Ada and Milo find Bristle wedged below the depot floor, terrified enough to fire quills through old tile whenever...
A quill punched through the pit cover and buried itself in Milo's boot sole.
He stopped with one foot in the air, flashlight trembling over the cracked tile. Beneath the depot floor, something panted in quick, wet bursts. The air smelled of hot copper, sour mud, and fear-shed spines. Pip clung upside down to a pipe above Ada's shoulder, every feather puffed around his wing cradle.
"Nobody step," Ada said.
Milo looked down at the black quill pinning his boot to the wood. "I have achieved that."
Another quill scraped under the cover. Ada's Stress-Sight flared through the gaps: a hunched body, heat packed under armor plates, pain burning along a collar line. The creature was larger than Pip, low to the ground, with a boarhound's blunt snout and a ridge of defensive spines rattling against the pit wall.
Bristle. Ada knew the name because the system wrote it in red before she asked.
[Spineback boarhound.]
[Quill-shed fever.]
[Stress trigger: boot scrape, dry floor, iron collar.]
"That is not in the lease," Omar said from the stairs.
"You are still here?" Milo hissed.
"I own the pit."
Bristle slammed into the underside of the cover. Three more quills burst up. One shattered a tile near Ada's knee. Pip shrieked and dropped a washer into her hair.
Ada lowered herself to the floor. "Milo, talk to me about supplies."
"We have two tarps, one cracked kiddie pool from the alley, half a bag of ash bedding, and no money because the roof exists."
"Mud?"
"This is a depot."
Omar cleared his throat. "There is a rain barrel behind the bakery and clay soil under the yard gravel. You cannot dig up my yard."
Bristle hit the cover again. The quills rattled like thrown nails.
Ada looked at Omar. "If he overheats and fires through the floor, your yard will be the least expensive damage."
"That is leverage, not consent."
"It is math."
Milo gave her a quick, grim smile. "I can pry the cover if you can keep him from launching."
Ada shook her head. "No prying over his head. He thinks overhead means arena gate."
The word came from Stress-Sight, a pulse of images without pictures: bright sand, boots, a collar command, crowd noise. Ada swallowed the anger before it could make her careless.
Her phone rang. Gideon Vale's name filled the screen.
Milo groaned. "How does he know?"
Ada answered on speaker. "Busy."
"With my escaped training animal, I assume," Gideon said. "A spineback tagged to an Iron Quill affiliate vanished from transport last night. Do not touch it. Containment will collect."
Bristle heard the voice. His heat signature surged. Quills hammered the pit cover.
"Turn that off!" Milo snapped.
Ada muted the phone but did not hang up. "Gideon, if this animal is yours, why is he under my floor with a fever collar cutting into him?"
The line went quiet for half a beat. "Careful. Possession of stolen guild property will not help your suspension."
"Send paperwork."
"Return him now and I may tell the board you cooperated."
Ada stared at the pit cover. Bristle's breathing was ragged. Pip made a tiny warning chirp from the pipe.
"No return without city paperwork," she said, and ended the call.
Omar rubbed both hands over his face. "You said that clause would matter someday. I hoped someday was not Thursday."
"Milo, the pool."
They worked from the side, not above. Milo slid the cracked plastic pool along the floor while Ada spread tarps into a low crescent barrier, leaving a path from the pit to the open yard door. Omar cursed under his breath and dragged in two buckets of clay soil after all. Ada mixed the soil with rainwater and ash bedding until the mud held cool, mineral weight. She added no real medicine, no dose, no human trick. Spineback skin shed heat through quill roots. The mud only gave Bristle's body a place to put the fire.
"If he charges?" Milo asked.
"We move sideways and let the barrier take it."
"Comforting."
Ada set Pip's paper cup of shiny scrap near the far rail. The grifflet chirped in outrage but stayed above them. "He is not the bait. The sound is familiar. Bristle needs to know another resident is calm."
"Pip is offended by your definition of calm."
Ada eased the pit cover sideways one inch.
Bristle exploded out like a furnace with teeth.
He hit the tarp barrier, bounced, and fired a fan of quills into the old ticket booth. Milo ducked. Omar made a sound that would have been a scream if pride had not strangled it. Ada stayed low, palms open, body angled away from the exit.
"No chain," she said. "Mud there."
Bristle's collar sparked. The iron tag at his throat read IRON QUILL ARENA STOCK in chipped letters. Under it, smaller print listed an arena name Ada recognized from old nuisance reports. Closed last year. Officially.
Bristle lunged toward the door. His overheated paws hit dry concrete, and his spines lifted again.
Ada shoved the mud pool into his path with her foot.
The boarhound crashed into it chest-first. Mud slapped the wall. For one terrible second he thrashed, and Ada thought the confinement would trigger him worse.
Then the heat colors bled from white to orange.
Bristle froze.
His quills sagged by a finger's width.
Ada breathed. "Good. Stay if you choose."
Milo, still crouched behind a toolbox, whispered, "Did you just negotiate with a mud volcano?"
Bristle's nostrils flared. He smelled the mud, the open door, Pip above, Ada's hands, Milo's terror, Omar's expensive coat. He did not come closer. He did not run.
The Mercy Ledger opened.
[Resident candidate: Bristle.]
[Immediate obligation: cooling run.]
[Deferred obligation: impact-safe barrier.]
[Repair funds insufficient.]
Omar pointed at the destroyed ticket booth. "That is coming out of someone's deposit."
Ada looked at the collar tag and the quills trembling in the wall. "Mine."
Outside, a guild siren chirped once and stopped. A message arrived from an unknown number with a photograph of the arena tag around Bristle's neck.
Closed properties do not lose stock, Doctor Park.
Bristle sank deeper into the mud, still burning, still armed, and not safe to move.