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.

Join Andy and Terry in their now 91-storey spectacular treehouse. They've added thirteen new levels, including the world's most powerful whirlpool, a mashed-potato-and-gravy train and a human pinball machine. Why not try your luck on the spin-and-win prize wheel or hang out in a giant spider web (with a giant spider), or you can always get your fortune told by Madam Know-it-all or eat a submarine sandwich the size of an actual submarine while deciding...

Pete invites his friends over, but when he finds that his tree house is not big enough for everyone, they work together to build a fun place that can house everyone.

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.

Jack and Annie travel in their magic tree house to Elizabethan London, where they become actors in a production of A Midsummer Night's Dream and try to rescue a tame bear.

Their magic tree house takes Jack and Annie back to retrieve a lost story in ancient Greece, where they witness the original Olympic games and are surprised to find what girls of the time were not allowed to do.

Jack and Annie travel in their Magic Tree House back to a Hawaiian island of long ago where they make friends, learn how to surf, and encounter a tsunami.

Who wouldn't want to live in a treehouse? Especially a 13-story treehouse that has a bowling alley, a see-through swimming pool, a tank full of sharks, a library full of comics, a secret underground laboratory, a games room, self-making beds, vines you can swing on, a vegetable vaporiser and a marshmallow machine that follows you around and automatically shoots your favorite flavored marshmallows into your mouth whenever it discerns you're hungry....

Andy and Terry live in a 78-story treehouse. (It used to be a 65-story treehouse, but they just keep building more levels!) It has a drive-thru car wash, a courtroom with a robot judge called Edward Gavelhead, a scribbletorium, a combining machine, an ALL-BALL sports stadium, a high- security potato chip storage facility, and an open-air movie theatre with a super-giant screen ... which is a very useful thing to have now that Terry's going to be a...

Their magic tree house takes Jack and Annie deep into the sea, where they meet up with dolphins, sharks, and octopi as they search for the answer to an ancient riddle. Morgan le Fay will make Jack and Annie masters of the tree house if only they can solve four riddles -- which will take four books, of course! Dolphins at Daybreak begins the third set of four books in this magical (and increasingly popular) series! Jack and Annie are off in the Magic...