AI Detective Harlow Quinn’s boots echoed against the damp stone floor of the abandoned Tube station as she entered the cavernous void beneath Camden. The Veil Market had already begun to dissipate by the time the police arrived, its stalls dismantled, its vendors long vanished beyond the reach of the full moon’s waning light. Only the scent remained—smoke and petrichor and something acrid, like burnt copper—and a single body laid out on the grungy edge of a collapsed awning. A crime scene, but one that felt off-kilter even before she knelt beside it.
DS Foster was already crouched at the corpse’s head, gloved hands sifting through a tangle of dark hair. He glanced up as she approached, his face a lopsided sneer in the cold blue of his LED light. “Took you long enough,” he said. “I was about to call for the cleanup crew. Just another junkie OD’d in some squatters’ den.”
“Junkie doesn’t OD with a hole in the chest,” Harlow said, her voice sharp as the angle of her jaw. She slid on a spare set of gloves, the scent of lilies from the packaged gloves clashing with the market’s lingering stink. Kneeling, she rolled her left wrist to inspect the face of her watch . The numbers glowed faintly, a habit of old eyes. Foster had left blood spatter patterns inconsistent with his own account—here, in the center of an abandoned space, where the only witnesses had been rats and flickering shadows.
The dead man’s jacket was a rumpled suit, not the tattered fare of a瘾君子. A silver pendant hung from his neck, half-melted and curling at the edges. Foster must’ve missed the lack of rigor mortis. Harlow prodded the pendant with a gloved fingertip. It didn’t move as it should ’ve, frozen in a mid-wobble like a broken metronome. “Tox report will show this isn’t an OD,” she said. “You’d need a rare fungus to fix metal like that, unless someone stopped his heart first.”
Foster shrugged, still holding his flashlight low to the man’s face. “Could’ve been a magic trick gone wrong. The ones who sell that damned firepaint still hang out in the basement.” He tapped his temple, a gesture Harlow had always found irritatingly vague. “It’s all in the brain, right? Traumatic event when you look at it, even if it’s not there.”
Harlow stood, her coat tails snapping with the movement. The market’s walls were still lined with oddments: a bundle of withered roots tied in a bow, a mirror that showed only the back of its frame, and a crate half-filled with bone tokens now discarded in neat rows on the concrete. Foster’s gaze followed hers but settled on the nearest token rather than the market’s remnants. “No sign of the killer,” he repeated. “If it was a robbery, we’d have more. This guy’s got cash in his sock and a cell phone.” His boot pointed to a small satchel by the man’s right side. A strap hung loose, as though the bag had been pulled free and hastily abandoned. Harlow stepped over to it. Inside was a journal, pages dog-eared and brittle with overhandling. And inside that, pressed into a folio marked *Sanguis Ferro *, a dried flower. Not ordinary. Thistle spines curled inward like grasping fingers. The kind of nonsense that made real scientists roll their eyes but kept collectors paying in gold.
“We found a second body earlier this week,” Foster added. “Same profile. Middle-aged male, no ID on him, but both are high-end suits. Same puncture wound, just here.” He waved the beam of his light up near his own sternum. “Some people are gonna say the Veil Market brought this on itself.”
Harlow didn’t miss the way he kept his back to the shadows under the archways. She had seen that posture before: her old partner, DS Morris, the night he was lost. His shoulders had tightened the same when he refused to look at what couldn’t be explained. “You didn’t find a second body,” she said. “You found a second *report *. This one’s fresh. Still cooling.”
Foster snorted, though his grip on the flashlight did not loosen. “So what am I missing?”
“Enough to explain the lack of blood spatter.” Harlow swept the area. “Notice how neatly that one awning collapsed. The debris pattern isn’t accidental.” She gestured to a line of soot near the corpse, then paused. Her eyes tracked the line to the far wall, her brow creasing. There, beneath a rusted handcart, was a smear of something that *should * have been blood but instead seemed like a charcoal sketch of blood, as if someone had poured inky symbols into the wound and left them to dry. The letters were half-German, half-gibberish under the flicker of Foster’s light, but the sigils—protective ones—were familiar . She’d seen similar scratched into the floor of the lab where Morris’s case was handled , after the team dismissed their importance and he died.
“Superstitions,” Foster said, reading her silence . “You think this is your partner’s ghost? Found his heart next to the kettle this morning?”
“I think the Veil Market’s still in play,” Harlow replied, ignoring him. Instead, she reached into her own jacket, retrieving the Veil Compass from a hidden pocket. The brass casing was slick with condensation, the needle swaying erratically before locking on a point behind the corpse. Foster blinked. “What’s that?”
“A compass,” she said dryly . But he didn’t flinch at the sarcasm. He just stared at the needle.
“It’s pointing at the wall.”
“Irrelevant to you, then,” Harlow pried open the Compass’s casing with practiced ease . Within the sigils, three faint etchings shimmered as if reacting to heat, and the needle hovered over the symbols . She had spent weeks in the restricted archives tracing their design; this was the work of Shade artisans, who built tools for crossing the Veil. “It marks residual energy,” she elaborated. “From a rift. One’s been here recently.”
Foster didn’t say “bullshit,” which surprised her. Instead, he said, “They don’t need permission to open a warlock’s den here. The market does enough damage with its own.”
“Then you’d already have a lead.” She rose, her fingers brushing through the air as though untangling the invisible . The collapsed awning, the tokens in neat piles, the absence of blood—each was a clue, but none told a full story on its own. Until the Compass. She turned to the point it faced, where the wall gave into a narrow tunnel choked with ivy and the smell of mildew. Foster followed her gaze. “That’s a utility shaft. Closed in the sixties.”
