The Last Calls of Crown Wharf

At thirty-four, with only a nine-month fixed-term contract, I wanted the job to remain uneventful. I worked in the audiovisual archive at the People's History Museum in Manchester, and my duties were exactly what the title suggested: intake, sorting, cataloguing and digitisation. The work was quiet. The storage rooms were cold.

I liked it that way.

The Wren archive box arrived on 26/10/2024. Helen Whitaker set it on my desk that afternoon without ceremony. She was my supervisor, fifty-six and methodical, and she treated every donation in precisely the same way, regardless of its source.

This one had come from Crown Wharf Towers, the pair of cylindrical 1960s residential blocks beside the River Irwell. The donor was Sophie Wren. The deceased was her uncle, Graham Wren, a retired building-services worker who had lived in the development for decades before dying alone at Manchester Royal Infirmary in July.

'Anything related to Manchester's social history gets separated,' Helen said. 'Sensitive personal material gets flagged.'

I nodded. She left. I opened the box.

The expected material came first: Crown Wharf sales leaflets with covers faded to pale blue and tan, residents' association circulars printed on cheap paper that had gone brittle, and redevelopment photographs spanning the 1960s through the 1990s. There were pictures of the towers taken from the river, from Water Street and from the spiral parking ramp between the two round structures.

I set the leaflets, circulars and photographs aside. They were straightforward museum material.

Beneath the paper, I found a yellowed BT Response answering machine with a smoked cassette window. It was the sort of boxy machine that had been common in the 1990s. A power adaptor lay coiled beside it.

Under the adaptor were nine microcassettes in clear plastic cases, each labelled in neat handwriting. I picked up the first case.

The label read: Leila Rahman, flat 411, 14/06/1995.

Not a telephone number. A flat number and a date.

I checked the others.

Priya Banerjee, flat 1608, 03/02/1998.

Arthur Pritchard, flat 919, 22/11/1991.

Owen Price, flat 2404, 09/08/1989.

Every cassette followed the same format: name, flat number, date. The labelling looked more like a building log than a normal answering-machine archive.

I turned the BT Response over in my hands. Its green display already read 03:17, although the power adaptor was not connected.

I stopped.

A handwritten note was taped to the underside. The adhesive tape had yellowed and the ink had faded to brown, but the words remained legible.

Never let them finish if they start asking where they are.

I sat holding the machine for a moment and read the warning twice to make certain I had understood it. Then I carried the entire collection along the corridor to Helen's office.

She looked up from her desk. 'Problem?'

'I need clarification.'

I set the machine and tapes in front of her. She examined the labels without touching them, then picked up one cassette case and held it towards the light.

'If it documents the building, digitise it,' she said. 'If it contains private medical, legal or family calls, stop and flag it.'

'The labelling is unusual.'

'Unusual isn't the same as private.' She put the cassette down. 'The museum doesn't need personal crises from a dead man's flat unless they document the building.'

I nodded. She handed the machine back to me, and I returned to the digitisation desk.

Lewis Adebayo was standing beside my chair when I arrived. He was another contractor, a few years younger than me, and he liked drifting between desks whenever his own work grew dull. He saw the answering machine in my hands and grinned.

'Old answering-machine tapes are always divorces, plumbers and dead relatives,' he said. 'If you find a ghost, ask whether it wants a pension.'

I showed him the handwritten warning. He bent closer to read it, then straightened and shrugged.

'Estate donations are full of strange notes. Last month I found a shoebox of slides labelled, "Do not view after dark." They were photographs of someone's garden.'

'This feels different.'

'Everything feels different when it's taped underneath a machine.' He tapped the yellowed casing. 'Are you going to play them?'

'That's the job.'

'Let me know if you need a witness.'

He walked back to his desk. I sat down.

The digitisation setup was simple. I plugged the BT Response into a wall socket, connected its audio output to my computer interface and opened the recording software. The green display remained fixed at 03:17 for several seconds. Then it began counting backwards.

03:16.

03:15.

03:14.

I assumed the internal clock was faulty. The unit was old and had been stored badly. Broken displays were common in donated electronics.

I picked up the cassette cases to choose the first tape.

They were warm.

I put them down and touched the archive box. Cold. I touched the desk. Cold.

I touched the cassette cases again. They felt as though someone had been holding them.

The archive work area was always cold. The storage rooms were colder. There was no reason for the tapes to retain heat.

I selected Leila Rahman's cassette because its label was the clearest and the date was precise. I placed it beside the machine and copied the details into my intake notes.

Leila Rahman, flat 411, 14/06/1995.

The display continued counting backwards.

03:13.

03:12.

I opened a new capture file on my computer and labelled it Leila Rahman, 14 June 1995. Then I lifted the cassette case. It was still warm.

The green display read 03:10.

I lowered Leila's microcassette into the machine, started the capture software and pressed play.

The machine clicked, hissed and played a woman's voice, panicked and breathless.

'Samir, pick up. Please pick up.'

She sounded young. Her Manchester accent carried the faint inflection of her family background.

The recording quality was poor, all compressed middle frequencies from a cheap built-in microphone and magnetic tape stored in unsuitable conditions.

'I'm in the flat. The corridor smells of bleach, and Graham from building services has been knocking for twenty minutes. He won't say anything.'

I reached for stop. This was a private emergency call, not building history. Helen had told me to continue only if the recordings contained something relevant to the collection. A frightened woman calling her brother did not qualify.

Before I could press the button, Leila spoke again.

'Samir, I can hear you breathing. Why aren't you saying anything?'

I froze.

I had shifted in my chair a second earlier, making it creak beneath me. The answering machine sat about 15 cm from my elbow. Its built-in microphone, a small metal grille on the front panel, pointed towards me.

Without thinking, I whispered, 'Hello.'

Leila answered at once.

'Samir?'

A pause followed. Then her voice changed, becoming flat and wary.

'No. You're not Samir.'

I yanked the power lead from the wall. The plug struck the floor.

The green display stayed lit.

The tape continued playing for another four seconds.

