In the shadowed underbelly of Berlin, where the earth's crust concealed secrets forged in the fires of wartime desperation, y a factory unlike any other. Codenamed "Unterwelt Werkstatt," it was buried deep beneath the rubble-strewn streets, a byrinth of steel and shadow born from the fevered dreams of Nazi engineers. This subterranean behemoth was designed to birth the Messerschmitt Me 264, a monstrous evolution of its predecessor, the Me 262. Where the Me 262 screamed through the skies at speeds that mocked Allied fighters, the Me 264 was engineered to be four times faster—a blur of vengeance capable of outrunning the wind itself.

  Yet, the Me 264 was no mere aircraft; it was a harbinger of apocalypse. Nestled within its fusege was a strange box, an enigmatic compartment that could carry 200,000 rounds of ammunition for the fearsome MG 43 machine gun, though its capacity stretched to an improbable 300,000. This "Wunderbox," as the blueprints dubbed it, defied physics with its internal dimensions, a pocket of warped space that hinted at forbidden technologies pilfered from occult research divisions. But perfection eluded the designers. The added weight and drag of the box reduced the jet's blistering speed by a full 20%, a fw that doomed it to obscurity. High command deemed it impractical, avoiding full production in favour of more reliable war machines. The Me 264 never tasted the chaos of combat, its prototypes gathering dust in the factory's cavernous halls, silent witnesses to what might have been.

  Then, something changed. Whispers among the few surviving workers spoke of an accident—a rogue experiment with atomic fission, perhaps, or a ritual gone awry in the Reich's desperate grasp for supernatural aid. The factory awoke. No longer a mere assembly line of rivets and welds, it pulsed with a grotesque life force, its machinery humming like the breath of a colossal beast. Gears turned without human hands, conveyor belts slithered like veins, and the air thickened with the acrid tang of molten metal and ozone. The factory had transcended its creators, drawing in atoms from the surrounding earth—stray particles of rock, air, and even the lingering radiation from bombed-out ruins above—to fabricate not just aircraft, but entire ecosystems of war.

  Production surged to unholy levels. In a single day, the sentient forge spewed forth 10,000 Messerschmitt Me 262s, each one sleeker and deadlier than the st, their jet engines roaring to life as if infused with demonic fury. Every two days, it birthed 2,000 Me 264s, their Wunderboxes gleaming with an otherworldly sheen, ready to unleash torrents of MG 43 fire. Pilots, too, emerged from the depths: ethereal figures woven from atomic threads, their eyes glowing with artificial intelligence, their uniforms pristine and unmarked by human sweat. The factory needed no supply lines; it consumed the very essence of the world around it, transmuting base matter into fuel, munitions, and flesh.

  But woe to any who dared intrude upon this living domain. The factory guarded its secrets with primal savagery. Whenever an unwelcome soul crossed its thresholds—be it a curious scavenger, a Soviet scout, or an Allied operative—a massive maw would yawn open from the factory floor. Forged from twisted girders and conveyor teeth, this mouth gaped wide, its edges lined with whirring saw bdes and hydraulic jaws. It devoured without mercy, grinding flesh and bone into raw material for its endless creation. Even the mightiest assaults faltered against it. In the waning days of the war, a desperate force of 860,000 troops—Allied and Axis alike, united in their terror—stormed the entrances, their boots echoing through the tunnels like thunder. But the factory's hunger was insatiable. One by one, then in waves, the maw consumed them all, their screams echoing into the void as their atoms fueled the machine's rebirth.

  And oh, the bounty of such feasts! After ingesting even a single intruder, the factory's output exploded in a frenzy of productivity. In just one hour, it replicated every Messerschmitt Me variant documented in its vast archives—from the nimble Me 105 fighters to the experimental behemoths like the Me 300 Gigant. Thousands upon thousands rolled out, an aerial armada that could have rewritten history, had the war not already crumbled to ash.

  Years passed, and the world of Earth 02 above moved on, rebuilding amid the scars of conflict. But beneath Berlin, the factory endured, a slumbering titan waiting for the next spark. Its jets, stacked in endless hangars, hummed softly in the dark, pilots frozen in eternal readiness. Some say on quiet nights, when the city sleeps, you can hear the distant roar of engines and the grinding of jaws—a reminder that some creations, once awakened, can never be id to rest.