Eve of the Emperor Penguin

The #1 bestselling chapter book series of all time celebrates 25 years with new covers and a new, easy-to-use numbering system 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 Formerly numbered as Magic Tree House #40, the title of this book is now Magic Tree House Merlin Mission #12: Eve of the Emperor Penguin. 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