The Deathwatch strike cruiser Incontrovertible Truth, en route to Watch Fortress Erioch, carries many kill-teams to their next mission postings, among their number is Antor Delassio, the 'cursed young prince' of the Blood Angels. Without warning, the ship comes under attack by Chaos Space Marines of the Black Legion, and it falls to Delassio and his battle-brothers to repel the boarders. But his exemplary record in battle and his righteous hatred of the xenos is marred by the secret shame he carries with him, the curse of his Chapter's bloodline. Read it because Find out what a Blood Angel does when he's all alone, far from Baal and suffering from the Black Rage. It's the biggest secret of the Chapter, and if Delassio isn't careful, it might just get out...