What happens when the biggest threat to your family is You? For sixteen-year-old Selena and her family, this was to be the best summer vacation ever. After all, the Mediterranean is the birthplace of their entire mythological line. Instead, it is turning into the worst. Not only do they face unforeseen dangers and murderous foes around every corner, but now they must confront their most treacherous opponent yet: Her! In short, what happens when a teen Siren becomes more powerful than the gods? Sadly, only the gods know.