Dream Thief (The Secrets of Droon #17)

Eric is tossing and turning in his sleep! And his wild dream can only mean one thing - he is being called back to the land of Droon. But when Eric, Julie, and Neal step off the rainbow stairs, they find that something is very wrong in their magical world. Someone has been stealing people's dreams! And the kingdom of Droon is getting awfully tired of it. So now it's up to our friends to stop this dream thief, before he becomes a serious nightmare...