The basalt-cragged mountain vault loomed beneath a sky of iron gray, its jagged walls etched with veins of molten ore, each seam a pulse of heat that pressed the air into a stifling shroud. Dust drifted in sluggish currents, settling on the skin with a gritty weight that slowed the heart, each grain a reminder of stone's dominion. The ground rumbled, a low growl of shifting rock, its surface cracked and unyielding, threatening to grind bones with every step. Beyond a fracture where the vault's core glowed crimson, a rift shuddered—a molten press that radiated a force so immense it could pulverize the stars themselves. The Iron Forge, the seventy-third force, had stirred, its boundless crush of infinite power a silent vow to grind Lin Feng's spirit to dust.