Enter Elly Moss, The quirky 16-year old with hopes that something special will happen when she finds herself cooped up in a car on the way from her comfy New York high-rise to the beach manor in Cape Cod. While shopping at a mysterious book store and stumbling over a book that 'calls to her', she finds a mystical spell that could make her vacation a little more sweeter. Soon enough, Elly is singing under the mooon, growing scales and even finding herself a handsome merman himself. But when her hometown love is found missing, she has no choice but to risk her legs for his life.

All Holly wanted was to be able to speak up. Something changes when she meets a special someone...and it changes her too.