The screw spun. It did not bite. It just rotated in its stripped hole, a metal lie holding nothing to nothing. His wrist felt the lie first. No bite at the thread, no push back into the joint, only the clean loose turn of a bit that had nothing to work against. The wrist knew. The claw kept going anyway.
Bigtooth forced his claw to keep turning it. The movement was a loop. Turn. Stop. Breathe.
"Excellent torque," he whispered to himself. "Very professional rotation. In theory, this plate was now structurally integral." He swallowed and corrected the next part before it could come out wrong. "In practice, the plate was structurally integral. If it shifted later, someone had loosened it before. Old damage. Not my work."
He knelt on the tile seam where two slabs met. Dampness soaked his knees. A drop from the ceiling hit his shoulder. Plink. He did not wipe it. Wiping admitted the leak existed. Leaks caused paperwork.
"We are dry," he muttered to himself, his ear flaps drooping low to frame his face, shielding his peripheral vision from the room's ugly yellow light. "We are sealed. We are efficient."
He angled his head. His rust-red crown plate caught the glare of the singular, buzzing bulb. His hands shook. He watched the tremor in his four thick fingers and decided it was not fear. It was frequency calibration. A small system correcting itself under load.
"In Waihy," he told himself, testing the shape of the High Tongue in his mouth. "May you pass me by. I am Bigtooth, planetborn Annil. I request safe passage for the grël."
He swallowed. The vibrations were a bit wrong, the word choice seemed to be fine.
"I am speaking very well. I am ready." He bit his lips.
The smell arrived first. A thin trace of weapon oil and cold adult sweat, pressed in under the door seam a half-breath before the floor said anything. His nose filed it the way a guardian filed an intrusion report. Not kin. Not maintenance. Not ours.
Thud.
The vibration traveled through the floor slab, up his shins, and settled in his teeth. Not a knock. An impact. Heavy boots hitting concrete. A lot of them.
Then a drag. A wet, heavy friction sound. Like a mop head soaked in oil being pulled across the tile.
Or a body.
Bigtooth's hand slipped. The screwdriver gouged the wall plate.
"Furniture," he said, too loud. He corrected immediately, dropping to a whisper. "Okay. Okay. Furniture. Moving day. Heavy sofas. Standard Maan procedure. They have no finesse with upholstery."
He kept his eyes on the wall plate as if focus could hold it still. "Just maintenance," he whispered to himself. "Stay small. Stay useful. Do not become an obstacle to the decor."
A shout muffled by the door. A laugh that sounded like glass breaking.
Bigtooth's tail twitched behind him. He clamped it down with his heel until the muscle in his calf pulled tight.
"I am ready for my exam," he told himself, and the words came out with a bright edge he hated. "I will pass it with flying colors."
The door latch clicked. Bigtooth froze. He did not stand. He did not breathe. He became a piece of the plumbing.
The door swung open.
Six shadows spilled in, six small bodies made for ducts and seams. The scents arrived first. Char-smoke and iron-tang — that was the First Elder, burnt finality on the move. Stale underground-air and mineral-decay — the Pale-Scale, sickness held upright. Steel-dust and copper-oxide sharp against the cheek — the Worn-Foot's years in the infrastructure. Bright-copper with sweat-salt underneath — the Green-Claw, all urgency. Calm-musk and faint sage-wax — the Soft-Frill, a body that had learned to be still. Dry-leather and thin-smoke at the edge — the Grey-Tail, a creature withdrawing. His nose filed them as arrival: six distinct registers, six familiar scents, six bodies he had never seen until this moment but knew by smell alone. Then his eyes confirmed the shapes: scaled hides catching the corridor light in dull amber and rust and dark clay, ear flaps pressed low against their heads, tails held close, not swishing. Pupils narrowed and precise in the dim. Elders. They moved like water finding a drain, fluid, silent, inevitable, each step placed to avoid the wet spots on tile as if even a slap of water could carry.
