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

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 #12: Eve of the Emperor Penguin, they had lots of questions. What do penguins eat? Why do they huddle together in groups? Who won the race to the South Pole? What happens at a research station in Antarctica? Find out the answers to these questions and more as Jack and Annie track the facts. Filled with up-to-date information, photos, 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 discovered in their favorite Magic Tree House adventures. And teachers can use 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!

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

Beginning readers can chill out with one of the coolest creatures around—the emperor penguin. Did you know that penguins can't fly? Or that emperor penguins can stay underwater for almost twenty minutes? Learn more about penguin work and playtime in this cool All Aboard Science Reader!

Whats the difference between a King and an Emperor Penguin? Are all penguins snowbound? Did you know that all penguins are naturally from the southern half of the world? This book contains answers to these questions and other fun facts along with full color photographs of all 17 species of penguins (and some of their predators). Meet the penguins of the world and learn how you can help save their habitat from destruction.

Describes the physical characteristics, habitat, life cycle, and behaviour of emperor penguins as well as threats they face and what can be done to help them.

Read the adventure and track the facts—it's two great ebooks in one! Join Jack and Annie as they travel to ancient Greece to meet Alexander the Great and his famous horse in Magic Tree House® #49: Stallion by Starlight. Then uncover the facts behind the fiction in Magic Tree House® Fact Tracker: Horse Heroes. It’s two favorite ebooks in one! Find out why Mary Pope Osborne’s #1 New York Times bestselling series is such a hit with kids, parents, and teachers around the world.