"The Sleeping Heir" follows a shepherd's son in uncovering the mysteries surrounding an ancient castle near his village. While trying to verify the myth of a fallen princess, believed to be asleep within the castle walls for centuries, Jonathan Fier also heard stories of a stranger scaring visitors away from the castle, thus he needed to investigate for himself. But, nothing could prepare him for an encounter with a half-vampire girl who may, or may not, be tied to either the myth of the fallen princess or the menacing stranger.