Talented, clever and kind, Maddie was content living a seemingly normal life with her single mother, Roxana. That is, until Roxana became engaged. The charm of Luke Luna doesn't work on Maddie... or does it? Maddie's life continues to turn upside down as she starts developing heightened senses and supernatural abilities too complex to understand. She discovers that she hails from the past - learning she is the long lost daughter of a mundane, human princess and a Moon Blood, a member of an ancient race of demigods powered by the phases of the moon. Once allies to humanity, now hunted. As Maddie tries to navigate the world of Lunacy, she relies on her new "stepfamily", a powerful Moon Blooded coven composed of the charming Alexander, wise Renée, eccentric Ein, and the hot-headed Damian, facing the possibility that her and her new "step-siblings" may be the Moon Blooded's best chance of survival.