When the magic tree house takes Jack and Annie back to World War II, Europe is in trouble! It is June 1944 and the brother-and-sister team must go behind enemy lines and crack a code that could save a lot of lives. But this is war, and Jack and Annie might just be in the wrong place at the wrong time. Can they save everyone before the great battle of D-Day begins? They don’t know, but they have to try!

"Jack and Annie are magically transported to mid-1800's Thebes where they are saved from a dangerous accident by Florence Nightingale!"--

It's an ordinary morning in Walla Walla until Lulu, her teacher, the school nurse, and the principal are all infected by a word warp which makes them reduplicate everything they say.

Jack and Annie have survived all kinds of dangers on their adventures in the magic tree house. Find out how you can survive lots of scary situations, including sharks, earthquakes, fires, shipwrecks, and many more! Features a compass embedded in the front cover. With full-color photographs and illustrations, facts about real-life survival stories, and tips from Jack and Annie, this is a must-have for all survivors of the bestselling Magic Tree House...

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.

Presents a nonfiction companion book to "Stallion by Starlight," discussing the history of domesticating horses and explaining why Alexander the Great's horse was so famous.

Jack and Annie learn amazing facts about six history-changing individuals, including Susan B. Anthony, Mahatma Ghandi, Martin Luther King Jr., John Muir, Florence Nightingale, and Harriet Tubman.

While on a mission to prove to Merlin that they can use magic wisely, Jack and Annie travel to seventeenth-century Venice, Italy, to save the city from disaster. Merlin has asked Jack and Annie to help on another Merlin Mission. This time they head back into history to Venice, Italy, in the 1700s. With the help of some new friends, a research book, and a mysterious rhyme from Merlin, the heroes will save the beautiful city from a flood! Yet another...

Jack and Annie visit the Paris World's Fair of 1889 in an effort to protect four scientific pioneers from an evil sorcerer.

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.