Cast into the Vale of Sorrow upon thunder and lightning, the Stormcast Eternals of Lord-Celestant Tarsus Bull-Heart seek the Starless Gates and an audience with the fabled lord of the Undead, Nagash.

But when the Hallowed Knights are ambushed by Khorne's own Bloodbound, they are forced into a pact with a creature from an elder age, a vampire of dubious provenance, one whose name resonates throughout history...Von Carstein.