The #1 bestselling chapter book series of all time celebrates 25 years with new covers and a new, easy-to-use numbering system! Jack and Annie head to 18th-century Austria, where they must find and help a musician by the name of Mozart. Decked out in the craziest outfits they’ve ever worn—including a wig for Jack and a giant hoopskirt for Annie!—the two siblings search an entire palace to no avail. Their hunt is further hampered by the appearance of a mischievous little boy who is determined to follow them everywhere. But when the boy lets the animals out of the palace zoo, Jack and Annie have to use the only magic at their disposal to save themselves and the naughty little fellow. Formerly numbered as Magic Tree House #41, the title of this book is now Magic Tree House Merlin Mission #13: Moonlight on the Magic Flute. 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! Jack and Annie arrive on 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! Formerly numbered as Magic Tree House #40, the title of this book is now Magic Tree House Merlin Mission #12: Eve of the Emperor Penguin. 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! Jack and Annie are on a mission to find—and inspire—a musician that brings happiness to millions of people. After traveling to New Orleans, Jack and Annie come head to head with some real ghosts, and discover the world of jazz when they meet a young Louis Armstrong. Formerly numbered as Magic Tree House #42, the title of this book is now Magic Tree House Merlin Mission #14: A Good Night for Ghosts. 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! Who wants to vacation next to a volcano? Jack and Annie are about to find out when the Magic Tree House whisks them back to the days of the Roman Empire. They arrive in Pompeii and soon discover that it is the very day the city will be destroyed. Now Jack and Annie must race against time to find an ancient library before it is buried in ash! 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

The #1 bestselling chapter book series of all time celebrates 25 years with new covers and a new, easy-to-use numbering system! Jack and Annie are on a mission to save Merlin from his sorrows! The brother-and-sister team travel back in the magic tree house to the period known as the Renaissance. This time, Jack and Annie will need more than a research book and a magic wand. They'll need help from one of the greatest minds of all time. What will they learn from Leonardo da Vinci? Formerly numbered as Magic Tree House #38, the title of this book is now Magic Tree House Merlin Mission #10: Monday with a Mad Genius. 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!

Annie and Jack present information about Leonardo da Vinci, discussing the world in which he lived as well as his work as an artist and scientist.

The #1 bestselling Magic Tree House series is ready to whisk you away through time with Jack and Annie--this time to South America! When the magic tree house whisks Jack and Annie to a mountainside, they are surprised to find farmers nearby. Then they learn that the farmer's baby llama has been stolen, and Jack and Annie vow to bring the little animal back to its owners. But the journey is treacherous--they must climb to the peak of Machu Picchu and climb back down in order to complete this mission. Jack and Annie have been on many dangerous travels, but can they survive this one? Track the facts with Jack and Annie in the nonfiction companion to this book: Llamas and the Andes. 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 If you're looking for Merlin Mission #34: Season of the Sandstorms, it was renumbered as part of the rebrand in 2017 as Merlin Mission #6.