AI The call came in as a 10-91 down an abandoned spur off Camden Town, which was already wrong. There were no 10-91s down abandoned spurs. There was only piss and rats and track workers who'd learned to look the other way.
Harlow Quinn ducked under the tape at the service gate behind Camden High Street and felt the air change. Cold came off the concrete like breath from a freezer. She checked her watch by habit - the worn leather band on her left wrist was sweat-darkened after eighteen years, the face scratched - 02:17. Somewhere above, it was last call. Down here, it was another country.
"Detective, you didn't have to come," said the uniform by the gate, but he stepped aside fast enough. Her bearing did that, even in plain clothes. Military precision in a cheap windbreaker, closely cropped salt-and-pepper hair still damp from the walk from the car, sharp jaw set.
"I like the unusual ones," she said.
The tunnel stairs went down too far. The green tiled walls of the old station were still there beneath a century of soot and spray paint, but they'd been dressed up. Fairy lights strung on live wire that shouldn't have been live. Stalls built from old luggage carts and scaffolding, tarps that stank of incense and copper. Half of them had been knocked over in a rush.
In the middle of what had once been the southbound platform, where the tracks had been boarded over with mismatched plywood, a man lay on his back.
And standing over him, in flat shoes that were soaked through, was Eva Kowalski.
Quinn stopped short. "You are kidding me."
Eva pushed her round glasses up her nose with one finger and immediately tucked a damp curl of red hair behind her left ear. Her freckled complexion was too pale. The worn leather satchel full of books she always carried was clutched against her chest like a shield.
"Harlow - Detective Quinn. They called me," she said quickly . "I mean, not you. The Met called the Museum. When they saw the-"
"The what?" Quinn cut her off and came closer. She'd known Eva peripherally for months, a little tagalong researcher who showed up whenever occult got scribbled on a case file. Twenty-six years old, looked twenty, with a master's from Oxford and a nervous habit that broadcast every lie she'd ever told. She wasn’t supposed to be at an active scene.
Eva pointed at the dead man.
He was late twenties, maybe thirty, shaved head tattooed with fine silver lines that weren't ink, they were faintly raised, like scarification that caught the light. He wore an army surplus coat too heavy for summer. His chest was open. Not cut — torn, from sternum to navel, edges blackened as if burned. No blood. That was the first thing that didn't add up. A wound like that should have emptied him. The plywood beneath him was clean.
"His name was Reese Alden," Eva said, her voice dropping . "He was a Shade artisan. He crafted things. Vetted pieces. He ran a stall here."
"A market," Quinn said flatly. She looked around. Jars of things that shouldn't have been in jars. Bundles of herbs that smelled metallic. Small bones tied with red thread. "The Veil Market."
Eva blinked. "You know it?"
"I know every time someone finds a body in an abandoned Tube station beneath Camden that the paperwork says doesn't exist, someone from your department turns up and says 'Veil' like it's a prayer. Entry requirement is a bone token, moves every full moon, sells banned alchemical substances." Her brown eyes swept the stalls. "Someone should tell it that it's a crime scene."
"It's still a ritual killing," said another voice. DS Park, who'd caught the call before her, came up holding two coffees and looking grateful for a third party. "Look at him. That's textbook. Some buyer tried to do an empowerment rite, botched it, his heart burst or something. Look at the sigils."
He nudged the dead man's hand with his boot. Clutched in it was a small brass compass. Even from a distance Quinn could see the patina of verdigris over the casing, green crusting the hinge, the face underneath etched with protective sigils that made her think of Morris. DS Morris, three years dead, found cold in a flat with symbols like that on the walls and no blood in his body despite the hole in his neck. Unexplained. The box marked unsolved and unspoken .
"Don't kick him," Quinn snapped. Park flushed.
"It's not a rite," Eva said, tucking her hair again, again. "His stall is two down, this isn't where he would work. And this -" She swallowed. "The compass. That's a Veil Compass. It points toward the nearest supernatural rift or portal. Shade artisans craft them. It's too valuable to be just left on him like - like leaving cash in a dead man's hand."
"Theatrics," Park said. "Killer wants us to know he's big juju."
Quinn crouched. She didn't touch the body, not yet. She put her weight on the balls of her feet, knees out, like she was in the military again. She looked.
