Track the facts about the unicorn of the sea—the narwhal—and its closest relatives!
When Jack and Annie came back from their adventure in Magic Tree House #33: Narwhal on a Sunny Night, they had lots of questions. What is a narwhal? Why is it nicknamed the unicorn of the sea? What other whales live in the arctic? How do they survive the cold? Find out the answers to these questions and more as Jack and Annie track the facts about...

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 #1: Dinosaurs Before Dark, they had lots of questions. When did the dinosaurs live? What other animals lived at that time? Which dinosaur...

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 #8: Midnight on the Moon, they had lots of questions. How did the universe begin? How long does it take to get to the moon?...

Provides readers with answers to questions regarding the diverse creatures who live in the oceans, with a review of some of the myths regarding sea monsters and the like.

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 #18: Dogs in the Dead of Night, they had lots of questions. How do St. Bernards help find avalanche survivors? Who are some of...

It's a book of magic tricks perfect for chapter book readers! When Jack and Annie went back in time to meet Houdini, they learned that the most famous magician of all time didn't use real magic at all. It was a trick! Now they've tracked down all the best, most fun, most tricky magic tricks and put them together in one book. With simple instructions, easy-to-follow diagrams, and tips from Jack and Annie,  Magic Tricks from the Tree House is...

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 #5: Afternoon on the Amazon, they had lots of questions. How much rain falls in a rain forest? What is the world's heaviest...

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 #17: Tonight on the Titanic, they had lots of questions. How many people were aboard the Titanic? Why weren’t there...

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 got back from their adventure in Magic Tree House #23: Twister on Tuesday, they had lots of questions. How do tornadoes form? What kinds of tools can help predict bad storms? Where did the biggest snowfall on record happen? How fast are hurricane winds?
Did you know that there’s...

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 #13: Vacation Under the Volcano, they had lots of questions. How did ancient Rome become an emipre? Where did ancient

...