The emergency lights, usually a muted amber, pulsed a frantic crimson through the observation slit of Mantas Kaminskas’s Safe Quarters. Outside, Zemyna was dissolving. Not with a roar, but with a horrifying, viscous sigh. The terraced city of Siluva, once a gleaming crown of pale stone and durasteel, was already a flowing sculpture of molten slag. Streaks of solar radiation, magnified by the White Scald’s atmospheric inversion, hit the surface like invisible hammers, turning rock to slurry, metal to liquid, and organic matter to ash. The air shimmered with 200-degree heat, a pressure cookers’ breath visible even through the reinforced viewport’s optical distortion. Mantas watched, his face a mask of grim satisfaction. His breath steamed against the cool glass. Years of ridicule, of being called a crank, a deluded hermit, an applied physicist with a terminal case of paranoia – all of it had been fuel for this moment. They’d laughed at his schematics for the Sub-Terra Shelter, mocked his insistence on redundant cryo-cores and insulated blast doors. They’d all dismissed the mathematical models, the data he’d painstakingly compiled on solar flare anomalies. Now, above, their laughter was boiling away. He traced a finger over the steel frame of the viewport, feeling the faint, controlled vibration of the apparatus humming deep within the shelter’s bedrock. It was a mechanical heart, designed to beat only when fed the raw energy of human guilt. He’d built it. He understood its hunger. And he understood, with a chilling clarity, that the world outside was now its larder. Suddenly, the air in the Safe Quarters grew noticeably warmer. Mantas’s head snapped towards the intercom panel. The core apparatus, usually a silent, thrumming presence, issued a harsh, mechanical chime. It wasn't a warning of imminent failure, but a declaration of immediate need. A deep, guttural sound that resonated in his bones, not his ears. [Coolant Reserves: Draining – 47% Capacity.] Mantas felt a prickle of unease. So soon? The White Scald had barely reached its peak. The machine was demanding more, faster than he’d anticipated. He adjusted a dial on a nearby console, bringing up a diagnostic readout. The primary cell, designed to store the penitent’s energy, showed a meager charge. He needed a true sinner, someone weighed down by profound regret, to stabilize the system. Someone whose remorse would generate enough temperature differential to chill the refrigerant loops and protect the complex. Another chime, more insistent this time. [Coolant Reserves: Draining – 45% Capacity. Thermal Integrity Compromised.] A knot pulled tight beneath Mantas's ribs. This wasn't about vindication anymore. This was about survival. His survival. And the facility's. He needed to find a source of guilt, and fast. Just then, a small red light flared on his exterior surveillance monitor. Motion. At the main blast doors. He zoomed in, the pixelated image resolving through the shimmering heat haze. Two figures, shrouded in what looked like hastily fashioned heat-resistant wraps, were pounding on the meter-thick durasteel. One was tall, broad-shouldered, frantic. The other, tiny, barely reaching the man’s hip. Mantas froze. Tadas. His brother. The same Tadas who’d stood on the stage at the Geothermal Stability Conference, openly mocking Mantas’s “doomsday fantasies,” drawing guffaws from the entire faculty. The same Tadas who’d spread rumors of Mantas’s mental instability, leading to his public ruin and eventual isolation. Now, Tadas Kaminskas was a desperate, burning silhouette against a backdrop of melting concrete. Mantas activated the external audio feed. A distorted shriek of metallic screeches and a faint, desperate voice clawed through the speaker. “Mantas! Let me in! For Zemyna’s sake, open the doors! It’s me, Tadas!” The smaller figure, a child, pulled at Tadas’s leg, her face obscured by a scorched scarf, but her cries were audible, thin and reedy, a sound of pure terror. Mantas felt a surge of triumph, cold and sharp. The prodigal brother, reduced to a supplicant. The ultimate “I told you so.” He almost chuckled, a dry, rasping sound in his throat. “Please, Mantas! My daughter! She’s burning! We can’t last much longer out here!” His daughter. Mantas remembered her vaguely, a bright-eyed toddler in old family photos. She couldn't be more than five or six now. She clutched a scorched stuffed animal, her small fists still beating weakly on the unyielding door. Another chime sounded, sharper, more insistent. [Coolant Reserves: Draining – 42% Capacity. Ventilation Systems: Critical Failure in Sector Beta.] Mantas ignored the system warning for a moment, his gaze fixed on the monitor. He thought of Tadas’s callous remarks, the ruined career, the years of solitude. Oh, Tadas had plenty of guilt to offer. Years of it. Enough to power the central core for days, perhaps. Enough to fully charge the primary cell, to stabilize the complex's climate ecosystem for weeks. But the girl… the girl had no guilt. No dark past. She was unstained. Her small heart held no black bile for the machine to consume. She would be useless as fuel. Worse than useless, in fact. Her presence would be a drain, a mouth to feed, another body consuming precious air and resources without contributing to the refuge’s critical cooling needs. Mantas looked from the terrified face of his niece on the screen to the flashing red warning on his console. The sanctuary was a finely balanced thermodynamic apparatus, a delicate ecosystem. Introducing a blameless child, a non-contributor to the machinery’s insatiable appetite, would be a catastrophic drain. But to leave her outside, to let his own brother’s child burn to ash… The choice settled in Mantas’s mind like cold lead: sacrifice the blameless girl, or forfeit his sanctuary.

The Ash Falls