The walls have fallen, the gates breached, the defenders slain. The Warmaster stands on the verge of victory. Horus Lupercal, once beloved son, has come to murder his father. The Emperor, beacon of hope and unscrupulous tyrant, must die. Countless lives have been extinguished and even primarchs, once thought immortal, have fallen. The Emperor’s dream lies in tatters, but there remains a sliver of hope. At the final hour, the Emperor rises. With him come his Angel, his Praetorian, and his Captain, all determined to enact terrible vengeance.