AI Harlow Quinn yanked the driver-side door open so hard the hinges complained, then hauled the suspect out by the collar before his feet found purchase.
He landed on wet tarmac with a slap, breath turning to steam in the streetlight glare. The man’s hands flew up, palms out, surrender scripted on his face. The kind of performance that worked on uniformed coppers with time to kill.
Harlow didn’t buy it. Her fingers stayed locked in fabric, her thumb hooked under his collar seam, feeling for something that didn’t belong.
“Turn around,” she said.
He smiled like he’d heard the line before. “Detective. You shouldn’t be here.”
The wind slapped rain into her eyes. She didn’t blink. “I shouldn’t be anywhere. That’s your pitch?”
He tried to twist out. Harlow used her weight, not strength, and drove him flat against the bonnet with a sharp knee to the thigh that made him bite down on a noise.
A car horn blared somewhere down the road, drowned fast by the hiss of tyres on puddles. Neon from a late-open shop smeared itself across the man’s cheekbones, green and broken.
Harlow kept her voice low. “Name.”
His jaw worked. “Elias.”
“Elias what?”
He looked past her shoulder, toward the alley that had swallowed him ten minutes ago. His gaze snagged there, tense. Not fear of her. Fear of what waited behind her.
Harlow followed his eyes.
A movement at the mouth of the alley. A thin figure in a hood, only the face visible, pale as drainwater. The hooded person didn’t hurry. They watched like they’d placed bets.
Then the suspect jerked his chin. Not at the alley. At Harlow’s left wrist.
Her worn leather watch .
She felt it before she understood it, a tug at the edge of sensation, like the air itself leaned closer to listen. The watch face didn’t glow, didn’t flash. It just sat there, heavy and familiar , the kind of object that belonged on a desk drawer and never in a street fight.
Harlow tightened her grip on Elias.
“You brought someone,” she said.
Elias’s smile broke. “You brought her.”
Harlow’s throat tightened, and her partner’s name rose like a reflex she’d trained not to touch. DS Morris. Three years ago. Unexplained circumstances. Supernatural origins.
She didn’t let the memory complete the thought. She shoved it down with force.
“Who’s ‘her’?” she demanded.
Elias didn’t answer. He went still, then moved like a marionette cut free, shoulders rolling, collar sliding under her fingers as though his skin had turned slick. Harlow reacted, reaching again, grabbing air where fabric had been.
He wasn’t escaping through speed. He was escaping through absence.
The hooded figure at the alley mouth shifted, and the street behind Harlow flickered . It wasn’t lights. It wasn’t smoke. It was like the world stuttered for half a heartbeat, the edges of reality tearing paper-thin.
Harlow straightened, heart kicking hard enough to make her ribs ache. She turned in a complete arc, scanning for the spot where Elias had vanished.
“Where—” she started.
The hooded person spoke over her, voice muffled by wet wool. “You chase tracks you can’t read.”
“I can read them,” Harlow snapped. “You want me to?”
The hooded figure stepped closer, rain beading on the fabric without soaking through. That detail landed in Harlow’s mind with the cold certainty of a case file closing.
Elias reappeared beside her, not from the alley, but from nowhere at all, his hands already in motion . He tugged something from inside his coat, small and hard, wrapped in oilskin.
Harlow saw the glint and fired reflexively, slamming her fist into his forearm to keep him from throwing it.
The impact jarred Elias’s grip. The oilskin bundle hit the tarmac and burst open. Something inside chimed once, a clean note swallowed immediately by rain, then the air changed.
The alley mouth widened.
Not physically. Not with architecture. With permission.
A seam formed where brick met shadow, and shadow pulled itself into a doorway like fabric drawn through a ring. The hooded person backed away, calm as a priest stepping back from the altar.
Harlow’s pulse hammered. She’d read reports. She’d sat through briefings where men in suits tried to sound scientific about things that didn’t behave. She’d learned to live with the fact that the world held cracks, and people used them to crawl out of consequence.
