Mary Pope Osborne

As a thank-you from Merlin and Morgan, Jack and Annie are sent on what should be a vacation at a luxurious resort in Cozumel, Mexico, but is, by mistake, an adventure with ancient Mayans, instead.

"When the magic tree house whisks Jack and Annie back in time, they land in the tallest tree in Yosemite, California where they join nature conservationist, John Muir, and US President Teddy Roosevelt on a historic trip through the woods."--

The whole family joins in a lively small-town celebration of Independence Day, including a parade, a picnic, music, and fireworks. An author's note explains the origin of the celebration of July 4th.

Jack and Annie continue to try helping Merlin the magician by searching for the secrets of happiness, and their magic tree house takes them to Antarctica, a wasteland where the penguins may know what to do.

Jack and Annie must travel back in time to New Orleans in 1915 to help a teenaged Louis Armstrong fulfill his destiny and become the ""King of Jazz.""

A collection of well-known tales from medieval Europe, including "Beowulf," "Sir Gawain and the Green Knight," "The Song of Roland," and the story of Finn MacCoul.

Join Jack and Annie on two Magic Tree House adventures from the imaginative mind of Mary Pope Osbourne.
#44: A Ghost Tale for Christmas Time: The magic tree house whisks Jack and Annie back in time to the foggy streets of Victorian London, where they must help Charles Dickens. But the famous author has everything he could possibly want. How are they supposed to help him? It's not until Mr. Dickens rescues them from being thrown in...

This ebook collection includes Night of the Ninjas (#5), Afternoon on the Amazon (#6), Sunset of the Sabertooth (#7), and Midnight on the Moon (#8).
In these adventures, Jack and Annie’s friend Morgan le Fay is in trouble! They must find four “M” things to free her from a spell. Their adventures take them to meet a ninja master in ancient Japan, flee a crocodile on the Amazon River, discover the

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The #1 bestselling chapter book series of all time celebrates 25 years with new covers and a new, easy-to-use numbering system!
When Jack and Annie came back from their adventure in Magic Tree House Merlin Mission #26: Balto of the Blue Dawn, they had lots of questions. How do sled dogs race for so long? When was the first Iditarod? What are some other extreme sports? Find out the answers to these questions and more as Jack and Annie track...

Dolphins at daybreak: Their magic tree house takes Jack and Annie deep into the sea, where they meet up with dolphins, sharks, and octopi as they search for the answer to an ancient riddle. Ghost town at sundown: Their magic tree house takes Jack and Annie back to the Wild West, where they experience excitement and danger and try to solve a riddle. Lions at lunchtime: The magic tree house takes Jack and Annie to Africa where they meet up with wonderful...