Leila said very quietly, 'You're not Samir.'

Then the machine fell silent.

I sat staring at it. The cassette remained inside, its brown ribbon visible through the smoked window. I had not touched rewind. I had not pressed anything except play.

A recorded microcassette could not respond to a voice in the present. It could not hear me. It could not answer.

I reconnected the power lead. The display blinked 03:17, held there, then began counting backwards again.

I opened the capture file and scrolled to the point where Leila had asked why Samir was not speaking. The waveform showed her original words as recorded sound, its peaks and troughs matching the tone of her voice.

Then came a gap, a flat line where I had been silent. My whispered hello appeared as a thin spike. After it came Leila's reply.

That reply had not existed before I spoke.

I rewound the tape and played the same section again. This time I said nothing.

Leila's earlier words returned exactly as before. The panic in her voice was identical. She said Samir could hear her breathing. She asked why he was not speaking.

Then, instead of accusing me, she stopped and listened.

After several seconds, she asked, 'Why does your breathing sound as if it's coming from a huge empty room?'

I kept my hand on the stop button but did not press it.

Leila asked, 'What year is it?'

I should not have answered. I was trying to preserve the recording and prove the tape had been doctored somehow. I needed evidence that it was a hoax, perhaps spliced into conditional branches like some old interactive recording.

But she sounded so frightened that I said, 'It's 2024.'

Leila began to cry. They were soft, wet sounds that the microphone barely caught.

Then she said, 'Graham already made me call Samir hundreds of times.'

I pressed stop.

My hands were shaking. I drew them into my lap and stared at the answering machine until the green display stopped counting and returned to 03:17.

Then I opened the museum's research database and searched the Manchester Evening News archive for Leila Rahman in June 1995.

The report was brief, buried in the Greater Manchester news pages.

The headline read: Trainee radiographer dies in Crown Wharf fall.

It identified Leila Rahman as a twenty-five-year-old trainee radiographer who had fallen from the fourth-floor balcony of her flat on 14/06/1995. Greater Manchester Police had ruled the death accidental after finding no signs of forced entry or a struggle. A building-services employee named Graham Wren had discovered her body on the parking ramp below and called 999.

There was no mention of a telephone call.

I printed the article and placed it beside the answering machine. Then I picked up another cassette.

Priya Banerjee, flat 1608, 03/02/1998.

I needed to prove Leila's tape was unique. I needed it to be an isolated fault, something that could be explained and filed away.

I loaded Priya's cassette and pressed play.

The recording opened with the sound of a violin: scales played carefully and precisely, rising and falling in even intervals. Then the violin stopped and a woman's voice began to speak. She sounded calm and measured.

'Lucy, it's Priya. I need to cancel your lesson today.'

She paused as if waiting for an answering-machine tone that never came.

'Someone was inside my flat while I was at Tesco on Deansgate. Every hob ring on my cooker was turned on. All the windows were locked.'

Her voice remained steady, but something lay beneath it now. Not panic. Caution.

'Lucy, have you got a cold? Your breathing sounds wrong.'

I did not move. I did not speak. I kept my hand flat on the desk, away from the microphone.

Priya whispered, 'Graham told me nobody believes women who live alone.'

I pressed stop. The machine obeyed immediately. The tape went silent.

I searched the Manchester Evening News archive again.

Priya Banerjee, February 1998.

The article appeared on page three beneath the headline: Crown Wharf fire claims one life.

Priya Banerjee, a thirty-six-year-old violin tutor with a teaching connection to the Royal Northern College of Music, had died in a flat fire blamed on an unattended cooker. Graham Wren, a building-services worker, was quoted as saying that he had smelt gas during his rounds and called 999 too late to save her.

I printed that article as well and placed it beside Leila's. Then I opened both cassette cases and left them on the desk with their clear plastic lids propped up.

Two women. Two deaths. Two accidents.

Graham Wren had been present at both scenes, helpful, quoted and never suspected.

The cassette cases rested beside the articles, the brown ribbon inside each tape catching the overhead light.

I asked Lewis to stay after the museum closed because I did not trust myself to be alone with the machine.

He came over shortly after 18:00, once the public areas had shut and the archive floor had fallen quiet. I had the Leila Rahman and Priya Banerjee articles open on the research workstation and had laid the printouts beside their matching cassette cases. The captured waveform from Leila's call glowed on my laptop screen, with the reply highlighted where her voice had appeared only after I spoke.

Lewis put his canvas shoulder bag on the floor and stared at the printouts.

'You're telling me the museum has inherited a haunted answering machine from a building-services man?'

I told him not to speak near it if a caller asked a direct question.

He laughed, a short, nervous sound that died when I showed him the waveform timestamps. Leila's accusation had not existed until four seconds after my whisper. Before that point, the audio contained only her panicked breathing and the hiss of old tape.

Lewis bent closer to the laptop, then straightened and looked at the BT Response on the digitisation desk.

'Play another one,' he said.

I loaded Arthur Pritchard's cassette while he watched beside me.

The machine clicked twice, hissed and began to play.

Arthur identified himself as an elderly widower calling his daughter, Joanne Pritchard, from flat 919. His tone was thin and wavering, the sort of voice that apologised for needing help.

'Joanne, it's me. The bath started running by itself again, and I can't get it to stop. Graham was in here earlier to fix the drain, but now the water's coming over the edge.'

Water splashed against tiles behind his words. The sound was clear enough for me to hear it sloshing over the porcelain and spreading across the floor.

Arthur coughed once, then continued.

'I tried shutting the valve beneath the basin, but it's rusted. The water's already in the corridor.'

Lewis folded his arms. He was listening, although scepticism lingered in his expression. I gestured for him to remain quiet.

Arthur's breathing grew louder on the tape, every inhalation sharp and wet.

'Joanne, if you get this, call reception. Tell them I need somebody who isn't Graham. The water sounds doubled.'

Arthur made a small, frightened noise. Despite my warning, Lewis leant close to the machine.

'Arthur.'

Arthur reacted immediately.