Elias backed toward the seam, eyes bright. “You’re late,” he said.
“To what?” Harlow demanded.
“To the only part that matters.” He glanced at her watch again, then at the hooded figure. “You’re deciding which door you want to knock on.”
Harlow’s hand hovered near her holster, then dropped. The gun wouldn’t matter if the laws of matter decided to take the night off.
She took one step toward the alley seam and felt the pull on her skin, a subtle pressure like the beginning of a deep dive. Her ears popped without water. Her stomach twisted as if gravity had turned its head.
“Detective Quinn!” a voice barked from behind her. “Quinn, we’ve got a possible witness. Don’t go—”
DSI Hargreaves, someone from her unit, a phone in his hand, breath steaming. He’d been too far to see the flicker . Now he ran toward her, slipping on wet paving stones.
Harlow didn’t look back. She kept her focus pinned to Elias as he retreated into the opening.
“I’m not leaving him,” she said, and the words came out harsher than she intended .
Elias smiled like he’d heard that sentence from her before, in a dream or a report.
He vanished into the seam.
The seam tightened like a drawstring pulled by unseen fingers. The hooded figure lingered half a second longer than it should have, then lifted a hand to Harlow’s watch .
Not touching. Threatening.
“You’ll lose the thread,” the hooded person said. “Morris lost his, and you still think you can follow without paying.”
Harlow’s jaw locked. The name didn’t soften her. It sharpened her.
“You don’t get to use him,” she said.
The hooded person’s eyes flicked , brown to brown, same colour as hers, but not the same world. “He wasn’t the only one.”
Then the seam snapped shut.
For a beat, Harlow stood in the alley’s mouth staring at brick and shadow like they might confess. Rain ran off surfaces that looked normal now, like the city had never opened its throat.
Behind her, Hargreaves skidded to a stop, grabbing at his radio. “Where’d he go?”
Harlow pointed to the spot where the seam had been. “Right there.”
Hargreaves frowned, then looked down at the tarmac. “There’s nothing. Quinn, we can’t—”
“We can.” Harlow cut him off. “We choose. I’m choosing.”
She turned her attention back to the alley shadow. Her hand moved without thinking, pressing her fingers to the brick. Cold. Solid. Ordinary.
But ordinary couldn’t hold that kind of lie.
Harlow took out her leather watch and flipped it, watching the worn rim catch the streetlight. There, where the strap met the case, a thin line of dried blood darkened the leather. Not hers, she didn’t believe. It looked older than her memory.
She opened the back with a fingernail and leaned in.
Inside, where the mechanism sat, something ticked against the metal. Not a normal tick. It sounded like a knuckle tapping from the other side of a wall.
Hargreaves’s radio crackled. “Quinn, you’re going to get yourself—”
“Get out of my way,” Harlow said.
She slipped the watch shut and pressed her thumb to the seam point again, harder. Pain flashed up her hand.
The brick gave.
Not breaking. Yielding, like it had decided to stop pretending.
Shadow spread from her fingers, crawling outward, thickening until it became an entrance.
Harlow inhaled and stepped in.
The world folded.
Rain did not follow her. Sound did. It came down with her in layers, rushing like water forced through pipes. Somewhere below, something clicked, then hissed, then echoed with metallic repetition.
Harlow hit damp stone and stumbled, catching herself on a wall that felt too smooth to be old masonry. The smell hit next, sweet and chemical, like burnt sugar and antiseptic mixed together.
She straightened, shoulders square, military precision arriving faster than fear.
Around her, underground corridors stretched and curved. Candles burned behind glass, their flames blue. Old maps covered the walls, pinned in overlapping layers like someone had decorated with stolen histories. Photographs sat in frames, black-and-white faces staring out from before colour learnt to exist.
And there, in the middle distance, the green neon sign of a bar flickered above a doorway.
The Raven’s Nest.
But this wasn’t Soho street level. This was below, beneath the city’s skin.
Harlow’s badge felt heavy. Her gun felt silly.