“Yet it’s clean.”
He crossed his arms. “Could’ve been the cleanup crew.”
Harlow ignored him now, striding toward the tunnel. The Compass needle jolted in agreement, almost vibrating against her palm. Foster followed with a reluctant grunt. The passage was tight, and the market’s residue grew stronger: moss curling away from the brick, the air pressing slightly too hard, like diving under a shallow wave. At the tunnel’s end, her boots skidded on something slick.
Not blood.
This was a liquid that changed color under her flashlight, silver-veined one moment, dull green the next. Foster muttered a curse as he shone his light here too. “What the hell is that?”
“Mercury,” she said. “Or a substitute. Shady stuff.”
“Are you sure?” His voice was higher now, edged with something close to panic .
“No one’s dumb enough to spill mercury in a confined space. It’s cheaper. And it’s not just a spill.” Her boot pressed into the puddle, leaving a print that shimmered before sealing itself back over. Foster caught the movement and frowned. Harlow was already moving . The Compass twitched violently. She caught sight of it first—a fissure in the center of the tunnel wall, hairline fine, but visible in the light she turned off for a moment to let her eyes adjust. The edges of the crack were lined with the same inky sigils as the corpse’s wound.
“You’re seeing shapes in the soot,” Foster said, switching to a tone Harlow disliked more: lecturing, as if she was a student. “That’s it. No foot traffic, no prints, no sign of—”
“Eva?”
Foster went silent. His head swiveled. Harlow’s voice had softened, which was not good. The tunnel mouth opened behind her; someone else was coming . Slow footfalls. A familiar scent: ink, lichen, and old parchment. Eva Kowalski stepped past them both, her round glasses catching the Compass’s glow, and went straight to the corpse. She wore her leather satchel slung low, and as her fingers brushed the dead man’s forehead, a nervous habit tuck of red hair followed.
“DS Foster,” she greeted. “Didn’t know you were here.”
Foster didn’t respond immediately, clearly hesitating on how to address her. “You don’t have jurisdiction in the Veil Market, Miss Kowalski.” It was a warning, of sorts.
“I don’t need it,” Eva replied. She crouched, flipping the man’s hand to display the inside of his wrist. “See the faint scar here? Two lines perpendicular. That’s the symbol for *Sanguis Ferro *, the Order of Crimson Iron.” She glanced at Harlow. “A cult of transhumanists. They believe in binding souls to metal to preserve them. The flower in his satchel is a *mortis chrysanthemum *. It closes the eyes of the living to see the dead.”
Harlow’s pulse steadied. Foster was already on his phone. “I’ll get a search—”
“No need,” Eva said, cutting him off with a tuck of hair behind her ear. She stood, her freckled face unreadable in the gloom . “The Order’s gone. The body’s been moved. From a proper ritual site.”
“How do you *know * that?” Foster’s voice climbed.
“Because I’ve read the translated fragments from the *Codex Tenebris *,” Eva said. “You could look them up if you want, or you can listen.” She turned back to Harlow, a knowing look between them, the kind that came from years of shared secrets and unspoken trauma. “The Compass can track residual Rift energy. Follow its signal. That’s where the truth is.”
Eva’s words hung like a challenge. Foster started to argue but stopped at Harlow’s glare. She had been here three nights ago. After the market moved, she and Morris had chased a lead on a Shade smuggling ring and found a man bleeding from the same puncture wound, his body already cold. Morris had taken notes. The Compass had been useless then, unless you knew to look for the *second * signal beneath the first.
Now, back here with the Compass swaying in her palm, Harlow pressed her back to the tunnel wall. Foster moved to join her, but the moment his hand touched the brick and he saw the Compass’s needle leap back, he cursed and pulled away. “That’s not a compass reading. That’s a—”
“Rift,” Harlow finished. “Open. Recently.”
Eva was watching her, patient. The Compass trembled until Harlow tilted it to a precise angle, and then the needle snapped downward, pointing into the floor. The tunnel wasn’t the right direction. The real trail was elsewhere. Harlow straightened. “This body wasn’t placed near the Rift. It was *dragged * from it. Look at the marks near the man’s fingers. Like he tried to hold on.”
Foster squatted to examine and froze mid-motion. The corpse’s skin was smooth where the Compass’s needle had dipped, no more signs of unnatural sigils, but there was a faint depression in the concrete, as if something else had gripped and lifted the body away. Harlow stepped back. “The killer wasn’t here. The victim was brought here by something that wants the Market to look like its own crime. Something that needed blood and metal and a cover story.”
She turned the Compass again. This time, the needle quivered to the right, beyond the collapsed awning where Foster had ignored a second token left lying in the dust. Her partner’s death had looked like this too . A body placed in a natural location, a ritual that masked the supernatural cause. Morris had been the one to see the token, to follow the wrong lead. And Harlow had waited十八 years to stop missing the first signs.
“Get the CS team in here,” she ordered. “And a warrant for the Market’s next location. If the Order used a Rift, their next act will be there.”
Foster opened his mouth—he always had so many objections—but Eva stepped between them, holding out her satchel. Inside glimmered a silver vial of the same mercury-like substance. “The real trail’s in the soil samples,” she said. “The Compass is right about the Rift. Its residue doesn’t last long. But the Order’s not finished. And neither is the thing on the other side of it.”
Harlow nodded. Her watch ticked steadily. Three years after losing Morris, she had learned to trust what others didn’t. The Veil Market moved every full moon, but the truth never did. It just became harder to find.