Guilliman, resurrected through a combination of alien technology and Imperial science, leads the to reclaim lost worlds. Central to this effort are the Primaris Space Marines , a new breed of warriors developed in secret by Archmagos Belisarius Cawl over ten thousand years. The Plague Wars of Ultramar
The titular weapon in Godblight is terrifying. It is a poison that reverses the Imperial faith. If Mortarion injects it into a planet, the planet begins to believe that the Emperor is dead, that Nurgle is love, and that decay is salvation. It weaponizes hope by corrupting it into despair. dark imperium black library
For the Black Library, this was a narrative goldmine. Dark Imperium allows the reader to feel the confusion and despair of the common citizen and the Space Marine alike. It validates the new tabletop edition (8th Edition) not just through rules, but through a story that justifies why everything is different. It is a poison that reverses the Imperial faith