A walkway ran ahead, wet underfoot despite the lack of rain, as if the earth sweated in anticipation . Posters clung to pillars. Some warned in block capitals. Most promised in cursive, the letters curling as if they lived.
Bone tokens hung from hooks at various heights. Harlow’s gaze snagged on one: ivory-white, shaped like a small hand bone, engraved with a symbol that made her teeth ache. An entry requirement.
She’d heard of the Veil Market in whispers and files that never reached daylight. A hidden supernatural black market selling enchanted goods, banned alchemical substances, and information.
It moved locations every full moon.
It didn’t need to move right now. It had already followed her down.
Footsteps approached from the right, quick and quiet. Tomás Herrera stepped into view like he’d been waiting behind the corner.
Olive skin damp with sweat rather than rain. Short curly dark hair. That scar on his left forearm pulled taut as he held his hands low, palms open.
His Saint Christopher medallion glinted at his throat.
“You shouldn’t be here,” he said, and the words didn’t sound like warning so much as fact.
Harlow stared him down. “You knew.”
Tomás’s mouth tightened. “I knew you’d come after him.”
Elias’s trail led forward, the air disturbed as if someone had dragged a chain through it. Harlow followed the feeling instead of sight, moving toward a corridor that narrowed into a stairwell.
At the top of the stairs, a gate of iron bars arched into darkness. No lock. No chain. Just the sensation of a boundary.
Tomás stepped closer, voice urgent now. “Listen. The Market doesn’t like detectives. It likes people who can pay.”
“I pay with questions,” Harlow said.
“That’s not payment.” Tomás’s eyes flicked to her watch . “Your watch is a debt.”
Her hand tightened around nothing. She hadn’t drawn her gun. She didn’t want it to fail at the moment it mattered.
Hargreaves’s voice echoed faintly above, distant through layers of stone. “Quinn! Stop!”
Tomás flinched at the sound. He shouldn’t have. Harlow could hear him swallow.
“I can get you out,” he offered, as if escape hadn’t already changed its meaning .
Harlow looked down the stairwell.
The darkness below shifted, not with movement but with intention . A low murmur rose from beyond, voices woven together, laughter and bargaining and a thin undertone like static on a radio left too close to a speaker.
Elias would have gone there.
She could follow into unfamiliar and potentially dangerous territory, or she could pull back, keep Hargreaves safe, keep herself in the known world.
She made the decision with her feet.
She descended.
Stone swallowed her steps with dull thuds. The walls tightened closer. The air grew warmer, carrying scents of iron and spices and something rotten trying to pretend it belonged.
At the bottom, stalls opened into a tunnel-like market. Goods hung from racks and lined shelves: glass vials filled with shimmering liquids, odd tools that looked sharpened by prayers, talismans carved from bone and wood and metal that didn’t rust.
People moved in quick, purposeful currents. No one looked directly at her. Several pretended not to see her, which meant they saw her perfectly .
A clerk in a mismatched suit sat behind a counter that looked built from salvaged doorframes. A sheet of parchment slid under a glass pane without any hand touching it. The clerk’s face stayed hidden behind a mask shaped like a bird’s beak.
Harlow approached anyway. The ground under her boots felt subtly uneven, like it remembered a different shape.
“Elias Herrera,” she said. “Where did he go?”
The clerk’s head tilted.
“Name wrong,” it replied, voice too smooth . “You said the wrong man.”
Harlow’s eyes narrowed . “Don’t correct me. Answer.”
The clerk lifted a hand. Its fingers clicked like bone on bone, and the glass pane shimmered , reflecting not her but Elias’s path, a line of light snaking through the crowd .
The light stopped at a door carved into the tunnel wall, the wood dark and old. A symbol burned into it, familiar in the way a nightmare repeats itself.
Tomás grabbed Harlow’s sleeve.
“Quinn,” he said, and the way he said it made it sound like a prayer he didn’t believe in. “That door leads somewhere the Market doesn’t advertise.”
