Zuli is extraordinary--she just doesn't realize it yet. Raised by mystical bird spirits in the branches of the Great Tree, she's never ventured beyond this safe haven. But when a sinister force threatens the life-giving magic of the tree, Zuli, along with her guardian owl, Frowly, must get to the root of it. So begins an adventure bigger than anything Zuli could've ever imagined--one that will bring her, along with some newfound friends, face-to-face...