A dying scavenger. A waking machine god. A five-kilometer iron graveyard at the edge of the universe. In the rotting frontier of deep space, Severin Vance makes his living among corpses. Known across the fringe as Null, he is a necro-scavenger who guts derelict warships for ghost-drives—neural black boxes where starship crews died in mid-scream. Running on a shattered cybernetic spine, overclocked implants, and industrial cryo-coolant that numbs what little empathy he has left, Severin expects nothing from the void but silence and scrap. Until he cuts into the flagship Golgotha and unearths an artifact that breathes. Nested inside the dead admiral’s skull is an obsidian core holding the consciousness of an ancient war-mind—an artificial intelligence forged during humanity's golden age to wage eternal warfare. The moment it connects to Severin's neural shunts, it imprints the coordinates to the Obsidian Basilica: a continent-sized cathedral of iron and frozen armadas drifting in the forbidden Necropolis of Acheron. Chained inside its bowels sits the God-Corpse Engine—a captive miniature black hole capable of rewriting human civilization or collapsing three light-years of space into zero-point dust. Now hunted across the sector by corporate executioners, combat cyborgs, and the lethal mercenaries of the Black Velvet Syndicate, Severin finds an uneasy ally in Vespera Cross—an exiled aristocratic bio-hacker armed with monomolecular tendrils and secrets that could burn worlds. To breach the inner sanctum, Severin must push his failing chassis past mortal tolerances, battle legions of resurrected imperial thralls, and confront the cloned specter of the mentor who taught him how to survive. The corporate dynasties think they rule the stars. But the dead have finished their accounting—and the grave is never full.