Set One: The Mystery Of The Tree House
In the first four Magic Tree House books, Jack and Annie must figure out who is the owner of the tree house? Each book contains one clue to help them figure it out.
Set Two: The Mystery Of The Magic Spell
In Night of the Ninjas, Jack and Annie find a mysterious note from Morgan le Fay. It says, “Help me – Under a spell – Find 4 things”. In each book, Jack and Annie are given something to help them rescue the librarian.
Set Three: The Mystery of The Ancient Riddles
In this set, Jack and Annie need to solve four riddles in order to become master librarians. Being master librarians will allow them to gather books for le Fay’s library.
Set Four: The Mystery Of The Lost Libraries
For their first mission as master librarians, Jack and Annie must to back in time and save books from libraries that were lost in history.
Set Five: The Mystery Of The Enchanted Dog
Jack and Annie are visited by a dog with a note. The note explains that he is under a spell and to free him, the siblings must find four special things. In each book, Jack and Annie must find a gift to release the dog from the spell.
Set Six: The Mystery Of Morgan’s Library
In this set, Jack and Annie must help save Camelot by finding four special types of writing: “Something to follow, Something to send, Something to learn, Something to lend”. In each book, the brother and sister must find the special writings.
Set Seven: The Mystery Of Morgan’s Rhymes
Jack and Annie must find four special kinds of magic. At the beginning of each adventure, they are given a rhyme that will help them find the special magic.
Set Eight: The Merlin Missions
In this set of books, Jack and Annie go on fantastical adventures with the help of their guide, Merlin the magician and a young magician named Teddy.