Forget Ariel, these mermaids are proud, fierce and powerful in this exciting middle-grade adventure from the author of Guardians of the Wild Unicorns "One of the swimmers plunged underwater with a flick of his long, dolphin-like tail. The other followed, sending an arc of spray shooting upwards, tail slapping against the choppy waves." In a small coastal town, Finn is enduring a winter vacation with his annoying new...