'Who said that? That voice is coming out of the bathroom wall. It's not on the telephone.'

Lewis recoiled from the desk.

I reached for stop, but Arthur was already screaming. Water roared behind his voice and something heavy struck the tiles.

Arthur choked, gasped and choked again. It was wet and desperate, the sound of his mouth filling with water.

Lewis pressed stop.

Nothing happened.

He pressed eject. The cassette door sprang open, but Arthur's call continued from inside the machine. The microcassette's brown ribbon twitched loose between the spindles and unwound in jerking spirals whilst the voice still came through the speaker.

Arthur begged for help. He called Joanne's name three times. Then the choking weakened and the rush of water smothered most of his words.

Lewis seized the machine and shook it. The ribbon snagged, snapped and kept moving.

He looked at me, mouth open, his face drained of colour.

'Daniel, how do I stop it?'

I did not know.

Arthur was drowning on a tape that would not eject, and every second we listened meant he was drowning again on 22/11/1991.

Lewis set the machine down hard, scanned the controls and pressed erase.

Arthur's choking stopped instantly.

The tape went blank. The loose ribbon stopped moving and the green display blinked once before settling at 03:17.

Lewis backed away from the desk. His hands were shaking.

'I didn't know what else to press.'

I pressed rewind. The machine obeyed.

I pressed play, and the cassette produced nothing but static and the faint mechanical hum of blank tape moving through the spindles. Arthur's voice was gone.

I rewound it and tried again.

Nothing.

Lewis had erased the call.

He sat on the floor with his back against the wall and buried his head in his hands.

I did not sleep that night. I went home, lay in bed beside my wife, Claire, and stared at the ceiling until my alarm sounded at 06:30.

By the time I returned to the museum on 27/10/2024, Lewis was already waiting outside the staff entrance. He looked worse than I felt.

We went straight to the research workstation, and I searched the Manchester Evening News archive for Arthur Pritchard's drowning in 1991.

The article still existed. Its text was identical to the version I remembered. Arthur Pritchard, eighty-one, had drowned in his bath at Crown Wharf Towers after the tap malfunctioned and the drain became blocked. Building-services staff had discovered his body the following morning.

But the archive photograph had changed.

In the first version, Graham Wren had stood behind two members of an ambulance crew in the Crown Wharf reception area, his face partly visible over their shoulders. In the new version, Arthur's daughter, Joanne Pritchard, stood alone beside a Greater Manchester Police officer. Graham was absent.

The caption now read: Joanne Pritchard speaks to Greater Manchester Police outside Crown Wharf Towers following her father's death.

I printed the altered version and laid it beside the copy I had printed before the change.

Lewis stared at them without speaking.

'Do you remember Arthur's voice?' I asked.

He nodded.

'Do you remember the water?'

He nodded again.

'Do you remember pressing erase?'

'Yes.'

I asked him to wait and went to Helen's office.

She was sorting donation forms at her desk. I asked whether she remembered assigning me the Wren archive box.

She looked up, confused. 'What Wren box?'

I described the archive box from Graham Wren's estate, the one his niece had donated on 26 October.

Helen frowned and opened the accession register on her computer. She scrolled through the October entries, found Sophie Wren's name and turned the monitor towards me.

The entry listed only sales leaflets, residents' association circulars and redevelopment photographs from Graham Wren's estate. There was no answering machine and no mention of microcassettes.

The notes field read: Crown Wharf promotional material, residents' circulars and redevelopment photographs. Processed and catalogued by Daniel Mercer, 28/10/2024.

I had not processed anything on 28/10/2024. That date had not happened yet.

The Wren box had arrived on 26/10/2024, and I had opened it that same day.

Helen asked whether I was feeling all right.

I told her I must have confused the donors, thanked her and left before she could ask anything else.

Lewis was still beside the research workstation. When I returned, I showed him a photograph of the altered register entry on my phone. He read it twice, then looked at the printed articles, the answering machine and the cassette cases still lying on the digitisation desk.

'She doesn't remember the tapes at all.'

'No. But you do.'

'Yes.'

'And so do I.'

'Yes.'

Lewis picked up Arthur Pritchard's cassette case and opened it. The microcassette inside was still blank. He held it towards the light, tilted it and put it down again.

'What did erasing him do?'

I did not answer at once.

I arranged the altered records and the blank tape in a row across the desk: the new photograph without Graham, the accession entry without the tapes, and the cassette without Arthur's voice.

The pattern was clear.

Erasing the call had not saved Arthur. It had removed the call as historical evidence, and history had rearranged itself around the absence.

I stated the working rule aloud. The machine was not merely playing recordings. Each cassette held the final telephone call of a real Crown Wharf resident at the moment Graham had killed or cornered them. The calls were still active somewhere.

Speaking close to the machine allowed the trapped caller to hear the present, but erasing a tape did not free them. It protected Graham more completely by removing evidence that the call had ever taken place.

Lewis told me we had to destroy everything before it happened again.

I refused to agree until I understood what erasing Arthur's call had already changed.

He stared at me. 'Daniel, we just made an old man disappear from a photograph.'

'I know.'

But the photograph was not the only alteration. If erasing Arthur's tape had removed his call from Graham's pattern, then Graham's timeline had shifted. The drowning still occurred in 1991, but Graham was no longer recorded as discovering the body. Someone else had found Arthur, or his death had been reported differently, or the investigation had never placed Graham at the scene at all.

I needed to know which version was now true before we destroyed the machine. Destroying it might fix those changes in place.

Lewis picked up his canvas shoulder bag.

'Then work it out quickly, because I'm not pressing another button on that thing.'

He started towards the staff entrance. I heard the door slam two floors below.

For a while I sat alone at the digitisation desk, holding Arthur Pritchard's blank microcassette above an accession record that no longer acknowledged any of the tapes.

Lewis returned before long but remained near the door with his arms folded, watching me as if I might try to rewind something.

I needed to think through what we knew.

Each cassette held the final telephone call of a real Crown Wharf resident. Graham had killed them or cornered them. The machine allowed us to speak to them across time, though they heard us as the person they had called until they realised otherwise.

