It is the 42nd Millennium. In the grim darkness of the far future there is only war. Beset on all side by multitudes of enemies, Mankind tethers on the brink of destruction. You are Marcus Aurelian, prodigal Interrogator of the Inquisition. You have been given a task of utmost importance: retrieve the tome of Inquisitor Melbinious and bring its secrets to your master.