Fallen in the heat of battle in King Harald's war, Endre lies in wait for the Valkyries to lead him to Valhalla. Instead of the beautiful warrior maidens of lore, Endre is visited by a mysterious stranger who grants him the gift of immortality. Endre soon learns immortality comes with a thirst for blood which threatens to devour his remaining humanity. His only hope to retain any shred of his former self is to seek the destruction of the Vampire horde his mysterious benefactor unwillingly drafted him into. The story of Endre's journey to immortality in this Prequel to Irresistible, book one of The Bloodlust Chronicles is rendered through a unique mixture of Viking and Vampire lore.