Every night, when the kids at Sonia Obata's new school go to sleep, they go to the Grand Dream. In this mysterious place, they can do whatever they want-play a game, write a song, or paint a masterpiece-without a single adult to bother them. It seems like a paradise. But when Sonia discovers something has tampered with her memories, she realizes there's a dark secret lurking deep within the Dream. She escapes the Dream's clutches and sets out to shut...