The Sword of Hyperborea appears in the unlikely possession of an up-and-coming blues musician in Chicago, 1952. Even for a talented musician, Elijah Bone is a little different, and the strange voice that whispers to him has its own plans for him to fulfill. Delta blues, supernatural creatures, and secret societies collide in the conclusion of this Mignolaverse saga! New Mignolaverse lore, written by Hellboy creator Mike Mignola with collaborator Rob Williams, and featuring the art of Laurence Campbell with colors by Quinton Winter.