Kingdom Keepers III: Disney in Shadow

When Disney Imagineers installed hologram guides for the Magic Kingdom using teenage models, they had no idea the technology might backfire. But backfire it did: some nights when the kids go to sleep, they wake up in one of the Disney parks as a hologram.
With the adventures in the first books now resolved, Kingdom Keepers III: Disney in Shadow follows the five teens-Finn, Philby, Willa, Charlene, and Maybeck-as they search to find Wayne, their mentor and head Imagineer, who has mysteriously gone missing. Concerned that Wayne has been abducted by the Overtakers-Disney villains, who along with other Disney characters, take over the parks when the turnstiles stop spinning and who want desperately to steer the parks to a far darker place-the five kids pick up a major
clue from their close friend whose dreams (nightmares, really) often accurately predict the future.
Clues from a dream lead the kids into Disney's Hollywood Studios and Epcot. Each clue seems tied to the last, and with the stakes growing ever higher, what starts out as a puzzle ends up as a fight for survival. A transparent paper box, a quest for a sword, rides on Soarin' and Maelstrom, life-and-death encounters with a giant snake and a devious Maleficent lead the Kingdom Keepers not only to begin to decipher deeper meanings to the clues but to discover new truths about themselves and their ever-growing friendships.