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

The Ice Age is very coolfor two kids in bathing suits! Jack and Annie nearly freeze when the Magic Tree House whisks them back to the time of cave people and woolly mammoths. But nothing can stop them from having another wild adventurenot even a saber-toothed tiger!

Did you know that theres 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