AI Rain stitched the night together in hard, slanting lines, turning Soho’s pavements into slick black glass. Detective Harlow Quinn moved through it like a blade—shoulders square, steps measured even when her pulse tried to crowd her lungs. The green neon of The Raven’s Nest buzzed behind her, a toxic halo reflected in puddles, as the door banged shut and the man in the charcoal hoodie cut right, head down, fast.
Quinn had watch ed that door for two hours from the shadow of a shuttered record shop, collar up, salt-and-pepper hair cropped tight against her skull so the rain had nowhere to cling. The bar’s windows were too dark to read. The walls inside—maps and photographs, old London laid out like a body—had stayed out of sight. But people came and went. She catalogued them. The hoodie was the one she’d been waiting for: wrong shoes for the weather, too clean; a messenger bag held close, like it mattered more than the ribs beneath it.
He glanced back once. A flash of face under the hood—pale, narrow, eyes bright with panic or calculation. He saw her. Of course he did. Men like this always thought they could spot a tail. Sometimes they were right.
Quinn stepped off the kerb without hesitation.
“Met Police! Stop—”
He didn’t.
He launched into the street, cutting between two idling taxis. A horn blared. A driver swore. The man didn’t look. He sprinted like the rain was chasing him, bag thumping against his spine. Quinn followed, boots striking water out of shallow puddles, her leather watch snug on her left wrist, its face smeared with droplets that caught streetlight and broke it into shards.
Her radio hissed uselessly at her shoulder, a dead whisper. She’d left the car three blocks back, thinking she’d be in and out. Soho had taught her that nothing stayed simple at night.
The suspect bolted down an alley that stank of fryer grease and damp cardboard. Quinn’s world narrowed to footfalls and breath. Her jaw clenched , sharp as an edge under skin. He knocked over a stack of bins; lids clanged and skittered, echo ing like gunfire. She hurdled one, caught her sleeve on a jagged corner, tore fabric, felt nothing. Pain was later. The job was now.
At the alley’s end he broke left, onto a wider street slicked in neon. Clubs and kebab shops blurred. A group of drunk students spilled from a doorway, laughing, oblivious. The man used them as cover, shoulders dipping as he shouldered through. Quinn threaded after him, barking, “Move!” with the kind of authority that made people flinch without understanding why.
He cut across the road against the light. A bus hissed to a stop, tyres throwing a fan of dirty water. Quinn’s shoulder clipped the bus’s mirror; it jolted her, sent a jolt of numbness down her arm, but she kept going, boots skidding, regaining traction with the reflex of long habit.
He turned north. Not random. Purposeful.
Quinn’s lungs burned. She didn’t let it show. Eighteen years on the job had taught her not to bargain with her body in front of anyone who might exploit it.
The city changed as they ran. Soho’s tight glamour gave way to broader roads and darker stretches between streetlights. Rainwater poured off awnings, drummed on scaffolding, turned gutters into fast streams. The man in the hoodie never slowed, but he started to glance back more often, as if surprised she was still there.
Good, Quinn thought. Let him feel it.
A memory tried to wedge itself into her focus—DS Morris turning his head in a corridor lit wrong, like the bulbs were under water; the way his pupils had gone too wide, the way his hand had tightened around hers like he could anchor himself in the ordinary. Then he’d been gone . Not dead in the way bodies died. Just… removed. Vanished out of a world she understood.
She shoved the memory aside. It had teeth. It always did.
The suspect plunged under a railway bridge and into Camden’s veins. The smell here was different—wet concrete, old metal, the sour ghost of spilled beer. Somewhere, music pulsed in a distant basement, the bass a heartbeat through stone. Quinn’s boots slapped across a patchwork of pavement and grates, past a shuttered shop with graffiti bleeding down its front like fresh paint.
He veered into a side street that looked like it ended in a construction barrier. Quinn saw it and frowned. Dead end.
He didn’t slow.
He slipped through a narrow gap between two hoardings and disappeared as if the rain had swallowed him.
Quinn surged forward, shoulder-checking the plywood, forcing herself through. Behind the hoarding was a service corridor lined with damp brick, lit by a single flickering work light that turned the rain into silver needles. The air changed. Cooler. Older. It smelled like the underside of London—rust and limestone and something faintly sweet that didn’t belong.
Ahead, the suspect descended a stairwell that should not have been there. The steps were narrow, sunk into the ground, slick with rain and use. A black iron gate stood open as if inviting him down.
Quinn reached the top of the stairs and stopped.
Her instincts screamed at her to keep pressure, to close distance, to not let him vanish into whatever hole he’d found. Another part of her—the part that had stood over Morris’s empty desk and felt the universe tilt—warned her that this was exactly how it started. A chase. A corner. A step into someplace that didn’t play by the rules.
