AI The first thing that hit Harlow when she climbed down the rusted service stairs leading to the abandoned Camden Tube station was copper. Thick, coppery blood, sharp enough to cut through the mildew and burnt ozone that clung to every tiled surface. She stepped over a cracked chunk of platform edge, her boots silent on the concrete, and the uniformed officers loitering by the murder scene peeled back like rotting wallpaper. Eighteen years on the force gave her that effect, the same military bearing that had her holding her spine straight enough to rest a textbook on, her closely cropped salt-and-pepper hair lying flat against her skull, the scuffed leather watch on her left wrist ticking in time with the distant drip of a leaky pipe. She’d spent three months hunting this market. The Veil Market, the underground black market beat cops whispered about only when they thought no brass was listening , that sold things that never showed up on any police report. She’d traded a seized cask of faerie wine for a bone entry token two weeks prior, planned to bring a raid team in at the end of the week. Now she was here for a murder.
She paused ten feet from the body, a man in a grease-stained leather apron, his face pressed into the concrete so only the white of one bloodshot eye showed. Maeve, the CSU lead who’d worked half a dozen homicides with her, knelt beside the fresh chalk outline she’d drawn, her gloved fingers prodding the victim’s clenched fist .
No forced entry, Quinn. The steel door at the top of these stairs? City records say it got welded shut three days ago, part of the council’s plan to board up abandoned Tube stops before the winter tourist rush. No pried metal, no scrapes, not even a scratch on the lock. The only other access is the old tunnel to Kentish Town, caved in fifty yards down. No one’s been in or out of this space except us.
Harlow’s sharp jaw tightened. That was the first crack in the story. She scanned the platform, the splintered crates of shattered glass lining the walls, the half-folded canvas stall collapsed near the tunnel mouth, its oak frame split clean through. Maeve stood, wiping her hands on her jeans, and nodded at the victim’s temperature strip.
Twelve hours old, max. Rigor hasn’t set in fully. How does a man get locked in a sealed concrete box for three days, turn up dead only half a day ago? It doesn’t add up.
Harlow didn’t answer. She scanned the small crowd until she spotted Eva Kowalski, pressed against the far tile wall, her round glasses slipping down a freckled nose, the strap of her worn leather satchel digging into her shoulder, curly red hair falling into her face. Harlow had found Eva six months prior, digging through the British Museum’s restricted archives, chasing reports of the same unexplained supernatural deaths that had taken her partner, DS Morris, three years prior. Eva held a master’s in Ancient History from Oxford, knew the unreadable sigils carved into the wall of Morris’ murder scene that every forensics expert in the city had dismissed as graffiti. Harlow had pulled her in as a civilian consultant, paid her out of her own pocket to chase loose ends, and this market was the first lead that tied back to the string of strange deaths plaguing London.
Eva tucked a strand of hair behind her left ear, her nervous tell, and pushed off the wall, stepping around a uniformed officer who glared at her for veering too close to his radio. She stopped beside Harlow, her gaze locking on a thin, glowing silver crack in the tunnel wall that Harlow hadn’t even noticed, seeping into concrete like melted tin.
You didn’t drag me out here for a regular stabbing, did you?
No. Harlow nodded at the victim’s fist, the one Maeve had prodded. He’s clutching something.
Eva leaned in, pushing her glasses back up her nose. That’s a Veil Compass. I’ve only read about them. Shade artisans make them, sell exclusively at the Veil Market. The needle points to the nearest supernatural rift or portal. See the verdigris on the brass casing? The sigils etched into the face are protective wards, keep the user from getting shredded by interdimensional drift.
Maeve scoffed, crossing her arms. Interdimensional drift? What is this, a bad sci-fi movie? We’ve got a dead guy, and you’re spouting magic compass nonsense?
