When Jessie goes to visit her grandmother at beautiful Blue Moon, things seem wrong. Why is her grandmother so forgetful? And what's happened to the charm bracelet she always wears?
One night, Jessie discovers an amazing secret. The secret garden at Blue Moon leads to a magical Realm. In this land live all kinds of magical beings, from fairy queens to miniature talking horses.
But the enemies of the Realm are getting closer and closer to coming through the wall that keeps them out. Jessie must find out her grandmother's secret and help renew the Realm's magic before it's too late.