Stop interrupted ordinary playback. Rewind dragged them backwards. Erase removed the call from history and made the records protect Graham instead.

Lewis broke the silence.

'We destroy it. All of it. The machine, the tapes, everything.'

I looked up. 'That's your solution?'

'If pressing buttons changes newspaper articles, smashing it is the only responsible thing left.'

I shook my head. 'Erasing Arthur's call protected Graham. It didn't expose him. If we destroy the tapes without understanding the rules, we might be doing Graham's work for him.'

Lewis exhaled sharply and stared at the ceiling.

'Then what do you want to do, Daniel? Call Greater Manchester Police and tell them we have a haunted answering machine?'

I had no answer.

Leila's cassette clicked.

We both turned.

The tape lay inside its plastic case at the edge of the desk, where I had left it after digitising the opening section. The case was closed.

The reels inside began to move.

Lewis stepped back. I leant closer.

Leila's voice came through the plastic, muffled but clear.

'Don't erase me. I remember every version.'

Lewis caught his breath.

I reached towards the case but did not touch it.

'I remember every version,' Leila repeated. Her voice was steadier than it had been during the call. 'Sometimes he pretended to be Samir. Sometimes he told me exactly how long it would take him to break through the door. Sometimes he rewound me just before I fell.'

I drew my hand back.

'Where are you now?'

'In his flat. He kept us there. He played us whenever he was lonely.'

Lewis made a sound I could not interpret.

I kept my eyes on the cassette. 'Do you know you're dead?'

The reels stopped briefly, then began turning again.

'I know what he did. I know what the newspaper said he didn't do.'

I wrote that on the nearest scrap of paper. My handwriting shook.

'What do you want me to do?'

'I don't want to be erased. I want the police to know Graham murdered me.'

Lewis muttered under his breath. I ignored him.

'How do I prove it?'

'Behind the framed photograph of Crown Wharf Towers on his living-room wall. He liked seeing the real names beneath the false accident reports.'

I wrote the words exactly as she said them.

'What's his flat number?'

The reels slowed. Leila's voice grew quieter.

'I don't know. I only saw the inside.'

I thanked her.

The cassette went still.

Lewis stared at me. 'You're writing down instructions from a tape.'

'Yes.'

'A tape that just switched itself on.'

'Yes.'

He dragged both hands down his face. 'We're going to prison or hospital. One or the other.'

I retrieved Sophie Wren's donation form from the file Helen had given me. The address field listed Graham's home as flat 1806, Crown Wharf Towers, 18 Water Street, Salford.

I showed it to Lewis.

'If Leila's right, the labels are still there.'

He looked at the form, then the cassette, then me.

'If we go there, we take the machine so it can't switch itself on here.'

I agreed.

Helen was in her office reviewing accession records when I knocked. She glanced up, saw me in the doorway with the answering machine under one arm and frowned.

'What are you doing with that?'

'I need to remove it from the building for further investigation.'

She put down her pen.

'Nothing leaves this room without paperwork, and there is no paperwork for whatever you think that machine is.'

I began to argue, then stopped.

The accession record had changed. As far as the museum's system was concerned, the Wren donation consisted of leaflets, circulars and photographs. There were no tapes and no machine. Helen could not authorise the removal of something that officially did not exist.

I told her I understood and left.

Lewis was waiting beside the digitisation desk.

'She said no,' I told him.

'Of course she did.'

'There's no paperwork.'

'Then we wait until she leaves and take it anyway.'

I nodded.

We worked through the rest of the day in silence. Helen left at 17:30. The archive closed at 18:00.

At 17:50, I checked that the answering machine was still unpowered, then packed it into my canvas shoulder bag. I added Leila Rahman's cassette, Priya Banerjee's cassette and Owen Price's cassette. I also took Arthur Pritchard's blank cassette, though it no longer played anything.

Lewis met me by the staff entrance. He carried a folder containing photocopies of the labels and the notes I had made during Leila's second message.

'If this goes badly,' he said, 'I'm telling them you made me come.'

'That's fine.'

We signed out in the staff log and walked to Deansgate-Castlefield tram stop. The evening was cold and grey. I kept one hand on the shoulder bag because the machine felt heavier than it should.

We took a tram into the city centre, then walked towards the Irwell. The People's History Museum and the dark line of the riverside gave us our bearings. Lewis repeatedly glanced over his shoulder as if somebody were following us.

Crown Wharf Towers rose ahead beside Water Street, two round concrete blocks with balconies spiralling upwards like corkscrews. The western tower caught the last of the daylight. The eastern tower stood in shadow.

I adjusted the strap of my bag. Lewis pulled his jacket tighter.

We entered the residential reception area with the answering machine inside my shoulder bag. The lobby smelt of cleaning fluid and old carpet.

Martin Shaw looked up from the concierge desk. His uniform shirt stretched tightly across his shoulders and his name badge sat crooked on his chest. He had the sort of face that suggested he smiled often during the day, but not after dark.

'Can I help you?'

I held up my museum staff pass, though it meant nothing there.

'Sophie Wren asked us to collect some more photographs from her uncle's former flat. We're from the People's History Museum.'

Martin frowned and drew a large ring binder across the desk. He leafed through laminated pages covered in flat numbers and residents' names written in different hands. His finger stopped halfway down one page.

'Sophie Wren. Flat 1806.' He looked up. 'Have you got paperwork?'

'She rang this afternoon. She forgot a few framed photographs when the estate was cleared.'

It was a clean lie. Lewis stood beside me with his hands in his pockets and said nothing.

Martin tapped the binder.

'I can't let you go up without an escort. Building policy.'

He lifted the desk telephone and dialled an extension. It rang four times before somebody answered.

Martin turned slightly away from us.

'Nadia? Yes, it's Martin. I've got two men here from the People's History Museum. They need access to 1806 for some material from the Wren estate. Can you take them up?'

He paused.

'Yes, I know. Just stay with them until they're finished.'

