When Meggy wakes up, she rubs the sleep from her eyes and gets out of bed. Startled, she immediately sits back down. She sees her chair, the horse posters, and all her other things upside down! Meggy crawls back under her duvet and squeezes her eyes shut. But when she gets up again a little later, everything is still upside down... That will be the beginning of an exciting adventure, which first takes Meggy to a doctor with a strange name. But that is just the beginning. Meggy ends up in a miraculous world where not only her room, but her whole life and even time are turned upside down...