The Kingdom Keepers
Ridley Pearson

This book is very creative and imaginative. It is set in the Magic Kingdom of Disney World. 5 local kids are picked to be these hologram guides for the parks, but also serve as heros. They can enter the park in their sleep after the park closes and have to solve the riddle that will overthrow the bad characters( Maleficent).

I really dont have much else to say about it without repeating myself. Just read it and see what I am talking about.