"When Andy develops a severe toothache that prevents him from writing new jokes for their book, Terry uses their fantastical treehouse's money-making machine funds to purchase a Joke Writer 2000, with unexpected results." --

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...

"Andy and Terry live in a 169-story treehouse...It now has a kangaroo-riding range, a Whatever-Weather-You-Want dome, and a hall of fun-house mirrors--the perfect place to hide from the truancy officer who is trying to catch them and Jill and make them go to school! Unfortunately, the hall of fun-house mirrors is also the place where their evil troublemaking twins, Anti-Andy, Terrible-Terry, and Junkyard-Jill, live in a doppelganger mirror, and they...

What's black and white and read all over the world? Treehouse series, of course!

Andy and Terry live in a treehouse. But it's not just any old treehouse, it's the most amazing treehouse in the world! This treehouse has thirteen stories, a bowling alley, a see-through swimming pool, a secret underground laboratory, and a marshmallow machine that follows them around and automatically shoots marshmallows into their mouths whenever they are hungry. Life would be perfect for Andy and Terry if it wasn't for the fact that they have to...

Join Andy and Terry in their wonderfully wild and wacky 104-storey treehouse. You can throw some refrigerators, make money with the money-making machine (or honey if you'd prefer, it makes that too), climb the never-ending staircase, have a bunfight, deposit some burps in the burp bank, get totally tangled up in the tangled-up level, or just take some time out and relax in the beautiful sunny meadow full of buttercups, butterflies and bluebirds. Well,...

A sequel to The 13-Story Treehouse finds Andy and Terry recounting the story of how they first met, an adventure marked by emergency shark operations, giant storms and wooden pirate heads.

Andy and Terry live in a 143-story treehouse. (It used to be a 130-story treehouse, but they built another thirteen stories.) It has a baked bean geyser that erupts on the hour every hour, a wrecking ball, a fish milkshake shack, a word-o-matic (it knows every word in the whole world!), a toffee apple orchard guarded by a kind-hearted scarecrow, and a camping ground. Andy's been a bit stressed out lately, so Terry decides the perfect way to relax...