The #1 bestselling chapter book series of all time celebrates 25 years with new covers and a new, easy-to-use numbering system! Getting the facts behind the fiction has never looked better. Track the facts with Jack and Annie!!
When Jack and Annie got back from their adventure in Magic Tree House Merlin Mission #20: A Perfect Time for Pandas they had lots of questions. What do pandas eat? Where do they live? Why are snow leopards so scarce?...

The magic tree house takes Jack and his sister Annie to the Great Plains, where they learn about the life of the Lakota Indians.

Eight-year-old Jack and his younger sister Annie use the magic treehouse to travel back to the Middle Ages, where they explore a castle and are helped by a mysterious knight.

The magic tree house carries Jack and Annie to New York City in 1938 on a mission to rescue the last unicorn.

Magic tree house series, #4. The magic tree house whisks Jack and Annie back to the days of deserted islands, secret maps, hidden gold, and nasty pirates.

Having used their magic tree house to travel to India, where they must get a gift to help free the dog Teddy from a spell, Jack and Annie have adventures involving a tiger and other endangered jungle animals.

Jack and Annie travel to a monastery in the Swiss Alps where, with the help of St. Bernard dogs and magic, they seek the second of four special objects necessary to break the spell on the wizard Merlin's beloved penguin, Penny.

While on a mission to prove to Merlin that they can use magic wisely, Jack and Annie travel to seventeenth-century Venice, Italy, to save the city from disaster. Merlin has asked Jack and Annie to help on another Merlin Mission. This time they head back into history to Venice, Italy, in the 1700s. With the help of some new friends, a research book, and a mysterious rhyme from Merlin, the heroes will save the beautiful city from a flood! Yet another...