Fourteen-year-old Phoebe Quinn is surrounded by magic, but she can't muster any of her own. Her sister is a fairy keeper. Her best friends are merfolk. And all she does is dishes and housework.
When Phoebe finds out a terrible sea creature is awakening that preys upon the peace-loving merfolk, she becomes determined to help them, even though it means risking her life deep in the ocean. Beneath the waves, Phoebe learns she's more like her...