Betrayer: Blood for the Blood God - Horus Heresy #24 Hardcover (Warhammer 40K 30K)

The Shadow Crusade has begun. While the Ultramarines reel from Kor Phaerons surprise attack on Calth Lorgar and the rest of the Word Bearers strike deep into the realm of Ultramar. Their unlikely allies Angron and the World Eaters continue to ravage each new system they come across - upon the garrison planet of Armatura this relentless savagery may finally prove to be their undoing. Worlds will burn Legions will clash and a primarch will fall.