Run: 2026-10-27-01M5YHPXW48DC4E2JBBR0BCZE8

Rain ran off the canvas awning of the closed pharmacy and down Detective Harlow Quinn’s collar. Across the road, Tomás Herrera stood under a bus shelter, one hand clamped around a canvas medical bag. He watched the traffic, not the people waiting beside him. Quinn lifted her phone. The photograph from her briefing showed the same short curls, the same narrow scar along his left forearm. In that picture he had worn an NHS uniform. Tonight his sleeve had ridden up beneath a soaked denim jacket. Her phone buzzed against her palm. “You’ve got a car on its way,” her colleague told her. “Five minutes.” “He’s moving.” “Wait for the car, Harlow.” Herrera stepped off the kerb. Quinn slipped the phone into her coat pocket and followed. A night bus passed between them, its tyres pushing a sheet of water across the pavement. When it cleared, Herrera had reached the mouth of an alley beside a kebab shop. Quinn crossed against the lights. A taxi braked, and its horn cut through the rain. “Metropolitan Police. Herrera!” He turned. For an instant, his hand tightened on the bag. Then he ran. Quinn followed him into the alley, past stacked beer kegs and bins that smelled of wet cardboard. Herrera shoved through a pair of men sheltering beneath a fire escape. One swore and swung an elbow. Quinn caught his shoulder, pushed past and saw Herrera take the corner ahead. “Stop!” He vaulted a low chain between two bollards. Quinn went over it a step later, her shoe slipping on painted metal. She struck the pavement on one knee. Pain shot up her thigh. Herrera gained twenty yards. He crossed the road without looking. A delivery cyclist swerved, hit a parked car and went down. Quinn reached him as he pushed himself onto one elbow. “Police. Are you hurt?” “My bloody wheel is.” The front wheel had folded against the frame. The cyclist’s hands were scraped, but he got to his feet. “Call an ambulance if you need one.” Herrera disappeared around the corner. Quinn ran after him, pulling her warrant card clear of her coat. Camden’s late traffic clogged the next junction. Headlights spread across the wet road. Herrera squeezed between a van and a black cab, then hauled himself over the bonnet of a stationary car. Its driver leaned on the horn. Quinn followed the gap between the vehicles. A passenger opened a door in front of her. She caught its edge before it struck her chest. “Police. Keep it shut.” She slipped through and reached the opposite pavement. Herrera had stopped outside a shuttered tattoo studio. He pressed a hand to his side and looked back. “Detective, leave it.” “Put the bag down.” “You don’t know what’s in it.” “Then show me.” A siren sounded somewhere beyond the junction. Herrera glanced towards it, then ducked through the narrow space between the studio and a boarded-up newsagent. Quinn reached the gap as a metal gate slammed across it. Herrera had pulled a chain through the bars. His hands worked at a padlock on the other side. She seized the gate before he could fasten it. The chain snapped taut. Herrera jerked back, and the padlock fell into a puddle between them. “Move away from the gate.” “There’s a woman with a collapsed lung waiting for me.” “Where?” “Somewhere you can’t bring half the Met.” “Give me the address. I’ll send paramedics.” Herrera gave a short shake of his head. “She can’t go to hospital.” “Why?” He reached into his jacket. Quinn drew her baton and stepped back from the bars. “Hands where I can see them.” He pulled out a small glass vial. Dark liquid coated its sides. A strip of white tape covered the label, with a dosage written in blue ink. “That’s what she needs.” Quinn kept her eyes on his hands. “You lost your licence for using unapproved treatments.” “I lost it for using them on people nobody else would touch.” He slipped the vial back into his pocket and pulled the chain free. The gate swung towards Quinn. She caught it, but Herrera had already turned and run. She forced her way through the gap. At its far end, a broken security light flashed over a service yard. Herrera ran between two skips towards a brick wall. Quinn closed the distance. He set one foot on a crate and reached for the top. She caught his jacket. The denim tore beneath her fingers. Herrera twisted, and the medical bag swung into her wrist. Her baton struck the wall. He landed on the other side with a grunt. Quinn climbed after him. A rusted bracket caught her coat, holding her for a moment at the top. She ripped the cloth free and dropped into a narrow lane. Herrera was at the far end, fumbling with a door beneath a concrete stairwell. He pushed it open and vanished inside. Quinn ran down the lane. The door had no handle on her side, only a steel plate and an old transport notice bleached almost white. She wedged her fingers into the gap before the latch caught and hauled it back. A flight of tiled steps descended into darkness. Water dripped from Herrera’s shoes onto the treads. His footsteps rang below. Quinn switched on her torch and went down. The passage smelled of damp plaster and old wiring. Faded posters clung to the walls behind cracked glass. One advertised a concert from twelve years earlier; another had peeled until only a woman’s painted eye remained. At