But Gemma's father and sister are worried about her; several teenagers in town have gone missing and swimming alone at night seems very dangerous.
And there are three mysterious girls visiting town who are extremely interested in Gemma. They, too, can be found down at the harbor. Penn, Lexi, and Thea are gorgeous, almost too pretty, and definitely not your average teenage girls. What do they want with Gemma? And do they have any connection to the missing teenagers?
I don't want to give the story away, but if you are interested in mermaids, sirens from mythology, and just a good read that will keep you interested throughout the story, read this book. There's some romance, too, along with the mystery.