The barracks was a cavern of iron and shadow, the thin mattresses lined in two long rows like corpses laid out for burial.
Jack sat on the edge of his bunk, one hand pressed flat against his ribs beneath his grey undershirt.
He felt them break.
The memory of the pop was still lodged behind his teeth, the sharp, grinding yield of cartilage under Ryker Voss’s knee.
But now, under his fingers, the skin was whole.
He dug his knuckles into the soft gap between the bones where the fracture had been.
Nothing.
No give, no tenderness.
Only the firm, unyielding cage of his chest, reconstructed while he played dead on the concrete floor of the ring.
Jack stood, his bare feet silent on the cold iron plates.
He took a slow step, forcing his right hip to drop, practicing the shallow, favoring limp he would have to maintain.
The barracks was quiet, save for the low, rhythmic hum of the ventilation shafts.
Three bunks down his row stood empty, their mattresses stripped to the bare wire, the quiet arithmetic of the last cycle’s washouts.
He crossed to his locker and flipped the latch, staring at his reflection in the polished steel disc bolted to the door.
The bruise was still there, a faint, yellowing bloom along his right cheekbone, fading into the hollow beneath his eye.
But it was smaller than it had been hours ago.
It looked like a injury that had been healing for days.
He tilted his face in the dim red light.
In front of Kovac and the instructors, he would have to wince when he lifted his right arm.
He would have to fake the stiffness he no longer felt.
A low red light pulsed on the door frame, followed by a single chime that vibrated through the thin walls.
Shift change.
Jack closed the locker and reached for his gear.
The heavy issued jacket was stiff, the synthetic fabric crackling as he pulled it over his shoulders.
He took his time with the zipper, the collar tabs, the thick gloves that smelled of industrial sealant.
The training rifle was propped against the foot of his bunk, a heavy, gutted block of synthetic stock and cold steel, its firing pin sheared off by the armorer.
It was not a weapon; it was a thirty-pound anchor meant to build muscle and break a recruit’s posture.
He cradled the dead weight against his chest and walked to the pneumatic door.
The frozen air met him at the threshold, carrying the sharp, sulfuric bite of volcanic ash.
It was a physical weight, a presence that wrapped around his face and forced itself down his throat with his first breath.
The wind howled across the open yard, picking up loose gravel and sending it skittering against the low laser barriers that lined the narrow path.
Jack pulled his collar up and walked.
Three things Nolan had taught him, pressing them into his skull during those tight, dark hours in the industrial crawlspaces of New Chicago.
He could still smell the scorching flux, still feel the heavy thrum of the refinery turbines through his knees.
One: brass solder-lighters always go in the palm, not the pocket, so you can feel the heat from the metal before it burns through your clothes.
Two: never trust an institution to keep you safe, because they will sacrifice the lowest percentile first every time.
Three: always map your exits in the dark, because the only thing worse than being trapped is being surprised while you are trapped.
Nolan had never explained what to do when someone else was standing between you and the door.
The path of frozen gravel wound between the humming laser barriers until it opened onto the wide, exposed overlook of Sentinel Post Three.
The post sat on a basalt shelf over the churning caldera.
Down below, the massive heat of the vents threw up a constant, shifting steam-shroud, creating a thermal haze that made the automated heat-sensors on the perimeter wall flicker and reset.
It was a blind spot, a small mercy of geography.
Jack backed up until his shoulders touched the basalt face of the caldera wall.
The stone was cold enough to burn through his coat, but he did not flinch.
He settled his weight against it, cradling the training rifle across his chest, and began his watch.
The first few minutes dragged.
He stamped his boots in a quiet, rhythmic pattern.
Left.
Right.
His breath built a thin crust of ice on his high collar, which he cracked away with a gloved thumb.
He could feel his eyelids growing heavy, the deceptive warmth of exhaustion pulling at the base of his skull.
He shook his head, hard, and dug the heel of his glove into his eye socket until he saw sparks.
Stay sharp.
Nolan’s voice rose unbidden from the dark.
Jack closed his eyes and built the yard in his mind.
The two searchlight towers, sweeping in arcs that overlapped in the center but left a wedge of darkness along the eastern wall.
The laser barriers, low and humming, with a gap between the third and fourth posts wide enough for a man to slip through if he went flat.
The drainage culvert at the base of the caldera wall, choked with frozen gravel but clear of sensors.
He opened his eyes.
The darkness was unchanged, but he knew where the blind spots lay.
The wind rose again, bringing the deep, grinding vibration of the Mother Shaft through the volcanic rock.
The refinery never stopped.
It drank the planet’s blood and turned it into engines, into the endless machinery of war that had drafted him and branded him with a number.
