The moment the 9 steadied behind the black glass, the man on the phone hung up.
The call timer stopped at 03:00.
A second later, the elevator doors slid apart.
There was no elevator car behind them.
There was a corridor.
Grey-white walls stretched beyond the reach of the lights. The floor was old terrazzo, its black flecks made glossy by damp. Identical doors stood at even intervals on both sides. None had a label, handle or visible hinge. Fluorescent tubes ran along the ceiling in a pallid, unbroken line.
Cold air drifted out, carrying the chalky smell of wet plaster—the same smell Martin Tan had heard, impossibly, through the phone.
He did not approach.
Behind the east elevator on level eight should have been the service shaft, then the outer wall of Tianheng Tower. There was no physical room for a corridor, let alone one this long.
Martin Tan switched his phone to camera mode and aimed it through the open doors. On the screen, the metal elevator doors remained shut. The red indicator above them still showed 3.
He lowered the phone. The corridor returned.
He raised it again. Closed doors on the screen. Open passage to his eyes.
That ruled out the easiest explanation. Whatever was happening, the fault did not belong solely to the lift controls. His camera and his eyes were receiving two versions of the same place, and neither would acknowledge the other.
He started recording, then dragged a desk chair towards the elevator. Its wheels rolled softly over carpet until the front pair crossed the impossible threshold and struck something hard.
The front wheels rested on terrazzo. The rear wheels remained on the eighth-floor carpet.
The chair neither fell nor passed through the wall that should have been there.
Keeping one foot against a rear wheel, Martin Tan bent and touched the inner edge of the threshold. The metal was cold and coated with a thin film of water. When he lifted his fingers, black-grey residue clung to the pads.
He wiped it onto a white tissue, sealed the tissue in an evidence bag and marked the time.
Only then did he realise he was still following procedure. Number, collect, seal. If an anomaly could be broken into enough small facts, he could postpone the question of what it was.
On the phone screen, the elevator doors had never opened. The chair was not visible either.
Martin Tan pressed the wall-mounted open button. Nothing happened. The 9 behind the black glass did not flicker. It looked less like a display than a number that had always been printed there.
He did not enter the corridor.
The first light behind him went out.
Martin Tan turned. The farthest end of the office sank into darkness, taking forty-six empty chairs with it. A second light died. Then a third. Darkness crossed the floor towards him one section at a time.
He stepped back. Carpet still softened his heel.
His reflection in the glass partition moved half a beat late. Martin Tan had already stopped; the man in the glass took one more step.
Move away from the glass.
The warning returned in the caller's exhausted voice.
Martin Tan looked away. He caught the chair by its back and tried to pull it out of the elevator.
It would not move.
The wheels were not caught. The resistance came from deep inside the corridor, as though someone at the far end had taken hold of the same chair and was pulling with exactly equal force.
Another light went out.
Martin Tan released the chair and stepped back.
His second step did not land on carpet. His heel struck a hard surface, and the sound travelled away between two walls.
He looked down.
Terrazzo lay beneath his feet.
Martin Tan spun around. The office was gone. The glass partitions, workstations and rain-lit city had all been replaced by the same grey corridor. The chair lay several metres away, all four wheels on the wet floor.
He had not crossed the threshold.
The threshold had moved behind him.
The elevator doors began to close.
Martin Tan lunged and thrust a hand between them. The sensor did not respond. The metal panels continued to meet, forcing him to snatch his fingers back at the last instant.
They closed without a sound.
The red 3, the black 9 and the open button vanished together. Where the elevator had been, there was now a seamless wall. Martin Tan ran his hands across it twice and found neither a joint nor the black residue from the sill.
His phone was still recording.
On its screen, he stood alone in front of the eighth-floor elevator. The metal doors were closed, the red indicator fixed on 3. The recorded Martin Tan faced away from the camera with his right hand raised, perfectly still.
The real Martin Tan lifted his left hand.
The man on the screen did not move.
Martin Tan stopped the recording and turned the phone face down in his palm.
Only then did fear arrive. Not because of the corridor. Because another Martin Tan remained on the eighth floor—one the system could see.
He forced himself to establish three facts.
The time on his phone was 23:44:37. Battery: sixty-one per cent. Signal: four bars, though every call failed, including the emergency number, which remained stuck on Connecting.
The compass read northeast. He rotated a full hundred and eighty degrees. The number trembled, then settled on northeast again.
He closed the compass. The result had no immediate use.
He righted the fallen chair, removed his staff pass and placed it in the centre of the seat. If the corridor changed again, the two objects might tell him whether matter moved with it.
Then he began to inspect his surroundings.
