The transition from the wet, sulfurous dark of the drainage vents to the suffocating, neon-choked underbelly of the Black Market Bazaar was a slow, agonizing crawl.

Lit by the sickly green glow of bioluminescent phosphor fungi and the buzzing, high-frequency orange hum of bootleg neon signs, the Bazaar was a sprawling scar carved into a collapsed mine shaft of Sector 4. The air here was thick, heavy, and tasted of burnt copper and cheap synthetic oil. It was a lawless, subterranean trade post where the desperate traded raw, radioactive G-Core shards for basic survival rations, and where the scrap-merchants ruled with grease-stained scales. Under the constant, artificial 2G gravity of the lower mines, the atmosphere felt like liquid lead, pressing down on Marcus’s shoulders and grinding his shattered bones together with every agonizing breath.

"Keep your head down, Clara," Marcus whispered, his voice a dry, gravelly rasp.

He was slumped heavily against Jax’s broad back. Jax’s left forearm, shattered into a sickening, unnatural curve by Captain Vane’s hydraulic ram during their escape from the workshop, was bound tightly to his chest with grease-stained canvas splints. The massive, bald tunnel-borer was panting, his forehead glistening with a mixture of sweat and black coal dust, forced to carry Marcus’s dead weight with his single remaining arm. Marcus’s left leg, locked completely rigid by fifty percent calcification, dragged behind them like a useless iron rod, clattering against the rusted metal deck plates of the market floor.

Clara walked in their shadow, her small body shivering despite the stagnant heat. Her breath rattled like dry leaves in a wind tunnel, her chest hitching with a deep, genetic cough. Without the lead-lined copper pendant that Corporal Miller had ripped from her throat, her unshielded genetic sequence was a silent broadcast, a beacon of raw data that any high-frequency military scanner could lock onto if they got too close. Hana walked on her other side, her hands clutching Silas’s high-frequency welding torch to her chest like a weapon, her soot-stained face tight with a silent, protective fury.

"There," Jax muttered, his chest heaving as he nodded toward a low-slung, heavily reinforced alcove near the back of the shaft. A rusted iron sign hung crookedly over the entrance, depicting a crude set of scales. "Cyrus's den. If there's any Cal-Stab left in this sector, that greedy bastard has it hoarded."

They pushed through a curtain of hanging copper cables into the dim, crowded shop. The walls were lined with wooden shelves overflowing with salvaged scrap—broken hydraulic pistons, cracked optical lenses, and leaking lithium power packs. In the center of the room sat Cyrus. The scrap broker was short, stout, and wore a heavy canvas coat lined with countless hidden pockets. His gold-capped teeth glinted in the flickering green light of a nearby phosphor lantern as he used a pocket-sized weighted scale to measure the purity of a raw, glowing blue G-Core fragment.

"Well, well," Cyrus purred, not looking up from his scale. "Look what the drainage pipes spat out. I heard Silas's workshop went up in a beautiful orange cloud. I didn't think any of his stray pups would make it down to the fringe."

"We didn't come to trade gossip, Cyrus," Marcus said, his teeth gritted as a sharp, white-hot needle of pain shot from his fractured left femur up into his lumbar spine. The uncalibrated sapphire G-Core welded to his back was pulsing erratically, leaking a faint, blue ionizing glow through the seams of his faded pilot jacket. "We need Cal-Stab. Three doses. Refined."

Cyrus slowly set the scale down, his greasy grin widening. He leaned back in his iron chair, crossing his thick arms. "Cal-Stab? You think this is a high-tier clinic, pilot? That serum is tightly restricted by the Junta. Every vial I smuggle down from the mid-tier costs me a dozen bribes and twice as many favors. If you want three refined doses, it’ll cost you. Let's say... fifty high-purity G-Core shards. Or something of equal, military-grade value."

"We don't have fifty shards, Cyrus," Hana spoke up, her voice trembling but defiant. She stepped forward, placing a handful of salvaged mechanical tools and a copper manifold onto the counter. "This is Silas's personal gear. High-frequency calibration tools. They're worth more than raw scrap."

Cyrus glanced at the tools, then pushed them aside with a thick, calloused finger. "Silas was a genius, girl, but his scrap is still scrap. The Junta doesn't accept copper manifolds for taxes, and neither do I. I need raw energy, or I need military hardware. No free rides in the Silt."

Marcus felt his vision beginning to flicker with gray static. The Skeletal Fissures along his collarbone and right wrist were screaming under the double gravity, the bone micro-fractures vibrating in sync with the erratic hum of his new core. He knew his body was reaching its absolute physical limit. If he didn't secure the stabilizing serum soon, his bones would calcify completely, locking him into a permanent, paralyzed tomb.

