The metallic tang of ozone and scorched circuitry filled the corridor. Olev knelt beside Tala, his own suit hissing like a punctured lung. Her face beneath the opaque visor was pale, slick with sweat and grime. He ripped the visor off, letting the slightly less toxic air of the corridor wash over her. Her breathing was shallow, ragged, a faint rattle in her chest. A thin, corrosive film had begun to etch the exposed skin around her neck where the suit had failed. He stripped off his own gloves, the degraded material tearing, and pressed his fingers against the exposed flesh. Acidic stinging sensation immediately followed. He ignored it, focused on the faint, irregular beat beneath her jaw. He dragged Tala into the infirmary, a cramped cubicle repurposed from a storage locker, and laid her on the cot. An orderly, a wizened woman with perpetually chapped hands, rushed over. “Her lungs,” the orderly croaked. “The vapor, it’s… eating at them.” Olev watched as the woman administered a crude antitoxin, a bitter concoction of filtered algae and ground kelp, then connected Tala to a wheezing oxygen recycler. Tala was out of commission, perhaps permanently. Alone, Olev returned to the command center. The bulkhead screen pulsed with red alerts. Toxicity levels climbed steadily. The air re-processors were struggling, overwhelmed by the continuous spew from the ruptured core purifier. He could hear the low thrum of the emergency ventilation straining, a desperate gasp for life. The pressure differential was still too violent for a simple external patch. He ran simulations, his fingers typing against the grimy mechanical console. Every calculation produced the same outcome. The main intake seal, degraded by years of neglect and now attacked by the Caustic Hoar, had to be welded from the inside. His mind raced through the permutations. A robotic drone? Too delicate for the superheated, corrosive environment. Remote-controlled arm? Not precise enough for the complex alloy bond required. It had to be a human, armed with a portable fusion torch, manually sealing the breach. A human would absorb concentrations of acid vapor that stripped suit lining, flesh, and bone within minutes. Panic began to ripple through the lower levels. Olev watched the CCTV feeds. Workers huddled in clusters, staring at the ceiling vents. A scuffle broke out near the hydroponic troughs as someone tried to hoard water. Without Tala, the fragile order he had imposed threatened to unravel. He barked orders into the intercom, his voice thin, strained. “All personnel, remain in your assigned sectors! Unauthorized movement will be met with force!” His words felt hollow, lacking Tala's quiet authority. He needed to buy time, but time was a luxury the Stronghold no longer possessed. The structural integrity indicators on the main screen flickered ominously. The acid snow wasn't just external; it was now attacking from within. A shadow fell across the command center door. Olev turned, his hand instinctively going for the stun-baton holstered at his hip. It was Zoya Kett, her face streaked with grime, her uniform patched and torn. Her eyes, however, held a stark, unwavering clarity Olev hadn't seen in years. “It has to be welded from the inside,” Zoya stated, her voice surprisingly steady. “A suicide run.” She had been watching the diagnostics, too. Of course she had. The former building manager, meticulous even in disgrace. “You’ll need someone who knows the schematic, who can move fast. Someone you don’t mind losing.” Olev stared at her, assessing the soot on her collar. “And you volunteer for this?” His tone was laced with disbelief, a flicker of the old animosity. Zoya met his gaze, unflinching. “Not for you, Tarnov. Not for this place. For them.” She gestured vaguely towards the general population levels below. “The workers. The ones you’ve starved and beaten. The ones who follow orders because they have nowhere else to go. I’ll go in. I’ll do the weld. But I have conditions.” Olev said nothing, waiting. “First,” Zoya continued, her voice gaining steel, “you guarantee the survival of every single worker left alive in this Stronghold. No more arbitrary culling, no more cutting rations for 'insubordination.' They follow the rules, they get to live. You swear it on your engineer’s honor.” The phrase, once used to mock his rigid blueprints, held a bitter edge. “Second,” she said, “Branis. He tried to leave us all to die. You exile him. Out the airlock. Into the Caustic Hoar.” This was not the broken woman he had assigned to sludge-hauling. This was a leader, making demands. He considered the terms. To guarantee the workers’ survival meant relinquishing a degree of his absolute control, trusting them to his word. To exile Branis… that was tempting, a justice so pure it almost felt like a dream. But to sacrifice Zoya, the woman he had meticulously broken, to give her this noble end? It was an unexpected twist in his carefully orchestrated vindication. He stood there, silent, the red alerts on the screen painting his face in a hellish glow, weighing a life for a life, and the future of his fragile kingdom. Below the deck plating, inside an unheated holding cell, Branis Tarnov pressed his ear against the intake vent. He’d caught fragments, muffled words, but enough. *“Suicide run… exile him… Caustic Hoar.”* The chill in his limbs gave way to sharp venom. Exile? To be cast out into that freezing, corrosive hellscape? No. If he couldn't have warmth, if he couldn't have control, then no one would. Branis, desperate and cunning, had been hoarding a small, sharpened shard of ceramic from his dinner plate. He worked feverishly, silently, prying at the loose grate of his cell’s floor vent. It was barely large enough for him to squeeze through, but he was thin, starving. He gritted his teeth against the pain, forcing his emaciated body into the cramped, dark shaft. The air was thick with the scent of mildew and decaying matter. He crawled, guided by the faint hum of machinery, towards the heart of Olev’s engineered fortress: the main power conduits leading to the colossal thermoelectric generator. If he could disable that, plunge the entire Stronghold into darkness and cold, the acid steam would consume them all. Everyone would die, and Olev Tarnov would not have the satisfaction of watching him freeze alone.

The Ultimatum