They are not afraid of death. But the hunt is open for hunters. The Night Lords are forced to flee to the dark borders of the Imperium, seeking to escape their tireless pursuers - the Eldar of Craftworld Ulthwé. Their path lies to the dead planet Tsagualsa - the world where their primarch died, and where the back of the Eighth Legion was broken. There, history will take a turn and repeat itself, and a new deadly assassin will emerge from the shadows, and the Night Lords will be drawn into a battle they are destined to lose...