Meet Jackie Robinson and solve a mystery in the #1 bestselling Magic Tree House chapter book series! PLAY BALL! Jack and Annie aren’t great baseball players . . . yet! Then Morgan the librarian gives them magical baseball caps that will make them experts. They just need to wear the caps to a special ballgame in Brooklyn, New York. The magic tree house whisks them back to 1947! When they arrive, Jack and Annie find out that they will be batboys in the game—not ballplayers. What exactly does Morgan want them to learn? And what’s so special about this game? They only have nine innings to find out! Discover history, mystery, humor, and baseball in this one-of-a-kind adventure in Mary Pope Osborne’s New York Times bestselling Magic Tree House series lauded by parents and teachers as books that encourage reading. Magic Tree House books, with fiction and nonfiction titles, are perfect for parents and teachers using the Core Curriculum. With a blend of magic, adventure, history, science, danger, and cuteness, the topics range from kid pleasers (pirates, the Titanic, pandas) to curriculum perfect (rain forest, American Revolution, Abraham Lincoln) to seasonal shoo-ins (Halloween, Christmas, Thanksgiving). There is truly something for everyone here!

Merlin Mission Books 1-4 of the #1 New York Times bestselling Magic Tree House series! Beyond the realms of time and space are lands that exist only in myths and legends. This is where the magic tree house is taking Jack and Annie on the mission of a lifetime! They will visit Camelot, a haunted castle, an island lost in mist, and the Land-Behind-the-Clouds. It is one unforgettable adventure! Recently rebranded, the first 4 Magic Tree House Merlin Mission books are the perfect gift for fans of the Magic Tree House series. Parents, teachers, and librarians hail the chapter-book series as a tool to promote reading, as even the most reluctant readers want to know where the magic tree house will take the brother-and-sister team next. Magic Tree House Merlin Missions are more challenging adventures for the experienced Magic Tree House reader. Books in this Merlin Missions set include: Christmas in Camelot (#1), Haunted Castle on Hallows Eve (#2), Summer of the Sea Serpent (#3), Winter of the Ice Wizard (#4).

Travel back in time in the magic tree house with Jack and Annie in this #1 bestselling series and meet the greatest warriors of all--the Romans! We are warriors! Jack and Annie have met knights, pirates, ninjas, and Vikings, but they have never met the most fearsome warriors of all: Roman soldiers. When the magic tree house whisks them back to the early 100s AD, Jack and Annie find themselves in a Roman camp. Their mission: Be like a warrior. That is easier said than done! The Roman soldiers are much scarier in person--and suspicious of strangers. Then a mysterious man riding a black horse gives Jack and Annie some advice to help them on their mission. But the man may not be who he seems. Will Jack and Annie be good warriors? Can they learn what makes the Roman soldiers so great? And who is the mysterious rider . . . ? 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 #31: Summer of the Sea Serpent, it was renumbered as part of the rebrand in 2017 as Merlin Mission #3.

From the #1 bestselling chapter book series of all time . . . Jack and Annie are caught out in the rain in the most dangerous Magic Tree House mission yet! Jack and Annie are on a mission! When the magic tree house whisks them back to Galveston, Texas, in 1900, they find out that a big storm is coming. But even though there is rain and wind, no one believes there is any danger. As the storm grows, seawater floods the city. Now everyone needs help! Jack and Annie have a little bit of magic and a lot of hope--but will it be enough? 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 #30: Haunted Castle on Hallow's Eve, it was renumbered as part of the rebrand in 2017 as Merlin Mission #2.

Eight-year-old Jack and his younger sister Annie find a magic treehouse, which whisks them back to an ancient time zone where they see live dinosaurs.

The #1 bestselling chapter book series of all time celebrates 25 years with new covers and a new, easy-to-use numbering system! Goal! Jack and Annie have tickets to one of the most exciting soccer games ever—the 1970 World Cup! They are sure the famous soccer player Pelé will tell them a “secret of greatness.” The game is nonstop action and the stands are packed. But how will they find Pelé in a crowd of 100,000 soccer fans? Have they failed their mission? Or will the answer come when they least expect it? Formerly numbered as Magic Tree House #52, the title of this book is now Magic Tree House Merlin Mission #24: Soccer on Sunday. 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!