15-year-old Corinth was just trying to clean up the beach; she never expected to meet a mermaid, let alone be nearly drowned by one. But a storm is brewing—both at sea, and in Corinth’s increasingly dangerous relationship with her obsessively jealous boyfriend—and a magical bargain may be the only thing that can save her . . . at a tremendous cost.
After Skylla, the deadly fanged mermaid, mysteriously lets Corinth live, they grow closer through a cautious exchange of stories, gifts, jokes, and sign language. Bewitched by Corinth and their growing bond, Skylla learns about all the best things in life on land: books, burgers, donuts . . . and this strange, chattering human sound called laughter.