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  • Published: 1 June 2010
  • ISBN: 9780375837340
  • Imprint: RHUS Children's Books
  • Format: Paperback
  • Pages: 144
  • RRP: $12.99

Eve of the Emperor Penguin




The 40th Magic Tree House adventure finds Jack and Annie on an magical, historical, and scientific adventure in Antarctica to discover the final secret of happiness they need to save Merlin! Now available in paperback!

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

  • Published: 1 June 2010
  • ISBN: 9780375837340
  • Imprint: RHUS Children's Books
  • Format: Paperback
  • Pages: 144
  • RRP: $12.99

About the author

Mary Pope Osborne

Mary Pope Osborne is the author of over forty books for young people, including novels, picture books, biographies, mysteries, and retellings of fairy tales and myths. She was the president of the Author's Guild, the leading organization for professional writers in the US, for two years and has won many awards for her books. She lives in New York City with her husband, Will, and their dog, Bailey, who sleeps on top of Mary's desk every day while she writes.

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