They did not look at him. Their eyes stripped the room. Vents. Seams. Drains. The dead sink. The duct grille. One elder's shoulder brushed the frame and left a smear of wet dust, as if he had just come through a crawlspace that did not forgive. The Scar-Lip Elder's lip carried the scar his scent had announced — the permanent snarl healed wrong. The Worn-Foot's ear-flap bore a notch, old and healed, the mark of a body that had not yielded. Another had a missing patch of scales on his forearm, raw underhide hidden beneath a hastily wrapped strip of cloth. Bigtooth's mind skated past it and called it maintenance work.
"Stand up."
The voice was gravel in a mixer. The First Elder. A scar ran through his lip, twisting his mouth into a permanent snarl.
Bigtooth scrambled up, claws scrabbling on the tile. He tried to stand tall, to look like a guardian and not a hatchling with oversized feet.
"Yes," he croaked. "Yes. Present. Operational."
The Worn-Foot Elder killed the light. The room plunged into grey gloom. Steel-dust and copper-oxide — that scent was already settling into Bigtooth's filing system: the infrastructure master, the years of duct-work burning into his scales. His fingers were steady as machine parts. His ear flap had a small notch torn out of it, healed old, a wound that had closed clean, and his tail braced against the wall for balance without making a sound.
"You listened," the First Elder said. Not a question. A tactile assessment.
"Yes. Absolutely. Listening is my primary function."
"You stayed in the seam."
"Yes. Seams are safe." He swallowed and added, too fast, "I like seams."
"You did not run out to look."
"No. Definitely not. Looking is… high risk. I remained locally stable."
Outside, metal shrieked. A pry-bar snapping a lock. Laughter again. Maan voices. Heavy. Arrogant. The smell of weapon oil drifted under the door like a finger searching for a crack.
The Elders did not flinch. They did not have the luxury. Still, two of them angled their heads a fraction, fin-flaps tightening, listening with their whole bodies. One elder's claws flexed once, then flattened against his palm, as if reminding himself not to leave marks.
"Surface is lost," one whispered. "Corridors are hunted."
"We split," another said. "Now."
Bigtooth gripped the screwdriver until the handle creaked. Split. That was the word for breaking a bone.
The First Elder crouched. His knees popped, dry cartilage snapping. He smelled of burnt dust and finality. A fleck of greyish dried blood clung under one of his knuckles, old enough to darken, new enough to still look wrong against scale. Bigtooth did not stare. Staring was looking. Looking was high risk.
"Listen." He held up two fingers. "Above us. Ilissir sleeps. Still protected. Still waiting for the grël."
"Breathe," the Elder commanded.
Bigtooth realized his lungs had locked up. He sucked in air through his nose.
"I am breathing," he gasped. "Air in. Air out. Standard rhythm."
"Have you practiced your Waihy?"
"Yes, I could keep a conversation with a Meir, for sure," Bigtooth answered, eager, and then he tried to pull the eagerness back into something that sounded older. It did not work.
"Good," the elder said. "Good. We needed to postpone your exam."
"When will it be?"
"In ten days," the Pale-Scale Elder hissed from the shadows. His bleached scales caught a sliver of corridor light and went dull, like old bone. His eye never stopped tracking the door seam. "Do not worry about it. It is no longer important."
Ten days landed in Bigtooth like a clean number. Ten was a loop. Ten closed. Ten ended.
"You are going to be proving yourself now, ok," the First Elder said. It was not an insult. It was physics. "Proving that you can be taken into the Protectors of the Grël. You can become a Guardian."
Bigtooth grinned widely, then tried to look serious. He bit his lips and lifted his head, watching directly up at the elder standing in front of him.
Something shoved into his chest.
A strip of writing plastic. The elder who handed it over had claws stained green at the tips, dark as corroded copper, steady until they released the plastic and then trembling once.
"For note taking. You are a guardian now," the Elder said. "Ten days. Then rotation."
Bigtooth took it. The plastic was slick with the Elder's sweat. He stared at blank paper. Ten. A number. A loop he could close.