The place was not assembled at random. Its wall panels, fluorescent tubes, fire cabinets and maintenance seams all matched the eighth floor. A service joint appeared along the skirting every twelve metres, exactly as it should. But every position had been reversed.
On level eight, the fire stairs stood to the left of the elevator. Here they should have been on the right. The curtain wall faced south; these windows opened to the north. The pantry, archive and server room occupied their correct distances in the wrong direction, as if the entire floor plan had been turned over against an invisible mirror.
Only the doors were different.
Every door in the Center had a handle, an access reader and a room number. These doors were smooth from edge to edge. Fine seams proved they could open, but there was no mechanism by which someone in the corridor could open them.
Martin Tan stopped at the nearest one.
He knocked three times.
No answer.
He pressed an ear to the panel. At first there was only the electrical hum of the lights. Then came the rapid clatter of a keyboard and the rasp of paper feeding through a printer—the ordinary daytime noise of the Data Consistency Center.
But it was close to midnight.
At the second door, someone was speaking.
The words were muffled, leaving mostly rhythm and pitch. After a few seconds, Martin Tan recognised his own voice.
“Data Consistency Center. Martin Tan speaking. Confirm the status of the east elevator.”
Then the guard: “Mr. Chen, the east car is on level three...”
The exchange had taken place less than two minutes earlier. Behind this door, it played again at a slightly slower speed, as though the room were preserving sound rather than people.
Martin Tan did not stay to hear the rest.
He headed right. On the inverted plan, that was where the fire stairs should be.
Twenty-seven steps later, he found a digital clock set into the wall above a fire cabinet. Its casing matched the one on level eight. Its display read 22:31:49.
His phone read 23:44:49.
One hour and thirteen minutes apart.
Both sets of seconds changed to 50 together.
Martin Tan waited for a full minute. Neither clock slowed or skipped. They moved in perfect synchrony from two different points in time.
23:45:49.
22:32:49.
Seventy-three minutes. Not a second more or less.
He photographed the wall clock. The image contained only an unlit black panel.
This place was not empty of data, he realised. Its data refused to share a record with anything he had brought inside.
There were no fire stairs at the right-hand end.
A wall of windows stood in their place. Rain ran close against the glass, stretching the elevated railway lights into wavering ribbons. Martin Tan recognised the blue aviation beacon on the roof opposite and the broader shape of the city where it dissolved into rain haze.
It was still Kuala Lumpur.
A train crossed the elevated track. From the eighth-floor office he could have watched it from the same angle—except that the track should have been to the south.
He raised his phone. Through the camera, the windows became a black structural wall.
He stopped taking pictures.
Lightning stirred inside the clouds. Thunder reached the glass three seconds later. The storm was the same storm falling outside Tianheng Tower, and the city had not been returned to an earlier hour. Only the corridor clock had been left seventy-three minutes behind.
Martin Tan looked back. The chair remained where he had placed it, his staff pass centred on the seat. For at least this minute, the corridor had not rewritten his reference point.
He set off towards the other end.
At every door, he scored a short mark beside the seam with the edge of his pass. One. Two. Three. When he reached nine, he looked back. All nine marks remained.
Behind the tenth door, water was running.
Behind the eleventh, someone set a cup gently on a table.
The twelfth was silent. As his phone drew near it, the screen woke by itself. The call that had ended was still in progress.
03:01.
03:02.
There was no sound and no button to end it.
Martin Tan stepped back. The call screen disappeared at once. The phone returned to the lock screen and the time went back to 23:47.
He did not touch the twelfth door.
Farther on, the corridor began to narrow. The lights remained evenly spaced while the walls edged closer together. By his count, he had already walked at least forty metres beyond the outer wall of Tianheng Tower, yet the floor remained level beneath him.
At last, an end came into view.
A single door stood under the final light.
It was the same grey-white as all the others, but this one had a dark brass handle polished by years of use. A narrow black plate was set into the frame on its right.
Martin Tan stopped five metres away.
Don't look at the doorplate.
Now he understood. The caller had not been warning him about the elevator.
A light went out behind him.
Then another.
Darkness was moving towards him again.
Martin Tan checked his phone, then the old clock on the wall. 23:48:12. 22:35:12. The seventy-three-minute gap remained intact.
A third light died.
From the other side of the last door came the faint touch of porcelain. Once, then again—the sound of someone laying bowls and chopsticks for dinner.
Martin Tan walked forward.
Four metres. Three. Two.
The black plate reflected nothing at first. Only when he entered the final pool of light did a white digit surface at its centre.
It was the only numbered door in the entire corridor.
Not 9.
0.