He hung up and pointed towards the lifts.

'She'll be down in a minute.'

We waited near the lift doors. Lewis shifted his weight from one foot to the other.

The bag hung heavily against my ribs, and I could feel the hard edges of the answering machine through the canvas. Its green display was dark, but the cassettes in the side pocket felt warm.

The lift doors opened and a woman in a building-services uniform stepped out. She was shorter than me, about 163 cm tall, with dark hair tied back. A radio was clipped to her belt beside a ring of keys.

'Nadia Hussain,' she said. 'You're here for the Wren flat?'

'Daniel Mercer. This is Lewis Adebayo.'

She nodded and pressed the call button again.

'Martin said photographs.'

'Framed pictures,' I said. 'His niece thought there might be a few left.'

Nadia studied me for a moment longer than was comfortable, then entered the lift when the doors opened. We followed.

She pressed eighteen. The doors closed.

We climbed in silence. I watched the floor numbers illuminate one by one. Lewis stared at the ceiling.

When the doors opened on the eighteenth floor, Nadia led us along a curved corridor. The carpet was dark red and the walls were beige. Every door looked identical except for its brass number.

She stopped at 1806 and unlocked it with a key from her ring.

'Sophie cleared this place weeks ago,' she said. 'I don't know what's left.'

She pushed open the door and reached inside to switch on the light.

The flat was empty.

Pale rectangular patches marked the carpet where furniture had stood for years. The walls were bare except for a single framed photograph in the narrow corridor leading towards the bedroom. The kitchen on the left had been stripped back to its worktops. The balcony door was closed and the blinds were drawn.

Nadia walked to the corridor and tapped the frame with one knuckle.

'This is the only thing still here. Sophie told us to throw it away when we got round to filling the screw holes.'

I stepped closer.

The photograph showed Crown Wharf Towers from street level, both blocks rising into a pale sky. From the cars parked along Water Street, it appeared to have been taken in the 1970s. The frame was cheap wood, the sort sold in any high-street homeware shop, but two long screws fixed it directly into the concrete wall.

Lewis came up beside me.

'You want it?'

'Let me get it down first,' Nadia said.

She handed me a screwdriver from her belt without further comment. I put the shoulder bag on the floor and worked at the first screw.

It took longer than it should have because the threads were stripped. When it finally came free, I started on the second. Lewis held the frame steady to stop it falling.

The second screw came out. I lifted the frame away from the wall.

Behind it, taped flat against the concrete, were nine folded index cards.

I stared at them. Lewis leant closer.

'What is that?'

I peeled off the first card. The old adhesive left a sticky residue on my fingers. I unfolded it.

The handwriting was neat and cramped, written in blue ink.

Leila Rahman. Flat 411. 14/06/1995.

Below the heading was a list.

Trainee radiographer. Irregular hospital placements. Brother Samir Rahman, Manchester Royal Infirmary, night rota. Always calls Samir when frightened. Trusts men who say Samir sent them. Phrase: Samir sent me. Open the door before the man in the corridor comes back.

I felt cold.

Lewis took the card and read it. His expression slackened.

'Jesus Christ.'

Nadia stepped closer. 'What is it?'

I removed a second card and unfolded it.

Priya Banerjee. Flat 1608. 03/02/1998.

Violin tutor. Royal Northern College of Music connection. Checks every hob ring before leaving the flat. Mother died in a kitchen fire. Emergency contact: Lucy Cartwright, student. Phrase: Your cooker is on. I can smell gas from the corridor.

The third card belonged to Owen Price.

Owen Price. Flat 2404. 09/08/1989. Separated from Bethan Price. Still answers her calls. Afraid of heights. Refused balcony furniture. Phrase: Bethan is downstairs. Lean over and you'll see her.

I went through all nine cards.

Every one bore a name, a flat number, a date and a list of private facts no building-services worker should have known: work rotas, family contacts, fears, vulnerabilities and the exact words Graham had used to persuade them to open doors or remain on the telephone.

Lewis sat on the floor with his back against the wall. He was holding Arthur Pritchard's card.

Arthur Pritchard. Flat 919. 22/11/1991. Widower. Calls daughter Joanne when pipes leak. Afraid of drowning. Wife drowned off Blackpool sea front, 1987. Phrase: I fixed the drain, but you need to test the water for me.

Nadia stood in the middle of the empty living room, staring at the cards spread across the carpet.

'What the hell is this?'

'Surveillance notes,' I said. 'He was watching them.'

'Who was watching them?'

'Graham Wren.'

She took a step back. 'Graham died in July.'

'I know.'

The shoulder bag buzzed.

I looked down.

The canvas vibrated against the floor with a low mechanical hum that should not have been possible.

I knelt and opened the flap.

The answering machine's green display was lit. It read 03:17.

The cassette door was closed, but a tape was visible behind the smoked window, its brown ribbon stretched taut between the spindles.

It was not Leila's tape. Hers remained in the side pocket.

This cassette had a white label along its spine.

Owen Price, flat 2404, 09/08/1989.

Lewis stood.

'Daniel, unplug it.'

'It isn't plugged in.'

The machine clicked.

The play button sank into the casing without anyone touching it. The tape began to turn.

Static filled the room, followed by wind and then Owen Price's voice.

'Bethan, please don't hang up.'

His voice was rough and panicked, barely audible above the wind battering the receiver. He was breathing hard.

'I can't see you. You said you were downstairs.'

A second voice spoke in the background. It was younger than the voice I had heard described in the later calls, but it was unmistakably Graham's.

'Lean out farther, Owen. If she's there, you'll see her. Look harder.'

Lewis seized the machine with both hands and tried to remove the cassette. The eject button would not move. He forced a thumbnail beneath the door and prised it open.

The tape continued spinning.

The flat door slammed shut.

Nadia whirled towards it. I stood. Lewis dropped the machine, but it struck the carpet and continued playing.

Owen's voice carried on, begging Bethan not to hang up.

Nadia's radio squealed. The noise was sharp and metallic, like feedback trapped in a public-address system.

