Siblings Jack and Annie live in Frog Creek, Pennsylvania. One day, a tree house filled with books appears in their backyard. The tree house has the magical power of bringing the children to the places featured in the books if they point to a picture in a book and make a wish. No matter how long Jack and Annie are gone on their adventures, no time at all passes in Frog Creek while they are away. The children discover that the tree house belongs to an enchantress named Morgan Le Fay. She lives in Camelot, “the long-ago kingdom of King Arthur” (1). Jack and Annie go on many adventures, including a journey to the magical realm of Camelot. There, they visit Morgan Le Fay’s library and give King Arthur hope and courage. However, there’s been no sign of the enchantress or her magic tree house for several months by the time this story begins.

On a snowy afternoon, Jack and Annie walk home from school together at the start of their Christmas vacation. Annie spots a white dove watching them and says that the bird has a message for them from