Sadie is an adventurous eight-year-old who spends the summers with her grandparents. But when her adventurous nature leads her into the realm of fairies and magic, she finds herself running for her life from the dark king himself. Daghan, the fairy queen's mightiest warrior, has been assigned the task of getting Sadie and her grandmother back to the human world safely. With the dark king hot on their trail, Daghan finds himself needing help from three surprising allies: elves. Ride with the troop as they fight their way to the top of Mystic Mountain, battling undead creatures and the different fae that inhabit their realm.