To reclaim her throne from a usurper, a misunderstood princess with the forbidden power of necromancy is forced to summon a legendary spirit knight as her champion. But the knight she resurrects is Kaelen—the last son of a rival house, a warrior who died believing her family were his ultimate betrayers. Bound by an unbreakable, ancient oath, he must protect the woman he despises. As they navigate a treacherous court of gothic intrigue, they uncover a conspiracy that runs deeper than their centuries-old feud, unearthing a tragic truth that could either unite them against a common, cosmic enemy, or shatter their world completely. What is the true price of the Vow that binds a queen of death to her honor-bound ghost?