Below, the suspect’s footfalls faded, swallowed by the throat of the stairwell.
Quinn lifted her chin, listening. She heard voices. Not just one or two—dozens, maybe more. Low conversation, laughter, the clink of glass, the scrape of something being dragged . A market, her mind supplied before she could stop it. Underground. Hidden. Exactly the kind of rumour that floated through precinct corridors and got laughed off by men who’d never seen the wrong kind of dark.
She glanced back toward the street. Rain. Empty pavement. No backup. No working radio. Her badge in her pocket, her pistol heavy at her hip.
She looked down the stairwell again.
At the bottom, a pale shape moved in the shadows—someone posted there, watch ing. A gatekeeper. The silhouette leaned into the light, and Quinn caught a glint of something in his hand, held up as if to check it.
A token.
Her mouth went dry. She’d heard whispers: bone tokens, worn smooth by fingers, the key to doors that weren’t doors. Superstition, they’d called it, and she’d let them. It was easier to let men laugh than to admit you didn’t know what had happened to your partner.
Quinn stepped onto the first stair. The stone was slick. She adjusted her weight , careful, controlled. Military precision. The rain dimmed as she descended, replaced by the damp breath of old tunnels. The air pressed close, heavy with secrets.
At the bottom, the stairwell opened into a short corridor lined with posters so old the paper had become part of the wall. “Mind the Gap” in a font from another decade. The lights overhead were a sickly yellow. Farther ahead, a broader space glowed with warmer lantern light, and the sound of people swelled.
A man stepped into her path before she could reach it.
He was broad-shouldered, shaved head, neck thick with tattoos that looked like knots. His eyes were flat and dark. In one hand he held a small object, pale against his skin.
A bone token. Polished. Carved with a symbol Quinn didn’t recognise but felt in her teeth, like a vibration.
“Token,” he said. Not a question.
Quinn kept walking until she was a foot away. Close enough to smell him—cigarettes and damp wool. Close enough that if he moved, she could move faster.
“Police,” she said quietly, and flashed her warrant card in a motion too quick to be theatrical.
The man’s mouth twitched, almost a smile. “Police don’t come down here.”
“They do when someone runs.” Quinn kept her voice even. She could hear her own heartbeat, steady as a drum. “He went in.”
“Lots of people go in.” The gatekeeper’s gaze slid over her, taking in her soaked coat, the bulge at her hip, the watch on her left wrist. “Lots of people don’t come out.”
Quinn didn’t blink. “Move.”
For a moment, neither of them shifted. The corridor felt narrower, the air heavier. The lantern light from the space beyond flickered , and with it came a scent that made Quinn’s stomach tighten: incense, metal, something like crushed herbs.
Then the gatekeeper lifted the bone token slightly , as if weighing it.
“You got one, Detective?” he asked, and there was satisfaction in his tone, like he’d been waiting to say the word.
Quinn’s fingers curled, just once, against her thigh. She pictured the suspect’s messenger bag, the way he’d held it too close. Something in there worth hiding. Something worth running into a hole in the ground for.
“I don’t need one,” she said.
The gatekeeper’s smile widened. “Everyone needs one.”
Behind him, in the corridor’s shadow, something shifted—a second figure, barely visible, watch ing her with eyes that caught the light wrong. Too reflective. Like an animal. Quinn’s skin tightened along her arms beneath her coat.
She made her decision the way she’d made a hundred decisions in alleys and stairwells and cramped flats: quickly , with full acceptance of the cost.
Her hand moved.
Not to her gun. Too slow, too escalatory. Instead she snapped forward, grabbed the gatekeeper’s wrist with her left hand, twisted sharply . The move was clean, practiced. His breath whooshed out, surprise flashing across his face, and the bone token popped loose.
Quinn caught it in her right hand before it hit the ground.
The second figure lunged, but Quinn drove her shoulder into the gatekeeper’s chest, using him as a barrier. He stumbled back, collided with the corridor wall. Quinn shoved him hard enough to make him curse and then she was past, sprinting toward the lantern glow.
“Hey!” the gatekeeper shouted, rage blooming. “Get back here!”
Quinn didn’t.
She ran into the Veil Market like a diver breaking the surface into a new world.
The abandoned Tube station opened wide, its old platforms repurposed into aisles. Stalls crowded the space—tables draped in velvet , crates stacked high, glass cases lit from within. Lanterns hung from cables strung between pillars, their flames too steady to be ordinary. The air was thick with smoke and spice and damp stone. Voices overlapped, a babel of accents and low laughter. Somewhere a violin played a thin, unsettling melody that didn’t quite match the rhythm of the crowd.
