry.

Hamish tightened his grip and tried again.

"Control, Charlie Two-Seven."

The pitch rose until he jerked the radio away from his ear.

Below us, the shapes multiplied. Four. Five. More. The floodlights had not made them solid. They had given them something to fill, and they were spreading through the beams.

"Switch them off," I said.

Hamish did not move. He stared down, pale-faced, the Airwave radio still in his hand.

"Hamish."

He blinked and looked at me.

"Turn them off."

He started towards the cabinet. Before he reached it, every distortion changed direction at once. I could not say whether the shapes themselves had turned or whether the air around them had.

They began sliding towards the hospital. Towards the roof. Towards us.

Hamish stopped. My legs locked as they had in the woodland and outside the generator shed.

The radio in my hand clicked again, sudden and sharp.

The shapes recoiled. It was only a flicker of hesitation, but I saw it.

I looked down. The loose aerial trembled in its socket. I seized it and pulled. It came free with a metallic scrape, approximately twenty centimetres of telescoping steel.

The shapes were perhaps six metres from the building now and moving faster.

I ran to the ledge, leant over and dragged the aerial across the metal railing. It produced a harsh metallic screech followed by a burst of irregular clicks.

Click. Click. Click. Click.

The shapes stopped. They did not retreat, but the distortion shuddered as though something within it were pressing against a membrane.

I scraped the aerial again, faster, using short and jagged strokes.

Click. Click. Click. Click. Click.

The shapes withdrew by a little more than a metre.

"Turn off the lights," I said. My voice sounded like someone else's. "Now."

Hamish ran to the cabinet and threw both switches. The floodlights died, and darkness consumed the service yard.

The distortion remained. I continued scraping the aerial in rapid bursts. The clicks cut through the cold and hurt my teeth. The shapes held back, shivering and bending without disappearing.

"Get Eilidh inside," I said.

Hamish hesitated. I made three quick clicks. The shapes faltered.

"Now."

He ran to Eilidh. She stood beside the access door with both palms flat against the wall, frozen by what she had seen. Hamish caught her arm. She did not resist, but neither did she help him. He half dragged her to the doorway and pushed her through with one hand on her shoulder. She stumbled on the first stair and caught herself against the wall.

Hamish remained in the doorway, one hand gripping the frame.

"Go," I told him.

He shook his head.

"You first."

The distortion advanced in skipped intervals. It was approximately three metres away, and then suddenly nearer. I scraped the aerial harder. The shapes stopped.

"I'm holding the door," Hamish said, calm as if speaking at an incident. "You run. I'll secure it after you."

There was no time to argue. I backed towards him without turning, keeping my gaze beyond the shapes instead of on them. Every few seconds I scraped the aerial against the railing.

The distance felt wrong. I had been standing perhaps four metres from the doorway, yet each backward step failed to bring it nearer. Hamish kept one hand on the frame.

"Keep moving."

Then I was a metre and a half away. Then less than one.

The distortions surged together. Their separate shapes folded into a single rippling mass and rushed forwards, twisting the moonlight around it.

Hamish seized me and dragged me through the doorway. I struck the stairs shoulder-first. The Bush radio bounced down two steps, and the loose aerial flew from my hand.

Hamish slammed the door. The first blow landed before the lock engaged. It was heavy and deliberate, not frantic. Patient.

He threw the bolt. His hands shook, but he secured it. Another impact made the door tremble.

"Go," he said.

He planted both hands against the steel and braced himself. I recovered the radio but left the aerial where it had rolled beyond him into a corner. Eilidh was already halfway down the first flight, moving slowly with one hand on the rail.

"Eilidh."

She did not look back. I went after her and caught her arm. She flinched but did not pull free.

A louder impact sounded above us and echoed through the stairwell.

"We have to move."

She nodded and quickened her pace. I looked back. Hamish remained at the roof door with his palms against it and his shoulders locked.

"Hamish, come on."

He did not turn.

"Get her to the basement."

Another impact struck. I pulled Eilidh onwards. She stumbled at the landing between the fifth and fourth floors but caught herself.

At the fourth-floor door, I pushed into a corridor illuminated only by green exit signs and emergency lights. Eilidh stopped.

"Hamish."

"He's coming," I said, although I had no reason to believe it.

I guided her towards the wider main stairwell. Behind us came another blow, fainter now and muffled by the door through which we had passed. We descended from the fourth floor to the third, then to the second.

On the second-floor landing, Eilidh stopped again and refused to move.

"He isn't coming," she said. There was no emotion in her voice, only certainty.

"He will."

She looked at me with dry, reddened eyes.

"He stayed."

I had no answer. I pulled her down to the first floor and then into the basement. The basement stairwell door was heavier than the others, and I had to wrench it open.

Beyond it lay the laundry corridor, long, narrow and windowless. Fluorescent tubes buzzed overhead. The air was hot and laden with bleach and fabric softener. Tumble dryers still revolved, their noise loud and constant.

