Born into a dead world as a baby, Seraphina Laurent grows up under the protection of Silas Locke, an undead guardian who claims her as his own. In the wreckage of Oceana, they battle mutated monsters and evolved zombies just to stay alive. At the same time, Hecate unlocks a fatal blessing: power that grows with every death. As different factions turn on one another, the fight for survival intensifies—because in this world, dying is never the end.