Most Popular Books by Mary Pope Osborne

The #1 bestselling chapter book series of all time celebrates 25 years with new covers and a new, easy-to-use numbering system! "Beware of Vikings!" warns Morgan. Then Jack and Annie are whisked back to ancient Ireland. They land on a cliff on a misty island. How will they find the story they are looking for? It will take a Viking invasion, the help of a jolly monk, and a lot of courage for Jack and Annie to succeed in Viking Ships at Sunrise. 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

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.

Magic. Mystery. Time-travel. Get whisked away to the Ice Age on a frozen adventure with brother-and-sister team Jack and Annie in the #1 bestselling chapter book series, now available as graphic novels! The Ice Age is super cool…for two kids in bathing suits! Jack and Annie nearly freeze when the magic tree house whisks them back to the time of cave bears, early humans, and woolly mammoths. But nothing can stop them from having another wild adventure—not even a sabertooth! For the first time in graphic novel--live the adventure again with new full-color vibrant art that brings the magic to life!

Eight-year-old Jack and his little sister, Annie, are playing in the woods during their summer holiday, when they find a mysterious tree house full of books. But these are no ordinary books . . . And this is no ordinary tree house . . . When they''re whisked away to ancient Egypt in the tree house, Jack and Annie learn how to read hieroglyphics with the help the ghostly Queen of the Nile. But secret codes aren''t the only puzzle they have to solve. How do they get out of the pyramid full of mummies? And there''s still the problem of who all these magical books belong to. Who is this mysterious M?

Magic. Mystery. Time-travel. Join Jack, Annie and the Magic Tree House in this historical holiday story that puts a twist on Charles Dicken''s classic The Christmas Carol--from the #1 bestselling chapter book series of all time! Jack and Annie must help the famous writer Charles Dickens! The brother and sister are whisked back in time to Victorian England and the foggy streets of London. There, Jack and Annie discover that Charles Dickens has been thrown in jail! How can they help him? They will need all their magic-and help from three ghosts-to keep the great writer from ruining his life! Formerly numbered as Magic Tree House #44, the title of this book is now Magic Tree House Merlin Mission #16: A Ghost Tale for Christmas Time. The Merlin Missions books are more challenging adventures that will delight experienced readers who are fans of the original chapter book series! The Magic Tree House series has been a favorite for over 25 years and is sure to inspire a love of reading—and adventure—in every child who joins Jack and Annie! 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 • Magic Tree House Graphic Novels: Jack and Annie''s original adventures come to life with full-color, vibrant art, perfect for graphic novel fans and reluctant readers • 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

Read the adventure and track the facts—it''s two great ebooks in one! Join Jack and Annie as they travel to ancient Greece to meet Alexander the Great and his famous horse in Magic Tree House® #49: Stallion by Starlight. Then uncover the facts behind the fiction in Magic Tree House® Fact Tracker: Horse Heroes. It’s two favorite ebooks in one! Find out why Mary Pope Osborne’s #1 New York Times bestselling series is such a hit with kids, parents, and teachers around the world.

The #1 bestselling Magic Tree House series is ready to whisk you away across the world with Jack and Annie--this time as World Turtle Experts in the Galapagos Islands! It''s just a regular day when ordinary kids Jack and Annie are whisked away in the magic tree house to the Galapagos islands, where they must save a giant tortoise from an erupting volcano! But what do Jack and Annie know about saving turtles?! Plenty, thanks to some magic that makes them experts. A helicopter ride, rushing lava, and a whole lot of determination make this one adventure Jack and Annie will never forget! Did you know that there''s a Magic Tree House book for every kid? Magic Tree House: Perfect for readers who are just beginning chapter books Merlin Missions: More challenging adventures for the experienced reader Fact Trackers: Nonfiction companions to your favorite Magic Tree House adventures Graphic Novels: Relive the original adventures brought to life with art by Kelly & Nichole Matthews If you''re looking for Merlin Mission #38: Monday with a Mad Genius, it was renumbered as Merlin Mission #10 when the series was rebranded in 2017.