"Ten days," Bigtooth said. "Okay. Ten. I can count to ten. That is… that is within my parameters."
"You must be a shadow!" the elder said and watched intensely to Bigtooth's eyes. "Ducts only, you can fit into drawers if you need to," the Elder cut him off, voice tight. "Seams only. If you hear voices, you stop breathing. If you smell oil, you turn to stone."
Bigtooth's mouth opened to say yes again. He swallowed it and just nodded, hard.
Another elder pressed a kit into his palm. A flat blade. A coil of wire. A ceramic token that felt like ice. Then, after a heartbeat, old encoded RF access tags, not Maan-issued, their edges worn by other hands, their patterning wrong in a way that made Bigtooth's fingers want to trace it. The elder who gave them had a tail gone grey from tip to base, the colour of cold ash, and he kept his body angled so the corridor light did not silhouette him.
"This stays below," the Elder said. "You do not lose it."
"I am a vault," Bigtooth whispered to himself, clutching the token. "A very small, very secure vault."
"Ten days," the Elder repeated. "Then rotation. Whatever happens, do not leave your post!"
Crash.
The door to the outer corridor shook. Dust rained down on Bigtooth's rust-red crown. The frame gave a tiny groan, wood and metal remembering what pry-bars did.
The Elders moved. No goodbyes. No soft words. Efficiency was the only thing left. Two of them shifted to block Bigtooth from the door by instinct, not protection, but line of sight, as if a single accidental angle could matter.
The First Elder attacked the vent grille above the sink. Screws stripped, metal groaned. The grille came free.
A dark, rectangular throat opened in the wall. It exhaled onto his face before any of him entered it, a breath of warm grease and dry metal and the particular dust of old insulation, and somewhere under that the faint sweet bitumen of the coolant line two bends deeper. The duct was breathing toward him. Kin. Safe. Home-shaped. Then the warmth moved past his snout and he heard the low hum behind it, and the vibration reached his feet through the sink edge, confirming what the smell had already reported.
"Go," the Elder said.
Bigtooth scrambled up the sink. His knees scraped the porcelain. He shoved his head into the dark. It was tight. Claustrophobic. Perfect. A Maan's shoulder would wedge and stick; for him, the passage was a tight embrace.
He hauled his body in, scales rasping against the galvanized steel.
Behind him, the grille moved.
Click.
The First Elder slid it into place, slow, careful, as if the sound mattered more than speed. Metal met metal. The elder's ears pressed flat as he listened to the corridor outside, measuring the exact second before the latch failed.
A soft click.
It was far too quiet for what it meant.
The click sealed the room away. It sealed the elders away. It sealed Bigtooth into the duct like a swallowed seed.
He lay in the metal throat and stared at darkness. His breath wanted to run. He forced it into the rule.
Stop breathing if voices.
He heard the Maan voice again, closer now, and the door began to creak under pressure.
He held his breath.
An elder's vibrating voice and thumping came through the grille, filtered, like hearing a prayer through a wall.
It was in the Waihy tongue.
Bigtooth's mind grabbed at it like a hook. Waihy was the language the Meir spoke, the language he had been drilling into his mouth because the exam was coming. The vibrations sounded wrong in that moment, like the ducts changed their pitch.
He did not understand the phrase at first. The vibrations pressed together too tight. But his brain worked anyway, hungry to prove itself even now.
Back up, he thought, because the first sound could mean back. Look up. No. That second part meant no, or do not, the way the teacher had insisted. The tramp meant do not.
His eyes widened in the dark. He felt a thrill of pride like a knife tip.
"Do not look back."
That was it.
He was proud of himself for decoding it. Proud in the middle of a door breaking. A proud child who solved a puzzle while the room burned.
He pulled forward in the duct, obeying the command, and did not look back even though nothing in the duct let him see behind anyway. The obedience mattered more than the physics.
Behind the grille, the door finally gave.
Boots on wet tile. The slap-slap-slap of aggressive entry.