A sudden shudder ran down his spine, so violent his teeth rattled.
The chill was creeping into his joints, turning his fingers into stiff, useless pegs.
Then, the wrongness began.
It started as a sudden, concentrated surge behind his breastbone—not the flush of physical exertion, but a deep, dry heat that pulsed outward along his collarbones.
A hollow, ravenous ache opened in his stomach, as if the warmth were a parasite devouring whatever calories the morning’s ration paste had left him.
He gasped, his breath catching in his throat.
The heat pushed back the frost.
It flooded down his arms, through his hips, into his knees, replacing the numb ache with an artificial, furnace-like comfort.
He stood very still.
His shivering stopped.
The tension drained from his shoulders as his skin registered the pressure of the wind, but the cold itself lost its teeth.
He lowered his collar slowly, exposing his neck to the howling air.
Under his thick winter sleeve, he could feel the capillary ridge on his arm.
It was not visible, but it hummed against his muscle, a tight, pressurized wire anchoring itself to his flesh.
Whatever lived in his forearm was reaching deeper now, aligning itself with his nerves.
A faint, metallic taste rose in the back of his throat, and a brief wave of dizziness made the basalt shelf tilt beneath his boots before the heat stabilized.
The heat radiating from his forearms was growing so intense that his wrists felt slick with sweat beneath the heavy cuffs.
He unhooked the strap of his left glove, pulling it down to let the freezing air strike his bare skin, then pushed back the stiff sleeve of his coat to check the glowing red face of his chronometer.
The digital display counted down the final seconds.
Nineteen.
Eighteen.
Seventeen.
Footsteps scraped against the gravel behind him.
Jack pivoted.
His weight shifted smoothly onto his back foot, the training rifle coming up to a loose, low-ready position.
His thumb searched by habit for a safety catch that wasn’t there.
The silhouette emerged from the swirling ash-fog, lean and hunched, walking with a stiff, grinding gait.
“It’s me.”
Vance.
Jack lowered the rifle, though he kept his grip tight.
Vance trudged forward, his head tucked low.
Vance reached up to shine his small tactical light toward Jack’s face.
Jack forced himself to wince, remembering his broken ribs, and slumped his shoulders to mimic the defensive posture of a freezing man.
But the act was clumsy; he wasn’t shivering.
Vance’s beam lingered.
“Your collar’s down.”
Jack did not answer.
Vance let the light fall.
He looked at Jack’s shoulders.
On Vance’s own coat, the volcanic ash had frozen into a crust of white frost.
Jack’s coat was dry, the flakes melting the instant they touched the synthetic fabric.
“You want to tell me why you’re standing out here like it’s a warm spring morning?” Vance asked, his voice cracked and thin.
“Just cold,” Jack said, keeping his voice low and tight.
Vance reached into his heavy coat, fumbling with stiff, gloved fingers, and pulled out a metal flask wrapped in black insulation tape.
He took a step forward, leaning in close to block the wind, and dropped his voice to a murmur.
“Take it, Jack.”
The name hit Jack in a place the CDF had been trying to cauterize since intake.
It carried the weight of the Chicago crawlspaces, of a life that didn’t have a serial number stamped on its collar.
Jack reached out.
He still had his glove pulled loose, his bare wrist exposed where the sleeve had ridden up.
Vance’s glove had split along the thumb seam, the fabric worn down to a ragged hole.
When the flask passed between them, Vance’s cold, exposed skin brushed directly against Jack’s bare wrist.
The contact held for a fraction of a second.
Vance froze.
He stared down at their hands, where his own ice-cold skin had touched Jack’s.
The air around them was still sub-zero, still cutting and sharp.
But Jack’s wrist was hot.
Furnace-hot.
Vance’s eyes lifted, wide and stark in the dim red glow of the perimeter lights.
“Shit, Jack,” Vance whispered, his voice barely audible above the wind.
“You’re burning up.”
Jack pulled his hand back, stuffing it into his loose glove, but the damage was done.
He could feel the heat still pulsing from his wrist, steam rising in thin, almost invisible wisps into the freezing air.
“Got my face beaten in six hours ago,” Jack said, his voice flat, defensive.
“It’s a fever.”
Vance did not look convinced.
His eyes were sharp, focused on Jack with a quiet, wary confusion.
He did not push.
He turned and faced the caldera, his shoulders hunched against the wind, his shivering already resuming.
Jack walked back toward the barracks, the synthetic fabric of his sleeve rubbing against his skin.
The heat in his chest held steady, a silent, metabolic fire he could neither explain nor extinguish.
It had saved him from the cold, but its warmth was a brand.
Behind him, Sentinel Post Three faded into the red-streaked dark.
And Vance was watching.