Then Graham's voice came through the speaker, clear and calm.

'Building services requires access to 1806.'

Nadia unclipped the radio and stared at it.

'Graham Wren has been dead for three months.'

The corridor light outside the flat went out. I could see the gap beneath the door, and the yellow glow beyond it vanished into blackness.

Someone knocked once.

Lewis backed towards the balcony.

I looked down at the shoulder bag.

Leila's cassette was spinning inside its plastic case on the floor. Priya's was doing the same beside it, both reels turning without any machine to pull the tape between them. Leila's voice came from her case, thin and distant.

"Do not press erase."

Priya's voice overlapped with hers, clearer, as though she were speaking directly into the room.

"He is not in here with us."

Owen's tape kept playing inside the yellowed BT Response machine. Wind roared through its speaker. Graham told Owen to look down, that Bethan was waving.

Leila's voice rose from the cassette on the floor.

"Every erased call gives him more room."

Priya spoke faster.

"Arthur gave him the radio. If you erase Owen, he gets a body."

The flat door remained shut. The cassette continued spinning on the floor. Owen Price screamed.

Nadia tried to ring Martin. Her phone lit up, but the name on the screen was wrong.

GRAHAM WREN.

She dropped it. The phone landed face-up on the carpet and answered itself. Graham's voice came through the speaker, thin and patient.

"I still have keys to every flat."

Nadia backed towards the wall. Lewis looked at me. I looked at the BT Response machine between us, Owen's tape still playing inside. The green display read 03:17.

It had not changed.

I understood then that destroying the tapes would not stop him. Erasing them had already given him room to move. Arthur Pritchard was gone, and Graham had used that absence to speak through the building radio.

If we kept erasing, he would keep coming forwards. If we destroyed the machine, the calls might scatter, and we would lose the only proof linking his surveillance cards to the voices.

I picked up Leila's cassette. It was warm.

I opened the machine and fitted the tape inside. It drew the cassette into place with a soft click. I took Leila's surveillance card from Lewis and laid it beneath the built-in microphone, the writing facing upwards.

Lewis said, "If this fails, do not let me touch erase again."

I pressed play.

The tape hissed. Leila's voice emerged halfway through a sentence, begging Samir to pick up. She was crying. The sound of her breathing filled the flat.

I leant close to the microphone and said her name.

She stopped.

"My name is Daniel Mercer," I said. "The year is 2024. The man at your door is Graham Wren."

From inside 1995, Leila repeated the words uncertainly.

"Daniel Mercer. 2024. Graham Wren."

Her voice shook.

"He has a master key. He's at my door now."

I could hear Graham knocking on the other side of her door, steady and deliberate.

"Do not ring Samir again," I said. "Call 999 and say Graham Wren is trying to break into Crown Wharf Towers, 18 Water Street, flat 411."

The line changed. It was no longer Samir's answering service. A woman's voice answered, calm and professional.

"999. Which service do you require?"

Leila asked for the police. A moment later, an emergency call handler came on the line.

Leila gave the information exactly as I had told her. She said her name and address. She said Graham Wren from building services was trying to break in with a key.

The call handler identified herself as Sarah Dobson and told Leila to stay on the line. Leila said the door was locked, but Graham had a master key.

Graham began screaming on the other side of her door. The sound was raw and furious. He was screaming because the call was no longer the one he had preserved.

The cassette warped inside the machine. Its plastic shell buckled, and the tape twisted between the reels, but it did not erase.

In the present, the flat door unlocked. The knocking stopped. Nadia's radio crackled once, then returned to ordinary building traffic. Someone downstairs was reporting a fault with one of the lifts.

Lewis pulled out his phone and opened the Manchester Evening News archive. His hands were shaking.

"It changed."

I leant over his shoulder. The article about Leila Rahman was different. She had not fallen from her fourth-floor balcony on 14/06/1995. She had survived an attempted break-in by Crown Wharf building-services worker Graham Wren.

Graham had been questioned but not charged after claiming that he had responded to a reported leak.

Lewis scrolled further.

"Leila later moved to Chorlton-cum-Hardy," he said. "She's alive."

I ejected Leila's damaged tape and loaded Priya's. I placed her card under the microphone and pressed play.

Priya was halfway through leaving a message for Lucy Cartwright. She said someone had been inside flat 1608 and turned on every hob ring.

I interrupted before she could finish.

"The man who turned on your cooker is Graham Wren. Do not wait for Lucy Cartwright. Call 999 before the gas ignites."

Priya redirected the call. She gave her address as flat 1608, Crown Wharf Towers, 18 Water Street, Salford. She told the call handler that someone had broken in and left the gas on.

Lewis's phone buzzed. The article changed again.

Priya Banerjee had survived the gas incident on 03/02/1998, although three neighbouring flats had been badly damaged and two firefighters had been injured.

I loaded Owen's tape last.

It was already playing against us. Graham's voice was urging Owen to lean farther over the balcony rail. Owen was crying. He said Bethan's name. He said he could not see her, but he was trying.

Lewis looked at me.

"He'll listen to Bethan."

Lewis bent towards the microphone and spoke as firmly as he could.

"Owen, step back from the railing. I'm not downstairs. He is lying to you."

Owen hesitated. Wind battered the receiver.

I moved nearer to the microphone.

"Owen, Graham Wren is behind you. Turn around now."

On the tape, Owen turned.

There was a struggle. Graham shouted, "No!"

Owen screamed.

Then a body struck concrete far below.

The present changed violently.

The framed photograph crashed from the wall. Nadia's clothes flickered from her Crown Wharf concierge uniform to a police evidence jacket and then back again. Lewis vomited on the floor beside the machine.

My phone filled with Manchester Evening News notifications that had not existed a second earlier. I opened the report dated 09/08/1989.

Graham Wren had died after falling from a balcony at Crown Wharf Towers during an altercation with resident Owen Price of flat 2404. Owen had told Greater Manchester Police that Graham was attempting to force him over the rail when Owen fought back.

