Four witches, a beachfront condo, and spring break in Florida. I thought this vacation would be a relaxing holiday from work—that is, until my cousin Amelia washed up on the beach. The police say she drowned suspiciously, but I know there’s even more to the story. I can't trust the cops to solve the murder, not with shape-shifting fish around every corner and secrets churning beneath every pier. And that mermaid? What’s her deal? When one of the investigators looking into Amelia's death claims my sisters and I were with Amelia when she died, I have no choice but to jump in, protect my sisters, and piece together Amelia's mysterious life—and death. But I can’t help but wonder what else is hiding in these waters waiting to bite me in the rear.