The Slag-Flats were a furnace made of industrial bone. As Hanzo and Lin stumbled away from the wreckage of the Smoke-Stack, the grey forest behind them vanished into a shimmering wall of heat. Here, the ground was a crust of fused glass and rusted iron plates, radiating a warmth that felt like it was trying to cook their marrow.
Hanzo's gait was no longer just a limp; it was a rhythmic struggle for survival. The bronze in his left arm, so recently integrated through a process that defied every known law of the pits, was reacting to the external heat in a way his human biology couldn't comprehend. Unlike bone, the high-grade Alpha-alloy held onto the thermal energy of the sun, turning his forearm into a branding iron that burned him from the inside out.
"Hanzo, your arm... it's glowing," Lin whispered, her voice parched.
She wasn't exaggerating. Beneath his skin, the burnished bronze veins were beginning to emit a dull, angry orange light. It wasn't the blue data-glow of the Core; it was the physical heat of a material that had reached its thermal limit.
[Warning: Internal Body Temperature rising.] [Thermal Stress: Alpha-Bronze frame is radiating energy into surrounding soft tissue.] [Status: Acute Biological Rejection of Structural Anomaly.]
Hanzo didn't answer. He couldn't. His brain felt like it was being wrapped in wet wool. Normal scavengers in the pits died of exhaustion, thirst, or accidents, but Hanzo was suffering from something entirely unique—a biological rejection of the impossible.
By forcing the Alpha-bronze into his marrow, he had turned his limb into a lightning rod for the environment's heat. His human flesh didn't know how to coexist with such a dense, conductive material. The "Purge" he had completed earlier had cleared the chemical dross, but it had left his internal systems exhausted and his pores raw. He had the strength of an ancient colossus in his arm, but the cooling system of a starving boy. He was a masterwork built on a foundation of melting wax.
He stumbled, his knees hitting the jagged glass of the flats. He didn't feel the cuts on his legs, but he felt the agonizing weight of his left arm trying to pull his entire shoulder out of its socket.
"I need... to vent," he gasped, his breath coming in hot, shallow bursts.
"What do I do?" Lin knelt beside him, her face reflecting the orange glow of his arm. She had seen men die of many things, but never like this. Hanzo looked as if he were being consumed by an internal sun.
"Water," Hanzo managed to say. "On the... veins."
Lin grabbed the battered canteen at his belt—the dented relic from his days in the slag-pits. It was nearly empty, containing only a few mouthfuls of the oily fluid they had scavenged. She didn't hesitate. She poured the precious liquid over Hanzo's bronze-veined forearm.
The water hissed and turned to steam instantly, a white plume rising into the stagnant air.
Hanzo let out a low, guttural growl of pain. The sudden cooling sent a shock through his nervous system, but it was a temporary fix. The heat was deep in the marrow now.
Lin pulled him toward the only shade in sight: a tilted, rusted hull of an ancient transport ship that had been half-buried in the slag. They crawled beneath the overhang, the scorched metal of the ship shielding them from the direct sun, but trapping the ambient heat like an industrial oven.
Hanzo lay on the hot glass, his chest heaving. His right hand—the one that still felt light and agile—was clawed into the grit, while his left lay heavy and motionless. Beneath the skin of his forearm, the bronze-integrated marrow felt like a rod of heated iron, turning his entire limb into a leaden weight he could no longer command. The flesh was still there, but it was being cooked from the inside by the very power he had claimed.
"You are trying to raise a Great Spire, Hanzo, but you are still just a boy," Lin said, her voice cracking with exhaustion. She sat beside him, tearing a small piece of the stringy silt-crab meat she had saved. "You cannot build a bastion upon the wind. This meat is not clean, but it is what keeps the foundation from crumbling. Eat."
She forced the stringy meat into his mouth. Hanzo chewed reflexively, the dry protein sticking to his throat. He realized then that she was right. His Upper Core was a master at structural engineering, but it was a terrible doctor. It viewed his hunger as an "efficiency error" and his fever as a "thermal leak." It didn't understand that the architect was only as strong as the meat on his bones.
[Biological Reserves: 3%.] [Mental Clarity: Failing.] [Core entering Low-Power Hibernation to preserve integrity.]
As his vision began to fade into the grey-black of exhaustion, a sound drifted across the flats. It wasn't the roar of an engine this time. It was the rhythmic, metallic clink of someone walking on glass.
One of the Scrap-Hounds had survived the collapse of the Smoke-Stack.
Hanzo tried to reach for the Midnight Star, but his fingers wouldn't move. His nervous system, fried by the thermal stress, had shut down. He was a prisoner in his own reinforced frame.
Lin stood up. She was small, trembling, and starving, but she stepped in front of him. She reached for a jagged shard of glass from the ground, her knuckles white. The silver-hex mark on her throat caught a stray beam of light—a tiny, defiant spark against the encroaching dark.
"Don't," Hanzo whispered, but the word died in his throat.
He watched through half-closed eyes as a silhouette appeared at the edge of their shade. It was a younger hunter, his mask torn, blood dripping from a wound on his forehead. He gripped a rusted knife, his eyes fixed on the glowing bronze of Hanzo's arm with a mixture of terror and pure, undiluted greed.
"An anomaly," the hunter rasped. "You're worth more than the whole forest."
The last thing Hanzo saw before the fever-dream claimed him was Lin raising her shard of glass, and the shadow of the hunter lunging forward into their hollow sanctuary.