As the Red Waaagh! rages through the Sanctus Reach, the governor of the hive world of Ghul Jensen orders all his world’s forces to the capital, Hive Jensen, to defend it from the inevitable invasion. For Inquisitor Emilio Mazarin of the Ordo Xenos, this is the perfect opportunity to carry out the secret mission with which he has been tasked – a mission that will decide the fate of Hive Jensen and that of its governor…