And there—near the far end of the platform, weaving through bodies—was the hoodie. Moving fast, head down, messenger bag clutched close.
Quinn shoved into the flow, her shoulders tight, eyes scanning. People looked up as she passed—some merely annoyed, some curious. A few stared too long, their faces unsettling in ways she couldn’t name. Too smooth. Too sharp. Eyes too pale, or too dark, or gleaming like oil.
A woman behind a stall of jars filled with something that pulsed faintly under glass called out, “No running!” in a voice that carried like a whip.
Quinn ignored her.
She forced her way around a group huddled over a tray of glittering powder that smoked in the rain-damp air. A man held out a small cage where something feathered and angry rattled its bars, its eyes furious pinpoints. Quinn caught snippets as she pushed past—“full moon,” “new shipment,” “don’t trust—”—and the words snagged in her mind like hooks.
Full moon. Of course. The market moved every full moon. She’d heard that in the kind of conversation that ended when she walked into the room.
The suspect glanced back and saw her again. His eyes widened , and he swore. He darted left, down a narrow aisle between a stall selling tarnished rings and a table covered in maps so old the paper looked like skin. He knocked into a hanging lantern; it swung wildly, throwing shadows across the station wall like flailing arms.
Quinn followed, pulse steady, fear locked down behind the part of her that refused to give it room. The world felt wrong here—too alive for a dead station, too crowded for a place that didn’t exist.
He shoved through a curtain of beads and vanished into a side corridor marked by a cracked roundel sign. “CAMDEN TOWN,” it read, letters half peeled away.
Quinn skidded to a stop at the bead curtain, breathing hard now. Her chest rose and fell beneath her soaked coat. She could push through. She could keep chasing into whatever lay beyond the market’s bright lanterns and crowded cover.
Or she could pull back, retreat, call it in from the street, come back with units and warrants and lighting and the illusion of control.
The market seemed to sense her hesitation. The noise dipped, just a fraction, like a room pausing to listen. Quinn felt eyes on her, dozens of them, measuring. Waiting.
Her fingers tightened around the bone token she’d stolen. It was warm, as if it had been held against skin for hours. The carved symbol bit into her palm.
She thought of DS Morris again—not the empty desk, not the grief, but the moment right before he’d been taken , the way he’d looked at her as if he wanted to warn her and couldn’t find the words.
Don’t let them decide where the line is, his gaze had said. Not if you want answers.
Quinn pushed the bead curtain aside and stepped into the darker corridor.
Immediately the lantern light dimmed behind her. The air turned colder. The sound of the market receded, replaced by a low hum that rose through the soles of her boots. The corridor sloped down, deeper into the station’s bones.
A figure detached from the shadows ahead, blocking her path.
He was younger than her, late twenties maybe, olive skin and short curly dark hair damp with humidity. A Saint Christopher medallion hung at his throat, catching what little light there was. His eyes were warm brown, but the look he gave her was wary, like someone deciding whether to help or hurt. A scar ran along his left forearm, pale against darker skin where his sleeve had ridden up.
He held up a hand, palm out, not aggressive but firm.
“You shouldn’t be here,” he said, Spanish threading his English. His voice was low, urgent. “Not like this.”
Quinn kept her stance squared, feet planted. She could feel the weight of her badge, absurdly small comfort in a place like this.
“I’m chasing a suspect,” she said. “He came this way.”
The man’s gaze flicked to her right hand. The bone token. Something like resignation moved across his face.
“That’s not how this works,” he said. “You can’t just—”
Quinn cut him off. “Move.”
He didn’t. He swallowed, and for a moment his eyes softened, like he’d seen people make this choice before and knew how it ended.
“Detective,” he said, and the way he said it told her he wasn’t guessing . “If you go further, you’re not in your city anymore. You’re in theirs.”
Quinn stared at him, rainwater still dripping from her coat hem onto the old station tiles. The hum underfoot seemed to pulse, as if something below them breathed.
“Then they can explain what happened to my partner,” she said, and heard the rough edge in her own voice despite her effort to keep it flat. “Or they can try to stop me.”
The man’s jaw tightened. He looked past her, toward the market’s lantern glow, as if calculating time. Then he stepped aside, just enough to let her pass.
“Don’t run,” he said quietly. “And if someone offers you a drink, don’t take it.”
Quinn didn’t thank him. Gratitude was a luxury.
She moved past, deeper into the corridor, bone token clenched in her fist, the world narrowing again to footfalls and breath and the fading echo of a suspect who thought he’d found a place she wouldn’t follow.
He was wrong.