The Neutronium Alchemist: Conflict

Description for THE NEUTRONIUM ALCHEMIST:  CONFLICT by Peter F Hamilton:

The Neutronium Alchemist continues the acclaimed, best telling saga of The Reality Dysfunction, as nano-augmented Adamists, genetically engineered Edenists, and ancient alien races confront a terror that transcends space and time.

Seeking vengeance for her people's genocide, Dr. Alkad Mzu escapes Tranquillity to recover her invention, an ultimate weapon called the Alchemist. But why seek revenge if the dead come back?

The war of the Possessed has proved that souls are real, eternally suffering in the Beyond, desperate to escape. Across the galaxy, trauma-shocked humans ask, "Why fight an enemy you will become? Why live, die, exist at all?" Alien species have destroyed themselves when faced with the truth of the Reality Dysfunction--and the human race may be next...

this is #4 in The Reality Dysfunction Series.