The final installment of the Kingdom Keepers series opens with Tia Dalma, the formidable voodoo-practicing witch, winding her way through the Devil's Labyrinth, a rat-infested underground chamber in which she has been imprisoned. She escapes, liberates the beast Chernabog, and transports him to Anaheim in hopes of destroying Disneyland and the "good magic" within it. The five teenagers who have been charged with protecting the park are ready for the pair and battle against them, as well as many other villains of familiar Disney films. The action in scenes occasionally falls flat, and readers accustomed to strong female protagonists may feel dismayed by the sometimes stereotypical depictions of girls. Nevertheless, descriptions of the antagonists are notably rich and evocative, and this will appeal to established fans of the series, who will welcome the conclusion enthusiastically and no doubt appreciate the unbridled adventure they have come to expect from this author.

In the final installment, just when the Kingdom Keepers (kids who can magically transport themselves to and around Disney worlds battling the evil that lurks there) thought their arch nemesis was gone for good, their senior year is rocked by the return of the Overtakers. Some fun lies in the book's play with Disney characters and setting; unfortunately the adventures themselves fall totally flat.