I pulled Eilidh inside and let the door close behind us.

The impacts ceased.

We stood there, Eilidh against the wall and me clutching the radio in both hands. The dryers continued to turn. The air remained hot, chemical and thick.

My phone showed 00:14. Five minutes remained.

Eilidh slid down the tiled wall and sat with her knees raised and her head tipped back. I sat beside her. The warm floor vibrated beneath us.

"He stayed," she said again, not to me but simply because it was true.

I said nothing.

At 00:19 the pressure released with a pop. The fluorescent lights flickered once and brightened.

Eilidh took out her mobile with shaking hands and rang Hamish. We listened to it ring five times before his voicemail answered. She tried again with the same result.

She lowered the phone and stared at the opposite wall. I called him too. His short, professional recorded voice told me to leave a message.

I did not.

We remained in the laundry corridor until 00:45. When we went upstairs, the roof access door was shut and locked from the inside.

I tried my pass. The reader flashed red. Eilidh's did the same.

We returned down the service stairs and crossed the main hospital to reception. Moira Hargreaves stood beside the desk with a mobile in one hand and a clipboard in the other. When she saw us, her expression tightened. She did not look surprised, only irritated.

"You're both still here."

"Hamish Calder was on the roof," I said. "He isn't answering. We need to check."

Moira's expression did not alter.

"Roof access was closed because of the storm. Nobody should have been up there."

"Have the police been called?" Eilidh asked.

"Police Scotland have been informed," Moira said quickly. "Constable Calder has failed to report as expected. They are looking into it."

Eilidh stepped closer.

"We were with him. He was on the roof at midnight."

Moira looked at her, then at me, then down at her clipboard.

"The roof cameras failed during the power disruption. There is no record of anyone accessing that area tonight."

"We were there."

She set down the clipboard and folded her hands.

"I'm sure you're both exhausted. It has been a difficult night. Go home and allow the authorities to deal with it."

Eilidh clenched her fists.

"He's missing."

"Police Scotland are investigating. If you have relevant information, speak to them directly."

Moira collected her clipboard and walked towards the lift without looking back.

Eilidh tried Hamish again. Voicemail.

We waited in reception until 06:00. Hamish did not appear. At 06:30, a young constable arrived from Oban police station. He could not have been much older than twenty-five.

He asked when we had last seen Hamish Calder. We told him that Hamish had been on the hospital roof with us around midnight during the storm.

The constable wrote it down and asked whether Hamish had mentioned where he intended to go afterwards.

"He never came down," Eilidh said. "He is still on the roof."

The constable looked confused. He said officers had already searched the roof and found nobody.

"Search it again," I said.

He promised they would and left.

They found nothing.

By morning, the official account placed Hamish near Kerrera Sound, responding to a storm-related call. Witnesses claimed to have seen him near the water around midnight. The assumption was that he had slipped from the wet rocks and fallen into the sea.

Police Scotland, HM Coastguard and the local lifeboat crew searched for three days. They found no body and no trace of him.

Eilidh rang me two days after his disappearance and asked whether I had heard anything. I had not.

She said she was leaving Oban. She could no longer remain there. She had family in Inverness, away from Kerrera Sound and the nightly silence.

I asked if she wanted to meet before she left. She said no. It would be better if we did not.

I never saw her again.

I resigned from West Argyll General Hospital four days after Hamish vanished. I told Moira I was finished. She did not ask why. She had me sign the leaving forms, took my NHS photo pass and removed me from the rotas.

I packed what little clothing I owned into two holdalls and took the Bush radio. Everything else stayed behind.

That night I drove south to Glasgow and found a short-term let in Dennistoun. It was a studio flat of roughly 46 square metres. The landlord asked few questions.

I believed distance would help. Glasgow was approximately two and a half hours away by road. It had a different population, different streets and a different electrical grid. The silence belonged to Oban. It was local and contained.

I was wrong.

Three months passed. I found work as a kitchen porter in a bar near Sauchiehall Street and took night shifts because nights were what I knew. I still slept badly, but better than I had at the hospital. I seldom thought about the silence because I did not allow myself to.

Then, on a Tuesday in June, I was awake in my flat at 00:05, sitting on the sofa with the television on.

At 00:06 I heard a faint metallic clicking from the heating vent near the floor.

I stood, crossed the room and pressed my ear to the grille. The clicking grew louder. It was rhythmic and familiar.

My stomach dropped.

At exactly 00:07, the lights went out.

Not only in my flat. Through the window, I watched darkness descend through the whole building, floor by floor. Fifth. Fourth. Third.

The television died and the fridge stopped humming. Outside, the street lamps remained lit and cars continued along the road. Only our building had stopped.

I checked my mobile. It showed 00:07.

The air thinned and turned cold. I stood in the middle of the room, unable to move. The clicking inside the vent sharpened and quickened.

I thought about hiding, the basement and running. Then I went to the kitchen and opened the drawer where I kept odds and ends.

