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Magic Tree House: #37-40

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This four-story collection includes:

Dragon of the Red Dawn
Merlin the magician will not eat or sleep or speak to anyone in Camelot. What can be done? The enchantress Morgan knows who to ask for help: young Jack and Annie of Frog Creek, Pennsylvania!

Monday with a Mad Genius
They know they have to search for one of the four secrets of happiness to help Merlin the magician find joy in his life again. And so they head off in the magic tree house for Florence, Italy, in the early 1500s to spend the day with one of the greatest artists and inventors of all time–Leonardo da Vinci!

Dark Day in the Deep Sea
Jack and Annie have to find one of the four secrets of happiness to help save Merlin the magician. But when the magic tree house whisks them off to a misty island in the middle of nowhere, they wonder how they will find anything. As the fog lifts, they see a huge three-masted ship–could it be a pirate ship?

Eve of the Emperor Penguin
Jack and Annie continue their quest for the secrets of happiness–secrets they need to save Merlin. This time, the Magic Tree House takes them to 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!

4 pages, Audio CD

First published March 24, 2009

5 people are currently reading
250 people want to read

About the author

Mary Pope Osborne

538 books2,672 followers
Mary Pope Osborne is an American author of children's books and audiobook narrator. She is best known as the author of the Magic Tree House series, which as of 2017 sold more than 134 million copies worldwide. Both the series and Osborne have won awards, including for Osborne's charitable efforts at promoting children's literacy. One of four children, Osborne moved around in her childhood before attending the University of North Carolina. Following college, Osborne traveled before moving to New York City. She somewhat spontaneously began to write, and her first book was published in 1982. She went on to write a variety of other children's and young adult books before starting the Magic Tree House series in 1992. Osborne's sister Natalie Pope Boyce has written several compendium books to the Magic Tree House series, sometimes with Osborne's husband Will Osborne.

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5 stars
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75 (20%)
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53 (14%)
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Displaying 1 - 8 of 8 reviews
Profile Image for Chase the Fiction Fanatic.
323 reviews1 follower
December 9, 2021
Rating: 5 Stars

I loved these books as a kid and I decided I wanted to read them once again and see how they hold up. Jack & Annie go on more adventures helping others as Master Librarians. I like how these stories have grown with their audience and that the riddles and missions are more difficult than in the previous books. These books are always such a joy to read. So happy I decided to pick these up once again.


Happy Reading my Friends.
Profile Image for Nolan Brendel.
271 reviews
March 12, 2021
I liked it because Jack and Annie went on a crazy adventure and found a baby penguin and because my dad made the emperor penguin sound like a weirdo.
Profile Image for Abby Lockridge.
49 reviews
July 23, 2025
Maybe I’m a children’s book critic now. Read this to some kids while babysitting. THIS is a great children’s novel. Adventure, chivalry, history, science, logic, fun. Love live Jack and Annie ✊🏼
Profile Image for Theresa.
8,317 reviews135 followers
September 8, 2014
a collections of stories about two children transported across the world and time to learn about many parts of culture, history and animals
Profile Image for Aaron.
3 reviews
Read
March 20, 2014
I realy liked this book but if I've gotta name my favoured auther it is r.l.stine
Profile Image for Alberto Lopez.
367 reviews15 followers
July 16, 2016
My girls loved this adventure series in audiobook. And what could be better than fun for the whole family while commuting to uneventful places?
Displaying 1 - 8 of 8 reviews

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