Months after their escape from Endora's mansion, Fable Nuthatch and her friends are recovering at Tulip Manor. With Fedilmid and Aunt Moira's protection spells keeping them safe, the children have settled into a routine life of studying, chores, and practicing magic.

When new messages begin to appear in Fable's book, and a strange light in the forest rouses their dog's curiosity, the children's lives are spun back into mayhem. A trip to the magical city of Mistford leads them on a wild chase after a rogue star, a missing astronomer, and an enchanted guitar that could change the children's lives forever.

With Endora hot on their trail, can Fable and her friends discover the truth before it's too late?