The stories that center on Jack, Jill, and the Moors continue to be some of the strongest installments in this series. In this one, Jack reappears at the school for Wayward Children- in her twin sister's body. She needs help, and she needs it fast, and despite the sign outside the school which reads "No Quests", a group of Eleanor West's students once again step through a magical door to save a world not their own.