Track the facts about the famous sled dog race and other incredible feats-with Jack and Annie!

The #1 bestselling chapter book series of all time celebrates 25 years with new covers and a new, easy-to-use numbering system!

When
Jack and Annie came back from their adventure in Magic Tree House Merlin Mission #26- Balto of the Blue Dawn, they
had lots of questions. How do sled dogs race for so long? When was the first
Iditarod? What are some other extreme sports? Find out the answers to these
questions and more as Jack and Annie track the facts about the Iditarod, open
water swimming, the Ironman triathlon, free climbing, the X Games, and other
ways people test their limits.

Filled with up-to-date information, photographs, 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 discover in their
favorite Magic Tree House adventures. And teachers can use the 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!