I checked the later reports on Lewis's phone. After Graham's death in 1989, none of the later Crown Wharf fatalities matched the original accidents involving Priya Banerjee or Arthur Pritchard. Redirecting Owen's call had prevented Graham from cornering his later victims in the same way.

But Arthur Pritchard's tape was still blank. Lewis had erased it before we understood the rules.

No article brought Arthur back.

No surveillance card could restore his voice. His blank cassette lay beside the redirected cards while my phone displayed the report of Graham Wren's death in 1989.

Martin came upstairs because the reception desk had received emergency calls from flats that had stood empty for years. I heard his footsteps before I saw him: heavy and deliberate, the stride of someone coming to deal with a problem he had not expected shortly after midnight.

The door to flat 1806 was still open. Martin stepped through it and stopped.

Lewis, Nadia and I were sitting on the floor. The yellowed BT Response machine stood between us, a thin trail of smoke curling from its cassette compartment. The nine surveillance cards lay in a semicircle, folded squares bearing names and dates in careful block capitals. The framed photograph of Crown Wharf Towers lay face-down where it had fallen.

Martin looked at the machine, then at the smoke, then at us.

"What did you do up here?"

For a moment, no one answered.

Nadia moved first. She stood, brushed concrete dust from her knees and took out her phone. Her hands were shaking as she dialled.

"I need to call someone," she said. "Someone who knows how to document this."

Martin frowned.

"Document what?"

Nadia held up one of the cards.

"These were taped behind the frame. They list residents' routines, emergency contacts and phrases Graham used to persuade people to open their doors."

Martin stepped closer and took the card from her. He read it slowly. His expression hardened.

"Graham Wren died in 1989."

Nadia glanced at Lewis and me.

"I know."

In the timeline we remembered, the concierge downstairs had told us Graham had died in hospital in July 2024. That history had vanished with the fall in 1989. Martin knew only the version now supported by every official record.

The person Nadia called arrived about twenty minutes later. PC Rachel Morgan was a Greater Manchester Police response officer, not a detective, but Nadia knew her from previous incidents at the towers and trusted her to handle potential evidence properly.

Rachel stepped into the flat, saw the cards spread across the floor and crouched without touching them.

"Talk me through it."

Nadia explained the museum donation, the surveillance cards hidden behind the photograph and the details recorded on each one. Rachel went back to her vehicle for gloves and evidence bags. When she returned, she photographed the cards where they lay before lifting the first one.

She read aloud.

"Leila Rahman. Flat 411. 14/06/1995. Always calls brother Samir when frightened. Samir works nights at Manchester Royal Infirmary. Will believe a man who says Samir sent him."

She placed the card carefully into an evidence bag and looked at me.

"Where did these come from?"

"Graham Wren's former flat," I said. "His estate donated an archive box to the People's History Museum. These cards were still here when we came to retrieve further material."

Rachel nodded slowly. She was not asking about the answering machine yet. I could see her deciding whether this was evidence of old crimes or something she had no language for.

She picked up another card.

"Priya Banerjee. Flat 1608. 03/02/1998. Checks every hob ring before leaving home. Mother died in a kitchen fire. Believes building services has universal access. Teaches violin and has links to the Royal Northern College of Music."

She bagged that one too.

"These details match old incident reports," she said. "I remember some of the names from the files. Crown Wharf had a string of falls and fires over the years. Graham worked in building services."

"He had keys to every flat," Nadia said.

Rachel stood and looked properly at the smoking answering machine for the first time.

"What's that?"

I hesitated. Lewis said nothing. Nadia glanced at me, then back at Rachel.

"It was in the donated box," I said. "A BT Response answering machine. Graham kept tapes."

Rachel stepped closer. The green display still read 03:17, although the machine had no power supply attached. She reached towards it, then stopped about 15 cm away.

"It's warm."

"I know."

She looked at me again.

"What's on the tapes?"

I could have told her the truth. I could have explained that the machine held active calls from residents Graham had cornered. That the cassettes replayed moments still unfolding somewhere. That pressing erase removed the call as evidence and rewrote the record in Graham's favour.

But Rachel was a response officer standing in a dead man's flat shortly after midnight, and she had to decide whether to open a case based on what I said next.

"The tapes are damaged," I said. "But the cards are enough. They prove Graham was stalking residents."

Rachel considered this, then continued photographing and packaging the cards one at a time. All nine went into separate evidence bags, including the five belonging to callers whose recordings we had not examined in detail.

When she reached for the BT Response machine, I stepped forwards.

"That belongs to the museum. It has an asset label from the donation, and I need to take it back through our formal process this morning."

"It may also be evidence," Rachel said.

"The cards are evidence. The machine is part of a museum accession. I need to document the chain of custody with my supervisor."

She studied me for a long moment. Then she photographed the machine from every side, including its museum asset label, the smoked cassette window and the green display fixed at 03:17. She recorded its details in her notebook and rang the number on my staff pass to confirm my connection to the People's History Museum.

Only after the duty contact confirmed the museum asset label did she allow me to retain it temporarily.

"This is a documented instruction to surrender it at the station by noon today," she said. "Do not alter it, play it or dispose of it. If you fail to bring it in, we'll come and recover it."

"I understand."

Rachel finished packaging the cards and left with Nadia. Martin stayed long enough to ask whether Lewis and I wanted someone to accompany us downstairs.

Lewis said no.

Martin looked at the machine once more, then followed them out.

The flat fell silent.

Lewis stood and picked up my canvas shoulder bag.

"We're not taking that thing back to the museum."

"I know."

"If we do, someone will plug it in."

I nodded. The machine had already switched itself on without electricity. It had played Owen's tape whilst sitting in my bag.

The altered articles remained in the Manchester Evening News archive without the machine being preserved. Keeping it risked another call. Destroying it might undo the changes we had made. But if we returned it to the museum, Helen Whitaker would assign someone to digitise the remaining recordings.

That person would hear Graham.

I checked that the machine was still unpowered, then placed it carefully in the canvas shoulder bag. Lewis gathered the cassettes. We left flat 1806 and took the lift down to reception without speaking.