The market doesn’t pick a new location and move stock in vans. Eva’s voice didn’t rise, didn’t waver, she stared at Maeve like the woman was the one spouting lies. It travels through a rift, a tear between this world and the in-between that lets it pop up in a new abandoned spot every full moon. That entry door you say was welded shut? It doesn’t lock with bolts. It seals itself automatically when the rift starts to relocate, to keep random looters from wandering in mid-move. If the rift collapses mid-transfer, that seal stays locked. Everyone and everything that didn’t cross through gets trapped here. That’s why no one got in or out. The market never left.
Harlow pushed past Maeve, kneeling beside the victim to pry his clenched fist open. The small brass compass fell into her gloved palm, heavy and cold, its needle spinning in wild, tight circles that never settled on a single direction. CSU techs lifted cameras to snap photos, but Harlow barely noticed, her gaze snagging on the stab wound peeking out from the victim’s apron. A thin, silver-tinged burn ringed the edges of the puncture, identical to the mark she’d seen on Morris’ chest when they pulled his body from the Thames three years prior. Every forensics expert in the city had told her that mark was impossible, that no chemical, no knife, no fire could leave that precise, glowing silver edge. She’d dismissed the only witness account of a “tall, clawed man” running from the dock as a drunk’s ramblings, let the case go cold because she couldn’t believe in things that didn’t fit in a police report. She wouldn’t make that mistake again.
The needle’s supposed to point at the nearest rift. Harlow turned the compass over, running her thumb over the sigils on its back. Why’s it spinning?
If the rift collapsed, it has nothing to lock onto. Eva knelt beside her, catching her slipping satchel before it could dump its load of books onto the concrete, and pulled out a dog-eared grimoire, flipping to a tabbed page. If someone destabilized the rift on purpose, blew it apart while half the market was still crossing , they could trap anyone they wanted inside, kill them before anyone even knew the market was stuck . That wound on his chest? If the killer used a silver blade, that burn would form instantly. Silver burns anything tied to the in-between, but it leaves that mark on humans too, for 12 hours before it fades.
Maeve called from the body’s other side, pulling a thick leather wallet stuffed with cash from the victim’s apron pocket. Robbery’s off the table. He’s got thousands in untraceable notes, a stack of bone tokens just like yours, Quinn. Nothing’s missing.
Killer didn’t want money. Harlow’s gaze flicked to the tile a foot from the body, where a set of three deep, clawed gouges faded even as she watched, the concrete smoothing over like they’d never existed. No CSU tech had spotted them. No one but her had been watching the ground close enough to catch the flash of the marks before they vanished. She leaned forward, pressing her gloved palm to the spot, and it was smooth, unblemished, no trace of the violence that had scored it half a day prior. They wanted the market trapped. They wanted this man dead, and anyone else who got stuck here with him.
Eva’s finger stabbed at a line of handwritten text in her grimoire, her face pale. If a rift is collapsed with enough force, it leaves a residual pinprick portal open for exactly 24 hours. Only big enough for one person to cross through. The killer got out 12 hours ago, right after he stabbed this vendor. The main door’s sealed to everyone else, but he can cross back through that tiny portal any time he wants. He can come back.
Harlow slipped the compass into an evidence bag, zipping it shut, and turned to Maeve, her voice sharp enough to cut steel. Pull every man we have out of here in the next hour. Seal the service stairs with concrete, post a 24/7 armed guard, no one gets in, no one gets out. Call the chief, tell him this is a toxic mold biohazard, that we need it contained before spores spread to the Camden high street. Lie if you have to, but no one comes near this station until I say so.
Maeve opened her mouth to argue, but Harlow’s stare cut her off. She nodded, turning to bark orders, herding officers and CSU techs toward the stairs, packing up gear in a rush.
Eva stayed, her satchel slung over her shoulder, staring at the silver crack in the tunnel wall, the faint glow of the residual portal bleeding into the dark. You really think he’ll come back?
Harlow looked down at the body, at the fading silver edge of the stab wound, at the Veil Compass in its evidence bag, its needle still spinning even through the plastic. She’d missed her chance to catch Morris’ killer once. She wouldn’t miss it again.
I hope he does.