“How can my mate be my worst enemy?” For centuries, the kingdoms of Lycanor and Vespera have been sworn enemies. Their people have buried countless sons and daughters beneath the weight of a war no one remembers how it truly began. When the Council of Eryndor orders the two young kings to work together for the sake of peace, neither expects anything more than endless arguments and reluctant cooperation. But fate has its own plans. As an impossible mate bond forms between the Lycan King and the Vampire King, their growing affection threatens to shatter centuries of tradition. While they struggle to choose love over duty, a hidden enemy begins moving in the shadows, determined to ensure that the kingdoms remain divided forever. When one king disappears , the fragile peace begins to crumble. A year later, he returns alive but broken, haunted, and convinced that the one person who never stopped searching for him is his greatest enemy. Now, to save their kingdoms, they must uncover a truth buried for centuries before Eryndor falls into another age of bloodshed.