AI The dead man had frost on his eyelashes. That was the first thing wrong.
Quinn ducked under the cordon tape and straightened. Sixty feet below Camden, the old station had sat sealed since '74. No power. No trains. No way in that uniform could find. And yet here was a body, and an anonymous call at 5:40 that had led them down through three locked grates, every one of them rusted shut, every one of them somehow open.
DS Farrow stood over the corpse, gum working, notebook open, his torch tucked under his arm.
"Rave, guv. Has to be. Kids break in, someone ODs, mates leg it." He gestured at the man against the wall. "Or one of those vampire clubs. Camden's rotten with them."
"Vampires tidy up after themselves now?"
"Kids litter everywhere except where it counts."
"No bottles." Quinn turned slowly, her beam crossing the platform. "No cigarette ends. No needles. Tidiest rave in London."
The dead man sat with his back against the oxblood tiles, legs out straight, hands in his lap. Forty, give or take. Good coat, the kind you queued for. Handmade shoes. Clean nails. Not a rough sleeper, not a raver. His skin had gone the colour of old candle wax, and fine ice crystals furred his lashes, his lips, the stubble on his jaw.
Quinn crouched. The air down here was warm and stale, thick as a held breath. She'd been sweating on the stairs.
"ME's guess?"
"Won't guess." Farrow flipped a page . "Says the body's cold wrong. Those were his words. Cold wrong. No lividity either, and before you ask, he doesn't know why."
"Blood pools, Farrow. That's the one thing blood reliably does."
"Not in him, apparently."
She shone the torch behind the man's ear. The skull had caved there, a depression the size of a hen's egg. Dry. Grey at the edges. Not a drop on the tiles, not a thread of it on his collar. Quinn had stood over a hundred bodies and every one of them had leaked. It was the first thing they did and the last.
"Bodies leak," she said. "This one didn't."
"Dumped, then. Fridge somewhere, carried down, posed with the spooky props." Farrow nodded at the black wax pooled along the advertising frames, dozens of stubs burned to nothing. Above them, yellowed posters for films nobody remembered wore new haloes of soot. "Kids and their theatre."
Quinn took the dead man's wrist. The watch face read 3:07, stopped. She lifted his hand and opened the fingers, which gave way with the stiff reluctance of rigour. In his palm sat a disc of bone the size of a two-pound coin, one edge notched, the surface polished by handling. Not jewellery. Not currency. He had died holding it.
"Goth tat," Farrow said.
"He gripped it hard enough to leave the shape in his skin. People don't die clenching tat."
She checked the coat. A wallet, two hundred in cash, no cards, no licence. A mobile, screen whole, battery at eighty-seven per cent, dead as a brick. And a paper slip, folded twice. She opened it under the torch. A call slip from the British Museum, the restricted archives, a shelf mark in pencil, dated Tuesday. She bagged it and said nothing.
"Shoes," she said.
"Handmade, like you clocked."
"Clean soles." She rocked back on her heels. "Sixty feet of tunnel filth between here and the street, and his soles are clean. So either he floated, or somebody carried him. Except there are no drag marks, no scuffs on the toes, and his coat's sitting flat under him. He sat down here under his own steam, Farrow. He chose this spot."
"So he walked in. Fine. Rave."
Quinn stood and looked at the platform properly for the first time, the way Morris had taught her, not at things but at shapes . The dust lay thick everywhere, grey velvet on every surface, except it didn't. Rectangles broke it. Dozens of them, long and low, ranged down both sides of the platform in two orderly rows. Ring stains inside the rectangles, small ones, jar-sized. Wax drips at each corner, in neat, regular points, like lanterns had stood there.
"Count them," she said.
"Count what?"
"The stall marks. Twenty, twenty-five. Ring stains where goods sat. Wax where lights stood." She walked the row slowly . "This wasn't a party, Farrow. Parties are chaos. This was a market. A hundred people, minimum. Stalls, stock, customers. All of it gone in a night."
