She doesn't really know who she is or what she wants... Corinna is a Folk Keeper. Her job is to keep the mysterious Folk who live beneath the ground at bay. But Corinna has a secret that even she doesn't fully comprehend, until she agrees to serve as Folk Keeper at Marblehaugh Park, a wealthy family's seaside manor. There her hidden powers burst into full force, and Corinna's life changes forever...
This "Boston Globe/Horn Book" fiction award winner tells the story of Corinna, who disguises herself as a boy to work as a folk keeper, one who keeps the fairy folk who live underground at bay. When she is hired to work at the seaside manor of a wealthy family, Corinna comes to believe she has special powers.