Martin was behind the desk. He watched us cross the lobby towards the exit, but he did not stop us.

Outside, the air was cold and sharp. The towers loomed over the River Irwell, their cylindrical concrete balconies dark against a sky beginning to pale. It was not quite dawn, but the night had started to thin.

We walked away from Crown Wharf along Water Street, then continued towards central Manchester and the river. The streets were almost empty. Beyond the People's History Museum, we made our way downstream to the riverside path near Trinity Bridge.

The Irwell was black and sluggish, reflecting broken strips of light from the buildings on either bank.

Lewis stopped by the railing and set down the bag.

"If we take it back, someone will switch it on."

"I know."

"And if we leave it here, someone will find it."

I opened the bag and removed the answering machine. Its display still read 03:17. The cassette door sat slightly ajar, with a strip of brown tape visible behind the smoked window.

I set the machine on the ground and took out the surviving microcassettes one by one. Lewis laid each beside its matching card photograph on his phone and photographed every label clearly, preserving the names, flat numbers and dates outside the machine.

Leila Rahman, flat 411, 14/06/1995.

Priya Banerjee, flat 1608, 03/02/1998.

Arthur Pritchard, flat 919, 22/11/1991.

Owen Price, flat 2404, 09/08/1989.

He photographed the other five labels as well. There were nine cassettes in total, matching the nine cards Rachel had taken.

The surviving tapes had become ordinary damaged microcassettes. They did not speak when we handled them. Arthur Pritchard's was still blank.

I put all nine cassettes back in the canvas shoulder bag, keeping them separate from the machine. Then I picked up the BT Response unit.

It was heavier than it should have been, as though something inside had solidified.

The green display flickered once, then steadied at 03:17.

Lewis stepped closer to the railing.

"Do it now."

I carried the machine to the edge and held it above the water. The drop was about 5 metres. I thought of Leila asking what year it was. I thought of Arthur Pritchard choking in his bathroom while Lewis pressed erase. I thought of Graham's whisper, promising that he still had keys.

Then I let go.

The machine fell without a sound. It struck the Irwell with a soft break in the surface and sank instead of floating.

The green display remained lit beneath the water, a small bright rectangle descending into the black.

03:17.

Lewis leant over the railing and watched. I watched too. The light sank deeper, more slowly, until it was only a faint green glow below the bridge supports.

Then it disappeared.

On 30/10/2024, I stood outside the People's History Museum staff entrance with the Wren documentation in my canvas shoulder bag and nothing else left to destroy.

The immediate calls had stopped. Leila's cassette lay silent in its case. Priya's did the same. Owen's tape no longer warmed my hand when I touched it. They had become ordinary damaged media, the sort an archivist might discard after transfer because the oxide was cracked. I knew that damaged acetate-backed archive media could develop a sharp vinegar smell, and that professional association made the faint sourness in the bag feel even worse.

Lewis had photographed every label before we dropped the machine into the Irwell. The altered newspaper reports remained in the Manchester Evening News archive.

That was all the proof I could keep.

Inside, Helen Whitaker sat at her desk with the accession spreadsheet open. She remembered the Wren donation. She also remembered a police officer collecting most of it, creating an official explanation that had not existed before the night at Crown Wharf.

I did not correct her. The altered evidence had entered the record through PC Rachel Morgan, and Helen's memory had shifted to accommodate the revised history, just as the newspaper archive had rewritten itself around Graham's death on 09/08/1989.

The catalogue had changed too. It now stated that I had processed the box on 28/10/2024, although I knew it had arrived and I had first examined the tapes on 26/10/2024.

Helen asked whether I had anything else to digitise from the archive box.

I said no.

She thanked me for handling a difficult estate and said the museum valued fixed-term staff who could work responsibly with the police when sensitive personal material appeared. Then she assigned me a new project involving badges and leaflets from the 1984-85 miners' strike.

I carried the box to my desk and did not open it.

Lewis had resigned the day before. He had sent the email at 03:00 from an address I did not recognise. The message was only two sentences. He said he could not return to the archive and asked Helen to send his final salary documents to his sister's flat in Levenshulme rather than to his own address.

He did not explain why.

He rang me once after that. I was walking towards Deansgate-Castlefield tram stop when his voice came through without a greeting.

"Do not contact me unless Arthur Pritchard's tape starts playing again."

I asked what he meant.

"It's the only blank cassette you kept," he said. "I pressed erase before either of us understood that erasing a call protected Graham and removed the evidence from history. If Arthur comes back, it means Graham has learnt how to reverse what I did."

Lewis wanted to know immediately if that happened so that he could leave the country.

Then he hung up.

I kept Arthur Pritchard's blank cassette in a separate case inside my desk drawer. It sat alone because it was the only unresolved tape. The other detailed calls had been redirected. Arthur's had been erased.

Redirection changed the past. Erasing removed the call and remade the evidence in Graham's favour.

I did not know which fate was worse for the person trapped inside.

I thought about that as I stood outside the museum with my coat zipped against the late-October cold. It was mid-morning. The pavement was empty apart from a man walking his dog near the corner and a delivery lorry idling beside the museum's delivery bay.

My phone buzzed in my pocket.

I pulled it out and saw a missed call. The caller ID displayed my late father Arthur Mercer's old number, disconnected since 2016. It had not rung in eight years. No living person should have been able to use it.

A voicemail notification appeared while I stared at the screen.

I pressed play.

The message was six seconds long.

Arthur Pritchard's voice came first, thin, wavering and wet.

"I'm still in the bathroom. The water is still rising. Graham told me Daniel Mercer knows how to bring people back."

Then a second voice entered at the end.

Graham Wren whispered, "One erased call was enough to teach me where you live."

The message ended.

The screen remained lit. The voicemail timestamp updated to the current morning while I stood frozen on the pavement, my breath clouding in front of me.

Arthur Mercer's disconnected number remained at the top of the screen.

My father's number, silent since 2016, had left me a new voicemail outside the People's History Museum.