The Naked God: Flight — Peter F. Hamilton

THE NAKED GOD is the breathtaking climax to the acclaimed saga of The Reality Dysfunction and The Neutronium Alchemist, as nano-augmented Adamists, genetically engineered Edenists, and ancient alien races confront a terror that transcends space and time.

Faced with an interstellar war in which the only weapon is exorcism, the Confederation dissolves into anarchy. For in a desperate act of triage, a few wealthy worlds prepare to sacrifice the mass of humankind to the risen dead souls from the Beyond. Meanwhile, the Possessed are destroying whole planets as they flee the universe in a transdimensional quest to find Heaven.

But there are far worse things than death--or resurrection. And the Possessed are about to discover that chasing paradise is the most horrific, irrevocable mistake they could make...