Dark Day in the Deep Sea
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  • Published: 3 August 2009
  • ISBN: 9780375837326
  • Imprint: RHUS Children's Books
  • Format: Paperback
  • Pages: 144
  • RRP: $14.99

Dark Day in the Deep Sea

Formats & editions
EBook
24 Jun 2008
Audiobook
25 Mar 2008
Paperback
3 Aug 2009
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The 39th Magic Tree House adventure, finding Jack and Annie on an magical, historical, and scientific underwater mission to discover the 3rd of the 4 secrets of happiness they need to save Merlin, is 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!

The magic tree house leads Jack and Annie to a tiny deserted island in the middle of the ocean. The brother and sister team are soon rescued by a ship of explorers and scientists who are looking for…a sea monster!

Formerly numbered as Magic Tree House #39, the title of this book is now Magic Tree House Merlin Mission #11: Dark Day in the Deep Sea.

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: 3 August 2009
  • ISBN: 9780375837326
  • Imprint: RHUS Children's Books
  • Format: Paperback
  • Pages: 144
  • RRP: $14.99
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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.

Also by Mary Pope Osborne

The Magic Tree House Library
Magic Tree House: Dinosaurs Before Dark
Magic Tree House 9: Diving with Dolphins
Revolutionary War on Wednesday
Magic Tree House 1: Valley of the Dinosaurs
Magic Tree House 2: Castle of Mystery
Magic Tree House 3: Secret of the Pyramid
See all