Allie Jo Jackson knows every nook and cranny of The Meriwether Hotel-she's lived there her whole life-and nothing surprises her, until she spots the enigmatic and beautiful Tara emerging from the springs. Tara's shimmery skin, long flowing hair, and strange penchant for late moonlit swims disguise a mysterious secret, and she needs Allie Jo and her friend Chase to help her keep it. One thing's for certain: this will be the most magical summer any of them has ever had.