Cailean, along with her two best friends, Josh and Seamus, go on a quest to save the land near her home from a developer who's determined to turn it into a holiday and golfing resort. She has always believed the land belonged to her mother's family but discovers there isn't a deed on file. A mysterious cave and a riddle written on her great-grandfather's tombstone leads and her friends to a mystical world inhabited by faeries. To her shock and surprise, her father wants to give up the land which he promised her deceased mother he would never do. Working under a strict timeline to find the deed, Cailean refuses to give up despite opposition from family and evil faeries. With unexpected help from Pella, a rogue faery, a Newfoundland dog, and two Newfoundland ponies, she learns a secret about her heritage that even her father has no knowledge of. A heritage that shocks her to the very core and changes what she's always believed about herself and the world.