the foot of the stairs, a heavy grille blocked the corridor. Herrera stood beyond it. A man in a long green coat held the gate open for him. “Close it,” Herrera told him. The man saw Quinn’s torch. He swung the grille shut and slid a bolt through its frame. Quinn reached the bars. Herrera backed away, breathing hard, his bag hugged against his chest. Light flickered on the tiled wall behind him, yellow and unsteady. “Tomás. Listen to me.” He stopped. “I found your name in a ledger taken from the Raven’s Nest. Three payments in two months, all marked medical supplies. The same ledger listed a woman who vanished last week.” “What woman?” “Leah Marsh.” His expression changed. He shifted the strap of his bag higher on his shoulder. “Where is she?” “That’s what I’m asking you.” “I treated her at the Nest. A cut on her leg.” “When?” “Ten days ago.” “Who was with her?” “Two men. One had a broken nose.” He looked towards the light behind him. “I don’t know their names.” “Come back through and give me a statement.” “I’ve got a patient.” “Then tell me where she is.” Herrera pushed his wet hair off his forehead. A silver medallion had come loose from under his shirt; it caught Quinn’s torchlight before he tucked it away. “She’s through here. She’ll die while you’re filling in forms.” “Let me see her.” The man in the green coat stepped between them. “Token.” Quinn turned the torch on him. He had a narrow face and a row of silver rings along one ear. “I’m a police officer.” “Token.” Herrera opened his mouth, then shut it. He took a small object from his pocket and pressed it into the man’s hand. The man examined it and moved aside. Quinn rattled the grille. The bolt held. “Herrera!” He looked back once, then ran down the corridor. Quinn pulled her phone out. No signal. She climbed six steps until a bar appeared and called her colleague. “He’s gone into a disused station off Kentish Town Road. Entrance is in the service lane behind the tattoo studio.” “Stay there. We’re two minutes away.” “There’s a locked gate. He’s inside with another man.” “Don’t go through on your own.” Quinn looked down the stairs. The man in the green coat waited at the grille, a cigarette tucked behind one ear. “He says he’s treating someone.” “Herrera’s a suspect, Harlow. He’d tell you anything.” The call broke into a crackle. Quinn moved up another step, but the signal vanished. She put the phone away and went back to the gate. The man held out his palm. “Token.” “What kind?” “Bone.” “I haven’t got one.” “Then you weren’t invited.” Quinn swept her torch across the floor. Rainwater had collected in the hollows between the tiles. Near the wall lay the torn strip of Herrera’s jacket, carried down on the toe of her shoe when she had climbed the wall. Something pale had caught in its stitching. She picked it up. A thin disc, no larger than a pound coin, hung from a broken thread. She rubbed away the grit. A hole had been drilled through its centre, and a shallow pattern of lines marked one side. The man held out his hand again. Quinn kept the disc. “What’s down there?” “Shops.” “In an abandoned station?” “You wanted in.” Voices drifted up the corridor, too many for a handful of shops. A bell rang, followed by the scrape of wheels and a burst of laughter. Quinn thought of the ledger from the Raven’s Nest, of payments that had stopped the day Leah Marsh disappeared. Herrera had recognised the name. He had also run from it. She checked her watch. Rain had darkened the worn leather strap. If she waited, Herrera could leave through another exit before the car arrived. If she followed, nobody outside would know where he had gone or where she had gone after him. She took out her phone and typed the location into a message, adding: Locked grille. Male guard in green coat. Herrera inside. The message sat unsent without a signal. Quinn climbed the stairs until it went through. Then she returned to the gate and held up the disc. The man took it, ran a thumbnail across the carved lines and drew back the bolt. Quinn slipped past him. He shut the grille behind her. She kept her torch low as the corridor widened. The walls opened onto a platform, where stalls crowded both sides of the old track bed. Lamps hung from cables looped around iron pillars. Under their light, jars stood in ranks on folding tables, filled with powders, teeth and strips of meat suspended in clear fluid. A woman in a butcher’s apron weighed something on brass scales. Across from her, a man spread photographs on a blanket while a customer picked through them. People moved between the stalls with their heads down. Quinn caught glimpses of faces beneath hoods, gloved hands exchanging notes and tokens, a crate that rocked against the floor as its owner dragged it past. She found Herrera near a stall stacked with bottles. He pushed through a group of customers, the canvas bag against his ribs. Quinn followed, edging around a trolley laden with parcels. A stallholder stepped in front of her. “No police.” She kept her warrant card inside her coat. “Which way did he go?” The stallholder looked at her empty hands. “Buy something.” Herrera reached the end of the platform and turned down a passage between two hanging sheets. Quinn pushed past the stallholder and followed him through.