"Raves have stalls. Selling water, selling pills."
"Then where's the litter?" She stopped and let the question hang. "A hundred people came down here. Uniform's got the stairs logged. One set of prints going down, running, that's our anonymous caller. One set going down steady, unhurried, and that's him." She nodded at the dead man. "Nothing else. A hundred people came down here and none of them left by the stairs."
"Track walks. They went down the tunnel, came up at the next station."
"Both ends are sealed. Maintenance welded them in the eighties, I read the plate on the way down. And the rails are rusted to the sleepers. Nothing has rolled through here in fifty years."
Farrow's gum stopped for a second, then started again. "So what's your theory, guv?"
Quinn didn't answer, because she had found the other prints.
They began at the far end of the platform, at a bricked arch, and they were bare. Long, narrow feet, the toes splayed wide, pressed deep into the dust. They walked the length of the platform with a stride she had to stretch to match, and they ended two metres from the body. After that, nothing. No return. Whoever made them had come out of a brick wall, walked to the dead man, and stopped existing.
She was aware, distantly, of a smell under the wax and the damp. Something resinous, frankincense maybe, sweet and old. She had smelled it once before, in a stairwell in Whitechapel, three years back, the day they carried Morris out. Nobody had logged it then either.
"Guv?"
"These start at the wall." She kept her voice level . "A barefoot man walks out of a bricked arch, crosses to our body, and vanishes. Tell me how that fits your rave."
Farrow came and looked. She watched him do the arithmetic, watched him choose not to. "Dust's disturbed everywhere. Could be anything. Old prints, could be from before the place was sealed."
"They're on top of the stall marks. They're fresh."
"Then the SOCOs will love them." He clicked his pen. "Look, guv. We write it up, forensics crawl over it, and it turns out some performance art lot hired the place off a bent contractor. Happens more than you'd think."
Quinn reached into the dead man's coat once more, into the inside pocket she'd left for last, and brought out a compass. Small, brass, green with verdigris, its face etched with marks she couldn't read. The glass was uncracked. The needle did not point north. It pointed, steady and certain, at the bricked arch at the end of the platform.
She turned in a slow circle. The needle held its line like a dog on a scent.
"Broken," Farrow said.
"Compasses break towards north. They stick. They spin. They don't pick a wall."
She walked towards the arch. The bricks were newer than the rest of the station, the mortar grey as porridge, and the cold grew with every step, a cold with intent, so that by the time she reached the wall her breath had started to smoke. On her left wrist, her watch , the worn leather strap she'd had since before Morris, since before everything, ticked, and then didn't. She looked at the face. 3:07.
"Farrow."
"Come again?"
"His watch stopped at 3:07. So has mine."
"Coincidence. Cheap batteries."
She raised her hand and knocked twice on the bricks. Solid. Dead. The way a bricked-up wall should sound.
From the other side, unhurried and close, three knocks came back.
Farrow's gum stopped. Neither of them moved. The resin smell thickened, sweet enough to taste, and then the work light at the platform's centre guttered and died, and Farrow's torch died with it, and the dark came up around them like water.
"Guv." His voice had gone thin. "Torch is dead. Radio's dead."
"Stand still."
Above them, the station tannoy, disconnected since before either of them was born, crackled. Static gathered itself into something fond and patient, the shape of a station voice, and the words came stretched and wrong, like a record slowed.
"Mind... the gap."
Then the rails began to sing. Quinn knew that sound , every Londoner knew it, the thin rising whine of an approaching train, and wind came out of the dead tunnel, warm and smelling of hot metal, and far down the line a light swung and grew.
"That line's dead." Farrow was shouting now. "Guv, tell me that line's dead!"
The compass in Quinn's palm had stopped pointing at the wall. It pointed down the tunnel, at the light, and the light was getting bigger, and the rails were screaming , and the whole impossible weight of it was slowing , slowing, coming in to stop at a platform that had been closed for fifty years.