The Blood Angels chapter is on the verge of being torn apart by a religious schism in their midst. 

Brother Arkio claims to be a reincarnation of Sanguinius, the Blood Angels' primarch, and spiritual father, and has laid down the law: follow me, or die.

Arkio's brother, Rafen, must decide where he stands in the conflict in the explosive conclusion to the Blood Angels saga.

Book two in the Blood Angels series by James Swallow.