The world ended once. It won’t survive ending again. Centuries after the great Collapse, humanity has clawed its way back from the brink, forging empires from the ruins of the old world. But when a fragment of pure black onyx is discovered deep beneath the wastelands, everything changes. Varian Xyros never wanted to be a hero. But when he uncovers the terrifying secret buried within the onyx-one that could rewrite reality-he becomes the most wanted man on the planet. Governments want it. Warlords will kill for it. And something far older than humanity is already watching. As the first whispers of war rise across the fractured Earth, Varian faces an impossible choice: unleash a force beyond control, or let the last light of civilization flicker out forever. One stone. One secret. One future. The dawn of a new era-or the beginning of the end.