No blood. No splatter. No coagulation. The blackened edges of the wound weren't burned, not really . They were dry. Desiccated, like meat left in the sun. The air over his chest shimmered faintly, heat-haze off tarmac, though the tunnel was freezing.
The fairy lights overhead buzzed.
"The lights shouldn't work," Quinn said out loud. "The city cut power to this spur in '94."
"The Market borrows," Eva whispered. "There are rifts. Leakage."
Park sighed. "Detective, with respect-"
She ignored him. Her gaze traced the man's other hand. Empty, fingers curled in a way that wasn't rigor, but grief. Holding something that wasn't there anymore. His pockets were turned out. Not ransacked - too neat. One pocket still had its lining deliberately pinched out, as if the searcher had been careful, methodical , the way Quinn searched a flat.
"He was robbed," she said.
"That's what murder victims usually are," Park said.
"No." She stood, her height making both of them look up. At five-nine she wasn't tall but she knew how to use it. "If it's a ritual gone wrong, why search him? And if you searched him after, why leave the compass? You said it yourself - valuable."
Eva was already nodding fast. "The compass would be the first thing taken. And a bone token - everyone who enters has to have one. Where's his? To get in and out?"
Park frowned. "Maybe the killer took the token to get out."
"Then how did you lot get in?" Quinn asked him. Park blinked. "No. Someone left the doors open. I came through a service gate. That means whoever killed him wanted people to find him fast. Before the Market could move again."
She stepped over the body, careful, and walked to where the artisan's stall had been tipped . Glass vials shattered . Something glowed faintly purple where it pooled. She didn't touch it.
Behind the stall, the plywood boarding the tracks had been pried up. Just a few inches, a black gap breathing cold. Cold enough that her breath finally showed.
Eva came up beside her, satchel bumping her hip. "Oh."
"What?"
"The compass." Eva pointed back at Reese's hand. "Look."
In Quinn's line of sight, she could still see it. The brass casing, the green patina. The needle inside wasn't still. It wasn't pointing at the corpse. It wasn't pointing north.
It was spinning , slow, lazy, then snapping to point straight down - into the dark gap beneath the boards - then spinning again, stuttering, like it couldn't decide.
"Face etched with protective sigils," Eva murmured, quoting something Quinn assumed came from one of her books. "It points toward the nearest supernatural rift or portal. When there's a fresh one, it - it can't settle. It's overwhelmed."
The last piece clicked. Three years ago, Morris had been found in a sealed room. No entry. No blood. A wound with no bleeding. She'd been told it was impossible.
She looked down into the dark under the platform. There was no blood on the plywood because he hadn't been killed on the plywood. He'd been pulled up through. Dragged from below, from wherever the Market brushed up against something else. The wound wasn't a cut. It was where something had held him while something else searched him.
"Someone opened a rift here," Quinn said. "Not a ritual. A door. He was trying to close it, maybe. Or someone opened it and he got in the way."
Park stared. "That's - you can't put 'someone opened a rift' in a report, Detective."
"Watch me." She pulled out her phone, flipped on the flashlight, and shone it down into the gap. The light didn't go far. It hit dust that hung wrong, not falling. A crude circle had been chalked on the underside of the plywood, already half smeared, with a symbol at its center she recognized from Morris's flat. And in the dust, fresh boot prints, two sets, one dragging.
Eva made a small, hurt sound and tucked her hair behind her left ear so hard her hand shook.
"Two people came through," Quinn said, and her voice was stone quiet now, the voice she used when she was right and hated being right . "One took whatever he was carrying - not the compass, something else, something pockets-sized, alchemical maybe. The other left the token stashed somewhere to keep the door open until they were gone, then ditched. That's why the lights are still on. The leak is still leaking."
She clicked off the light. Her watch ticked loud in the cold.
"We need to close that gap before the full moon," Eva said. "If the Market moves while that rift is open-"
"It won't be a market anymore," Quinn finished. She looked at Reese Alden's body, at the artisan's hand still curled around the compass that had tried to protect him and failed. "Park, I want forensics to stop bagging incense and get a thermal unit down here. And find me every bone token in this place. Bag them. Whoever our two are, they walked out through Camden without one, which means someone lent them theirs. Someone's scared and lying."
Park finally put the coffees down.
Quinn knelt again and, with gloved fingers, gently pried the small brass compass from the dead man's grip. The needle jumped, wild, and settled again, quivering, pointing down into the dark.