Deep beneath the rolling hills of Bavaria of Earth 02, hidden from the prying eyes of history's tyrants and victors alike, y a cavern of impossible proportions. Stretching one hundred miles in length and width, this underground megafactory was no mere relic of human engineering—it was a living, breathing entity, forged in secrecy during the chaotic dawn of the 20th century. Discovered by accident in the waning days of World War II, its existence defied logic, blending ancient mysticism with industrial might. The cave's walls, etched with glowing runes that pulsed like veins of ore, concealed a production line that churned out weapons of war on a scale unimaginable to mortal minds.
The factory's origins were shrouded in myth. Legend whispered that it was built by an enigmatic order of engineers in the te 1930s, drawing on forbidden knowledge from alchemical texts smuggled out of forgotten libraries. But its true guardians were the humanoids—ethereal beings resembling humans but with skin like polished steel and eyes that gleamed with otherworldly intelligence. These tireless workers, numbering in the thousands, operated the vast assembly lines with precision that bordered on sorcery. Day after day, from 1945 onward, they produced 200 million units of each weapon type: the formidable Tiger tanks, with their sloped armor and roaring engines; the heavier Tiger IIs, behemoths designed to crush any opposition; submachine guns like the MP 30s and MP 44s, compact and deadly in close quarters; machine guns such as the MG 34s and MG 45s, capable of unleashing storms of lead; and the crown jewel, the ME 569 jets—sleek aerial predators equipped with four massive turbofans that screamed through the skies like vengeful spirits.
These were no ordinary armaments. Unlike the rust-prone relics of the surface world, the factory's creations were imbued with an arcane resilience. They did not corrode, nor did they succumb to the ravages of time or battle. From 1945 to 2014, they remained pristine, as if freshly forged. But their most extraordinary feature y in their ammunition systems. Eschewing conventional bullets and shells, these weapons required only the humblest of offerings: pebbles. A user needed merely to drop a handful into a specialized box affixed to each device—a tank's turret, a machine gun's feed mechanism, or a jet's underbelly pod. As the pebbles tumbled in, the box expanded seamlessly, its metallic sides stretching like living tissue. Through some alchemical transmutation, the stones morphed into perfect ammunition: high-velocity rounds for the MP 30s and 44s, armor-piercing shells for the Tigers, or air-to-air missiles for the ME 569s. No factories, no supply lines—just the earth's own detritus, transformed into instruments of dominance.
The cave's discovery—or rather, its evasion—added yers of intrigue to its lore. During the height of World War II, the man orchestrating the genocide across Europe, Adolf Hitler, sought every advantage to fuel his crumbling Reich. Whispers of the megafactory reached his ears through captured spies and occult advisors. Yet, when confronted by the Angel of Truth—a celestial entity said to guard the cave's entrance, manifesting as a radiant figure with wings of light—Hitler faltered. The angel demanded a confession: admit to the systematic extermination of an entire race, and the factory's secrets would be his. Prideful and deluded, he refused, denying the horrors he had unleashed. The angel, bound by divine decree, sealed the cave from his forces, rendering it invisible to the Nazis' desperate searches. Radar, scouts, even esoteric rituals failed; the entrance shimmered like a mirage, eluding them until the war's end.
It was the advancing U.S. forces, probing the ruins of the Third Reich in 1945, who stumbled upon it. A ptoon of American soldiers, following anomalous seismic readings, bsted through a concealed rock face and beheld the wonder within. The humanoids, far from hostile, greeted them with mechanical courtesy, their voices echoing like tuned bells. "We produce for those who seek bance," they intoned, revealing the endless production lines humming in the dim, rune-lit expanse. The Americans, awestruck, documented the find in cssified reports, but chose secrecy over exploitation. The factory continued its output unabated, stockpiling arsenals in vast subterranean vaults, waiting for a purpose that never came.
Self-sustaining in every way, the megafactory drew from its own resources. Integrated mines burrowed into the cave's depths: veins of pure metal for hulls and barrels, lead deposits for projectiles, and even explosive quarries yielding votile compounds for charges. A central testing b, staffed by the most innovative humanoids, served as the heart of innovation. Here, they mixed earthly materials—cys, minerals, and exotic ores—in glowing crucibles, birthing new resources from alchemical fusion. Each successful experiment triggered a miracle: the cave itself expanded, its walls groaning and shifting to accommodate fresh mines. Tunnels snaked outward, revealing untapped lodes, and mining operations commenced immediately, feeding the insatiable assembly lines.
This eternal cycle persisted until December 10, 2014, when the factory's invincibility was tested. An rogue inventor, tinkering in a remote workshop, crafted a monstrous 200-caliber round—a behemoth projectile designed for experimental artillery. Fired in a cndestine test, it struck a stray Tiger II that had somehow surfaced from the depths. For the first time, the indestructible armor buckled, a dent marring its fwless surface. The humanoids, ever vigint, detected the anomaly through their networked senses. They retrieved the damaged tank and the offending ammo, analyzing it in the testing b. Within hours, modifications rippled through the entire production: molecur reinforcements, enchanted alloys, and deflection fields woven into every weapon. Now, even the mightiest rounds bounced off like rain on stone, harmless and futile.
As the years stretched on, the megafactory remained a silent guardian, its humanoids toiling in the shadows. What purpose drove them? Was it preparation for a future war, or a cosmic jest at humanity's folly? The cave expanded ever outward, a hidden empire beneath Germany's soil, producing wonders that blended steel and sorcery. And in the quiet hum of its machines, one could almost hear the echo of the Angel of Truth, whispering warnings to those who dared seek its power.