Jack and Annie arrive on the one continent they haven't visited before: Antarctica! What can they hope to learn about happiness in such a barren place? Only the penguins know for sure...Jack and Annie are about to find out!

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