Warhammer 40,000: Assassinorum Execution Force Novel

Darkness is rising on Achyllus Prime. Severin Drask, sorcerer lord of the Crimson Slaughter Chaos Space Marines, works to harness the power of the Temple of Shades and unleash a tide of daemons upon the Imperium. All that stands against him is an Execution Force of the Officio Assassinorum, four Imperial Assassins - Vindicare, Callidus, Eversor and Culexus -who must set aside their distrust and fight as one if they are to kill Drask and thwart his evil plan.