The Kingdom of Rattlesnake Mountain — Karel Hayes

The exhilarating second book in acclaimed children's author Karel Hayes' Lake Kanakonda trilogy. Spring has come again to Lake Kanakondah, but it is not a peaceful spring. A menacing presence has invaded the deep dark waters of the bottomless lake. Caught in a mystery that began a long time ago in Peru, Alex, Maizy, and Harvey must right a wrong to save their lake. When Harvey disappears, Alex and Maizy find themselves fighting a dangerous force that plummets them spinning into an upside down world with no way home. With every step they take, the ancient mystery grows dangerously unsolvable, until Alex and Maizy are left wondering if they can right the wrong, find Harvey, and save Lake Kanakondah -- and most important: find their way home?