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   #9: Dolphins at Daybreak, they had lots of questions. Did dolphins ever   live on land? How do dolphins communicate? How do sharks hunt for food? Which   sharks are the most dangerous? Find out the answers to these questions and   more as Jack and Annie track the facts.
 Filled with up-to-date information, photos, illustrations, and fun tidbits   from Jack and Annie, the Magic Tree House Fact Trackers are the perfect way   for kids to find out more about the topics they discovered in their favorite   Magic Tree House adventures. And teachers can use Fact Trackers alongside   their Magic Tree House fiction companions to meet common core text pairing   needs.
 Did you know that there’s a Magic Tree House book for every kid?
 Magic Tree House: Adventures with Jack and Annie, perfect for readers who   are just beginning chapter books
 Merlin Missions: More challenging adventures for the experienced   reader
 Super Edition: A longer and more dangerous adventure
 Fact Trackers: Nonfiction companions to your favorite   Magic Tree House adventures
 Have more fun with Jack and Annie at MagicTreeHouse.com!