In the grim darkness of the far future . . .
Brother is set against brother as humanity's finest warriors face their greatest foes - each other!
The Soul Drinkers are Space Marines: fearless, devout warriors of the Emperor, but such immense power and position leads to the ever-present temptation of pride and thereby damnation.
When a sacred weapon is stolen from them by another Imperial faction, the Soul Drinkers' most powerful psyker will brook at nothing less than vengeance for this insult.
The Emperor's men, unified in the cause of the Imperium, are divided. Alliances are broken, brothers are betrayed, blood will be spilt - and the most insidious of humanity's enemies flourish: the daemonic forces of chaos!