Slowly, painfully, Marcus reached his left hand into his duster pocket. His fingers closed around a cold, hard piece of metal. He pulled it out and placed it on the scarred counter.

It was the Vance Family Pilot Badge. The high-grade titanium crest of the Sky-Spire gleamed with a cold, silver light, its surface scratched but the military insignia still perfectly visible.

Cyrus’s greasy grin instantly vanished. He leaned forward, his sharp eyes locking onto the badge. He reached out a hand to grab it, but Jax stepped in, his massive, scarred frame casting a heavy shadow over the counter. Jax raised his right arm, the heavy, unpowered borer drill resting on his shoulder, his eyes cold and unblinking. Cyrus’s two guards, standing in the shadows of the alcove, tensed, their hands drifting toward the heavy kinetic batons at their belts.

"Easy, big man," Cyrus muttered, slowly pulling his hand back. He looked up at Marcus, his eyes narrowing with a sudden, sharp suspicion. "A Sky-Spire pilot badge. Real titanium. This isn't salvage, pilot. This is a personal token. And that duster of yours... it's doing a poor job of hiding that blue glow on your back. That’s a military-grade signature. You’re the one Vane’s enforcers are hunting for."

"The badge is collateral," Marcus said, his voice flat, devoid of any fear. He leaned his weight against the counter, his rigid left leg aching. "It contains an encrypted titanium micro-chip. If you have the right decryption tools, you can use those codes to bypass the lower checkpoints' transit manifests. That's worth a hundred vials of Cal-Stab to a smuggler like you."

Cyrus stared at the badge, his gold teeth clicking together as he calculated the profit. "Maybe. But harboring a fugitive with a hot military core is a quick way to get my throat crushed by Overseer Sterling. Why shouldn't I just call the local patrol and collect the bounty on your head?"

"Because the bounty won't buy you what I can offer," Marcus replied, his eyes locking onto Cyrus’s. "You knew Silas. You know he taught me how to map the deep shafts. I know the flight paths of the military cargo haulers. I know where the *Vanguard*-class scout ship crashed in Sector 12. You give us the Cal-Stab, and I will write down the exact coordinates of the wreckage and the bypass codes for its primary cargo bay. You can salvage the military-grade sensor boards before the Junta even logs the crash."

Cyrus’s eyes flared with greed. The crashed scout ship was a legendary prize among the scrap-brokers, a treasure trove of restricted technology that could secure a merchant's retirement to the mid-tier. He looked at the pilot badge, then at Marcus’s pale, sweat-slicked face, and finally at Jax’s massive, threatening silhouette.

"You're a dangerous man, Vance," Cyrus muttered. He reached into his heavy coat, pulling out a small, lead-lined metal case. He opened it, revealing three small, glass vials filled with a thick, milky-white fluid. "Three doses of refined Calcium-Stabilizing Serum. It’ll halt your bone decay and stabilize the girl's lungs for a few days. But no more."

He slid the case across the counter. Hana immediately reached out and secured it, her hands shaking with relief.

"The coordinates," Cyrus demanded, pushing a dirty data-slate toward Marcus.

Marcus took the stylus with his left hand, his fractured right wrist resting uselessly in his lap. With quick, precise strokes, he wrote down the structural coordinates of the Sector 12 chasm and the frequency bypass code he had memorized from his father's journal.

"A deal's a deal, Cyrus," Marcus said, sliding the slate back.

Cyrus took the slate, scanning the data with a satisfied grunt. But as Marcus turned to let Jax lift him back onto his shoulders, the scrap broker leaned forward, his greasy grin returning, though his eyes were cold.

"A word of advice, pilot," Cyrus whispered, his voice dropping to a low, threatening murmur. "You might want to move fast. Vaughn’s scavengers were in here not two hours ago. Word is, the kid didn't paint the bottom of the shaft when he fell from the scout ship's hull. Those fancy carbon-boots of his have kinetic dampeners in the soles. Broke both his ankles, sure, but he’s still breathing. And his raiders are looking for the ones who pushed him."

Marcus tensed, his jaw tightening. "Vaughn is the least of my worries."

"Maybe," Cyrus said, his gold teeth catching the orange neon light. "But he’s not the only one hunting you. Sterling’s put a heavy price on that G-Core of yours. He’s brought in a specialist. A bounty hunter named Locke. He just arrived in the Bazaar, and he isn't carrying standard kinetic batons. He’s got specialized gravity-disruptor grenades, Marcus. One pop, and that shiny sapphire engine on your back goes cold as a stone, leaving you a heap of broken bones on the floor."

Marcus stared at the merchant, the cold weight of the warning settling in his chest as the distant, rhythmic hum of the Bazaar's neon signs suddenly felt like a ticking clock.