Mary Pope Osborne
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Magic tree house volume 30
Description
In their magic treehouse, Jack and Annie are again transported to King Arthur's realm, where invisible beings, giant ravens, and mistaken magic spells have a duke's castle in an uproar on Halloween night.
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Magic tree house volume 32
Description
Jack and Annie are joined by Teddy and Kathleen as they travel to the snowy Land-Behind-the-Clouds, where they search for the eye of the Ice Wizard and attempt to help Merlin and Morgan.
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Magic tree house volume 31
Description
Jack and Annie travel in their magic tree house to the land of the mystical selkies to seek a magical sword for Merlin.
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Magic tree house volume 36
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The magic tree house carries Jack and Annie to 1938 New York City on a mission to rescue the last unicorn.
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Magic tree house volume 15
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Their magic tree house takes Jack and Annie back to a monastery in medieval Ireland, where they try to retrieve a lost book while being menaced by Viking raiders.
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Magic tree house volume 41
Description
Jack and Annie travel to Vienna, Austria, in 1762 where they meet the young Wolfgang Amadeus Mozart and his sister and help save the budding genius' life.
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Magic tree house volume 42
Description
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."
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The Magic tree house volume 4
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The magic treehouse whisks Jack and Annie back to the days of deserted islands, secret maps, hidden gold, and nasty pirates.
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Magic tree house volume 20
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The magic tree house whisks Jack and Annie away to Australia where they must save some animals from a wildfire.
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Magic tree house volume 34
Description
Guided by a magic rhyme, Jack and Annie travel to ancient Baghdad on a mission to help the Caliph disseminate wisdom to the world.
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Magic tree house volume 35
Description
Jack and Annie visit the Paris World's Fair of 1889 in an effort to protect four scientific pioneers from an evil sorcerer.
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Magic tree house volume 14
Description
The magic treehouse takes Jack and Annie back two thousand years to ancient China where they must find the original copy of an old legend before the Imperial Library is burned down by the evil Dragon King.
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Magic treehouse volume 39
Description
When eight-year-old Jack and his seven-year-old sister, Annie, join a group of nineteenth-century explorers aboard the H.M.S. Challenger, they learn about the ocean, solve the mystery of its fabled sea monster, and gain compassion for their fellow creatures.
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Magic tree house volume 51
Description
Jack and Annie travel back in time to Egypt and meet Florence Nightingale, who is on the trip that will influence her life and the decisions that will make her famous.