In this latest in the Starfell series, a young witch with the power to find lost things seeks a vanished city.Twelve-year-old Willow arrives at her new school on a flying broomstick with her best friend Oswin, a catlike monster, in tow. Willow wonders why her parents think it's safe to send her to a school controlled by Silas, a wizard intent on stealing everyone's magic. Her fears are confirmed when an elf named Twist blows into the school, warning Willow that Silas has stolen an ancient elvish scroll with clues about what happened to a vanished elvish kingdom and a powerful staff that can bestow and take away the gift of magic. To prevent Silas from gaining the staff, Willow and Twist embark on a perilous quest to find the lost kingdom. Aided by impressive dragons and truly terrifying trolls, Willow must confront Silas in a gripping battle of magical powers. Throughout Willow remains a relatable heroine, sidekick Oswin adds a comic note, and the cast of witches, wizards, elves, trolls, and dragons engage and entertain. Introductory backstory allows readers new to the Starfell saga to readily follow Willow's latest adventure. The finale suggests all is not over yet. Willow and the rest of the human cast default to White.A fascinating entry in an ongoing fantasy series. (Fantasy. 8-12)