Harlow shook him off without violence. “Then you should know what Elias wants.”
Tomás’s jaw flexed. He looked over her shoulder, scanning for threats. “He wants an arrangement.”
“An arrangement for whom?”
“For you,” Tomás said, and the words landed like a fist . “For the case you think you’re solving.”
Harlow refused to let that sink in. She took another step toward the carved door.
The instant her shadow reached it, the symbol flared. The air tightened. Her ears rang, and the tick she’d heard in her watch answered it, louder now, like a heartbeat syncing with a second heart somewhere behind a wall.
Voices from the stalls hushed. People stopped bargaining. The market turned its attention like a school of fish pivoting all at once.
Harlow realised the decision she’d made wasn’t only personal.
It made her visible.
A figure moved near the door, hooded and still, watching her approach. Not the same hooded person from street level. This one stood too straight, too controlled, as if it didn’t sweat, didn’t blink, didn’t need to pretend.
When it spoke, Harlow felt the words in her teeth.
“Detective Quinn,” the figure said. “Bring your watch . Bring your question. Leave your breath.”
Harlow’s hand dropped to her coat pocket. She didn’t need the watch to know what it meant now. The market wanted her thread.
She yanked her watch free, leather creaking. The tick inside the case quickened , impatient.
Tomás’s grip snapped onto her wrist again, harder this time. His scarred forearm strained with the force.
“You can’t go in with it,” he said.
Harlow met his eyes. Warm brown. Olive skin. Blood-stained fate.
“Then how do I go in at all?” she asked.
Tomás didn’t answer. He lifted his medallion and pressed it to the watch case. Saint Christopher’s face caught blue flame from the stalls. For a second, the market’s symbol dimmed.
Then the carved door shuddered.
Not from resistance. From recognition.
The figure at the threshold leaned forward, and something moved behind its mask, like gears turning slowly in a throat. The air cracked with a sound like ice splitting on pavement.
Harlow felt the world pull, as if the Veil Market had decided it would swallow her properly now.
The door swung inward without a handle.
Inside wasn’t a room.
It was a corridor made of darkness layered with thin, shimmering paper. Each layer carried an image, a photograph, a memory caught mid-moment. Faces. Bodies. A desk. A bloodied hand. A partner’s outline in police uniform, blurred at the edges like film ruined by water.
Harlow’s breath snagged.
DS Morris’s presence wasn’t just remembered. It was displayed , curated like stock.
The figure stepped aside.
“After Elias,” it said, voice calm . “After what you lost.”
Tomás shoved her back, slamming her shoulder into the tunnel wall hard enough to sting. The medallion flew out of his grasp and clattered to the stone.
The carved door widened.
From within, Elias’s voice came through, distorted, urgent, like he’d been underwater and the last bubbles finally broke free.
“Quinn!” he shouted. “Don’t—”
He cut off mid-word, swallowed by a noise that sounded like a lock turning inside bone .
Harlow surged forward anyway, reaching for the open doorway, watch ticking against her ribs like a countdown.
But the corridor inside snapped shut halfway, as if something had grabbed Elias out of frame. The symbol on the door flared brighter, hungry.
A new seam opened beside it, thin as a blade, and from that seam a hand emerged, pale and slick, fingers curling toward Harlow’s wrist.
Tomás screamed her name. Not warning now, pleading. “Quinn, move!”
Harlow didn’t move in time.
Her watch jolted in her grip, leather strap twisting as if yanked by an invisible tether. The tick became a rapid stutter, then a ringing silence .
The hand gripped.
The market roared back to life around her, vendors shouting, customers scrambling, neon signs sputtering like they couldn’t decide whether to die or burn.
Harlow stumbled, pulled toward the seam, her feet scraping stone, eyes locked on the edge of darkness as Elias’s disappearance became real enough to touch.
Then the door slammed fully shut, trapping her in the tunnel while the corridor’s symbol continued to burn behind it, like a mouth that refused to release what it had bitten.