Jack and Annie found a tree house in woods, and it was filled with books. When they pointed to a picture of books and made a wish, it took them there. But still they didn't know who it belonged to.
On a rainy and windy day, they saw on a book a sunny beach, a parrot sitting in a palm, and a ship sailing on a blue sea. They wished to be there. After getting there with a parrot Polly, they read the title of the book, Pirates of Caribbean.
Three pirates, Cap'n Bones and two fellows, reached a beach on the rowboat from a big ship and caught Jack and Annie. The pirates had a treasure map but they couldn't read. Though Jack and Annie had read the map of Kidd's treasure, they didn't know what it meant with strange marks on it. Till they was ready to tell the pirates how to find treasure, they was locked in ship's cabin.
Soon Jack found Captain Kidd's treasure somewhere on the island from their book. They told Cap'n Bones, and five of them came back to the island.
All of them got to the place, and pulled a big rock, then the pirates dug below there. At that time, wind blew even harder and there was going to be a thunderstorm.
Also Polly appeared circling above them with a warning, "go back!".
Cap'n Bones threw the Jack's gold M medallion into the hole so that two pirates keep going digging.
But the two pirates gave up and ran toward the rowboat, and it went into the sea. At last
Cap'n Bones had to follow the others.
Just then as big, fat raindrops were falling into the hole, Jack saw the rain clear more sand and found the treasure. Though Annie and Polly cried to him that he would have to come back, he couldn't tear himself away. Polly said to him again and sounded like a person. Finally he just clutched the gold medallion and took off, running toward the tree house to follow Annie.
After they came back to the tree house in Frog Creek Pennsylvania, there was an old woman, Morgan le Fay, in place of Polly. She was King Arthur's sister, an enchantress and also a librarian. She was traveling in the tree house to collect words around the world. The tree house belonged to her and therefore M was her!
The tree house was invisible, so no one else had ever seen it before. But somehow they hooked right into the magic. Because Annie believed in magic, her belief helped Jack to see it. When they started to take off for frist adventure, Morgan dismayed and she had decided to come along as the pteranodon, the cat, the knight, and Polly.