"Clear it!" A Maan voice. Booming. The voice of someone who owned the air.
Bigtooth froze. The narration in his head died. Fear took his hands. He clawed forward. Elbows digging in. Tail dragging. Do not look back. Do not look back.
A wet crunch. Like a melon dropped from a height.
Then a sound that was not a word. A gurgle. A chaotic release of air through liquid.
Bigtooth's huge eyes watered. The dust tasted like iron.
Acting, his brain screamed. The narrative spin-up was desperate, manic. They were acting. It was a drill. Very impressive performance. Academy level.
Another thud. Heavier. A body hitting the floor.
Moving furniture.
He crawled. He crawled until his shoulders burned. He crawled until the sounds of the room faded into the hum of the building.
He reached a junction and curled up, ribs pressed to ribs, and pulled the plastic strip from his pouch.
Ten marks.
He took the bent screw and dug the first mark deeper. He carved until the plastic curled up in a white ribbon.
"Day One," he whispered to himself. His voice was a thread. "Okay. Day One. Ten days. Then rotation. That is the test."
He put the strip away like it could not be trusted to stay real if he looked at it too long.
The duct grew warmer as it dipped. The hum deepened. The vibration of the world above, the screaming, the shooting, the furniture moving, faded into the steady thrum of the ISEMH's bones.
He found the drop. A vertical shaft breathing cold, antiseptic air.
He slid down.
The secret chamber was a tomb for the living. Small. Sterile. The air smelled of ozone and preservation fluids.
Rows of empty hibernation pods lined the wall. One pod sat in the middle of the room.
Bigtooth checked the indicators. His claws clicked against the housing.
Green.
Green.
Stable.
"Ilissir," he whispered, more to anchor himself than to wake anything. His breath fogged the surface, obscuring the sleeping face inside. "Elina. I am on shift. It is me. Bigtooth. Or Trif. Or… the guardian, the maintenance professional. Everything is fine."
He unpacked his tools on the metal shelf. He lined them up. The bent screw. The ceramic token. The RF tags. He adjusted them until they were perfectly parallel and tapped a screen. It flickered once, spat out a date stamp, AC: 36. Then it went dark again. Bigtooth squinted at it, then turned his attention back to the laid out tools.
"Very professional work," he muttered to himself. "Clean lines. Organized access."
He sat on the mat. He wrapped his arms around his knees and rocked once, then stopped as if stopping could make him older. His ear flaps hung down, covering the sides of his face.
Somewhere far above, through layers of concrete and steel, a siren wailed. A thin, strangled sound that meant fire. That meant breach. That meant the furniture was burning.
Bigtooth stared at the plastic strip. He carefully dug the first mark deeper with his claw, slow, the plastic almost broke along the line.
The silence of the room pressed against his ears. The hibernation pod hummed quietly with a deep vibration that only an annil could hear. He knew the pattern. He knew the math.
He looked at the notch.
"Okay," he said. "They come back. In ten days…"
Ten. A small loop. A polite loop. Ten days was nothing. Other recruits got tested for a full year, the whole rotation, seven hundred and four days around Namii and Uhiel, a complete circle of light and shadow before anyone even looked at their paperwork.
He swallowed. Something sat at the back of his tongue that was not dust and not metal and not any taste he had a folder for. It was thinner than iron. Older than the room. His body had a word for it and his mouth did not, so he filed it under Unclassified Flavour and pressed the folder shut before the drawer could ask what else was inside.
He forced the number to stay clean.
"Ten days," he repeated to himself, firmer. "Short rotation. Efficient. Elders know I can handle it."
He swallowed the thought. He did not burn the memory. He just filed it away where it could be managed, to the folder marked Furniture Moving.
"Day One," he told himself. "It is Day One."
He closed his eyes and practiced his Waihy verbs, shaping the sounds carefully in a mouth that tasted of dust and denial.
"I am very professional," he whispered to himself. "I bet you are watching. Do not worry, just take your notes. I will pass this test with flying colors."