Inside was a broken smoke alarm I had meant to throw away. I prised it open with a butter knife and removed the thin metal contact strip. I scraped it rapidly against the rim of the sink.

Short, sharp clicks.

The sound in the vent stopped.

I ran into the corridor and reached the stairwell. Fifth floor. Fourth. Third. The stairwell lights were dead, leaving only the dim green exit signs.

As I descended, I scraped the contact strip along the handrail, producing repeated metallic clicks.

The basement maintenance door was locked. I kicked it once, then again. The frame split and the door flew open.

The boiler room beyond was hot and loud, crowded with pipes. I shoved a loose length of pipe through the door handle and wedged it against the frame.

The air grew thinner.

I kept clicking, steady and rhythmic. Something shifted inside the ductwork. It did not sound like footsteps. It sounded like metal and distance bending.

Distortion seeped through the joints where the ducts entered the walls. At first it was thin. Then it thickened.

An emergency generator started somewhere above, struggling to restore power. I found the grey electrical cabinet on the wall and opened it. Inside were rows of breakers and wires around a digital control screen.

I struck the screen with the pipe. Once. Twice.

Sparks flew. The glass cracked and went black. The generator stopped.

The darkness became total.

I kept clicking. The distortion continued to enter through the ducts and seams, spreading across the room.

My phone showed 00:18. One minute remained.

I found the gas supply, identified by a yellow warning tag, and forced open the valve. The hiss began at once, followed by the sharp, chemical odour of natural gas.

The distortion thickened and began forming a shape.

I swung the pipe against the electrical cabinet.

One hard blow.

Sparks erupted.

The explosion struck me like a wall and hurled me backwards into the pipes. The door blew outwards. Metal shrieked. The fire suppression system activated, dumping dense white chemical foam from the ceiling.

The distortion stopped moving. Its separate parts ceased dividing and gathered into one wavering patch, pinned amid heat, pressure, foam and the broken rhythm of the electrics.

It had not been destroyed. It merely shuddered there, wrong and unable to pass through the disruption.

I looked beyond it and refused to focus directly upon it.

At 00:19, the upstairs lights returned. I heard their ordinary hum and buzz.

The distortion withdrew. It thinned and vanished.

Foam continued falling over the floor, the pipes and me. I sat with my back against the wall, breathing chemical air.

Fire alarms began shrieking throughout the building. Above me came opening doors, voices and footsteps in the stairwell. Someone shouted about smoke and ordered everyone outside.

I did not move.

The foam finally stopped. Apart from the alarms, the room became quiet.

Several sets of heavy, rapid footsteps descended. Someone tried the basement door, but the pipe still jammed it shut.

"Fire and rescue service! Is anyone in there?"

I did not answer.

They forced the door in perhaps thirty seconds. The pipe fell clattering to the floor. Three firefighters entered in full protective equipment, with helmets and breathing apparatus. One saw me, came across and asked whether I was injured.

I shook my head.

They lifted me and led me upstairs, through the lobby and out to the street. Residents stood around in nightclothes and coats. Fire engines filled the road, their blue lights flashing.

A paramedic from the Scottish Ambulance Service examined me and asked what had happened.

I said I did not know. I had heard something and gone to investigate, and then there had been an explosion.

He accepted that without pressing me.

A fire investigation officer questioned me an hour later. I repeated the same account. He said it appeared to have been an electrical fire and that someone had damaged the generator controls. The early theory was vandalism or attempted cable theft.

They sealed the boiler room pending investigation. Blue-and-white police cordon tape crossed the basement door.

I sat on the kerb until 04:00, then returned to my flat. The lights were on and everything worked. The heating vent was silent.

I took my holdalls. They had remained half packed since Oban because I had never truly settled. I left the keys on the worktop and walked away without knowing where I would go.

Three days later, I checked my phone. There were six missed calls from the landlord and two voicemails from Police Scotland officers in Glasgow asking about the fire.

I deleted them.

Hamish remained missing. Police Scotland closed his case after two months. He was presumed dead following an accidental drowning in Kerrera Sound, despite Eilidh and me having watched him brace and secure the hospital roof door so we could escape.

Eilidh remained gone. I tried her number once, but it had been disconnected.

I kept moving. Paisley, then Stirling, then Newcastle as I drifted south.

The silence did not spread beyond that block in Dennistoun. I checked. Glasgow continued normally through midnight. It had been only that building and only that night.

I still have the old Bush radio. It no longer clicks. It gives me nothing but static.

Sometimes I picture my name and repeat it silently to make certain it remains solid.

Callum Reid.

Most days, it does.

Some days it feels thin, as though it has begun to slip from me.

That is how it works, I think. You resist and it learns. You run and it follows. You try to stop it and it takes something in return.

Jamie Kerr. Hamish Calder. Eilidh Fraser.

Now me.

Not gone. Not yet.

Only harder to remember.

Callum Reid.

Callum Reid.

It is becoming harder to hold on to.