Mary Pope Osborne

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 came back from their adventure in Magic Tree House #14: Day of the Dragon King, they had lots of questions. Who was the Dragon King? How did he build the Great Wall? What is Chinese...

Track the facts about baseball—with Jack and Annie!
 
When Jack and Annie came back from their adventure in Magic Tree House #29: A Big Day for Baseball, they had lots of questions. When was baseball invented? What are the rules? Who was Jackie Robinson? Who are some other baseball greats? Find out the answers to these questions and more as Jack and Annie track the facts about America’s national pastime.
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Annie and Jack present information about ancient Greece and the athletic events known as the Olympic games that were held there.

In this version of the classic tale, a girl climbs to the top of a giant beanstalk, where she uses her quick wit to outsmart a giant and make her and her mother's fortune.

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 #2: The Knight at Dawn, they had lots of questions. How were castles built? What was it like to live inside a castle? How...

The magic tree house transports Jack and Annie on a mission to the Ice Age where they encounter Cro-Magnons, cave bears, sabertooth tigers, and woolly mammoths.

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 came back from their adventure in Magic Tree House Merlin Mission #25: Shadow of the Shark, they had lots of questions. How many teeth do sharks have? What is their favorite food? What...

Their magic tree house takes Jack and Annie deep into the sea, where they meet up with dolphins, sharks, and octopi as they search for the answer to an ancient riddle.

Feeling abandoned by her deceased Arapaho mother and her explorer father, Adaline Falling Star runs away from the prejudiced cousins with whom she is staying and comes close to death in the wilderness, with only a mongrel dog for company.