Rebecca Gentry, Becca, has grown up on her beloved grandmother's stories. The tales of castles, evil Lords, witches, and beings of magical realms have fascinated and mystified Becca. Some stories her grandmother made up, but others were handed down through the generations of her family.

When Becca's grandmother dies a week before her sixteenth birthday, leaving her and her father a large amount of money and a castle in Scotland, things begin to change for Becca. She discovers her grandmother's estate, Castle Fordottar, has a long and dark history. Becca soon realizes her grandmother's stories may not be mere fairy tales, after all.