The Order of Immortals - Katie Wilson - Bog

Althea Thorne is college-bound and well on her way to discovering who she is without ever having needed the help of her biological parents.
But when there's an accident cause by her brother, Thea is healed by a mysterious man who knows more about her life and family than she would have ever imagined. Soon she is catapulted into literal realms of possibilities for her future-including the fact that she is an immortal princess who must use her newfound powers to save her mother and defeat an enemy hellbent on dethroning her father.