The #1 bestselling chapter book series of all time celebrates 25 years with new covers and a new, easy-to-use numbering system! Getting the facts behind the fiction has never looked better. Track the facts with Jack and Annie!! When Jack and Annie got back from their adventure in Magic Tree House Merlin Mission #10: Monday with a Mad Genius, they had lots of questions. Why was Leonardo da Vinci interested in flight? What are some of his most famous painting? Did he really keep noteboooks just like Jack? What do scientists today think of his ideas? Find out the answers to these questions and more as Jack and Annie track the facts. Filled with up-to-date information, photos, illustrations, and fun tidbits from Jack and Annie, the Magic Tree House Fact Trackers are the perfect way for kids to find out more about the topics they discovered in their favorite Magic Tree House adventures. And teachers can use Fact Trackers alongside their Magic Tree House fiction companions to meet common core text pairing needs. 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 Have more fun with Jack and Annie at MagicTreeHouse.com!

The #1 bestselling chapter book series of all time celebrates 25 years with new covers and a new, easy-to-use numbering system! Getting the facts behind the fiction has never looked better. Track the facts with Jack and Annie!! When Jack and Annie got back from their adventure in Magic Tree House #7: Sunset of the Sabertooth, they had lots of questions. What was it like to live in the Ice Age? How did early humans stay warm enough to survive? Who made the first cave paintings? What happened to saber-toothed cats and woolly mammoths? Find out the answers to these questions and more as Jack and Annie track the facts. Filled with up-to-date information, photos, illustrations, and fun tidbits from Jack and Annie, the Magic Tree House Fact Trackers are the perfect way for kids to find out more about the topics they discovered in their favorite Magic Tree House adventures. And teachers can use Fact Trackers alongside their Magic Tree House fiction companions to meet common core text pairing needs. 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 Have more fun with Jack and Annie at MagicTreeHouse.com!

Track the facts about snow leopards and other amazing wild cats in this nonfiction companion to the bestselling Magic Tree House series! When Jack and Annie came back from their adventure in Magic Tree House #36: Sunlight on the Snow Leopard, they had lots of questions. Where do snow leopards live? Why are they endangered? Which wild cat has the longest fangs? How do lions hunt? Find out the answers to these questions and more as Jack and Annie track the facts about snow leopards and wild cats from all over the world. Filled with up-to-date information, photographs, illustrations, and fun tidbits from Jack and Annie, the Fact Trackers are the perfect way for kids to find out more about the topics they discover in their favorite Magic Tree House adventures. 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 Fact Trackers: Nonfiction companions to your favorite Magic Tree House adventures

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 the facts about the Iditarod, open water swimming, the Ironman triathlon, free climbing, the X Games, and other ways people test their limits. Filled with up-to-date information, photographs, illustrations, and fun tidbits from Jack and Annie, the Magic Tree House Fact Trackers are the perfect way for kids to find out more about the topics they discover in their favorite Magic Tree House adventures. And teachers can use the Fact Trackers alongside their Magic Tree House fiction companions to meet Common Core text pairing needs. 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 Have more fun with Jack and Annie at MagicTreeHouse.com!

After returning from the Land of the Dead, Odysseus and his men are warned that the rest of his journey will remain challenging as they will have to face a deadly six-headed monster and a fierce whirlpool before finally reaching port.

The magic tree house takes Jack and Annie to San Francisco in 1906, in time for them to experience one of the biggest earthquakes the United States had ever known.

Jack and Annie are whisked down under to the land of Australia, where they save a baby kangaroo, a koala, and other animals from a raging wildfire.

In these books based on episodes from Homer''s Odyssey, Mary Pope Osborne brings to life the exciting adventures of one of the greatest heroes of all time. Now in paperback!