There are 14 books in the The Treehouse Books series. The newest book is The Guide to the Treehouse which came out in 2023.

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 you around and automatically shoots marshmallows…

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2
The 26-Story Treehouse

By Andy Griffiths , Terry Denton (illustrator) ,

Book cover of The 26-Story Treehouse

Andy and Terry live in a 26-story treehouse. (It used to be 13 stories, but they've expanded.) It has a bumper car rink, a skate ramp, an antigravity chamber, an ice cream parlor with 78 flavors, and the Maze of Doom―a maze so complicated that nobody who has gone in…

3
The 39-Story Treehouse

By Andy Griffiths , Terry Denton (illustrator) ,

Book cover of The 39-Story Treehouse

Join New York Times-bestselling author Andy Griffiths and illustrator Terry Denton on another wild storytelling adventure in a series Publishers Weekly described as "Anarchic absurdity at its best." Welcome to The 39-Story Treehouse...What are you waiting for? Come on up!

Andy and Terry are once again inviting readers to come…

4
The 52-Story Treehouse

By Andy Griffiths , Terry Denton (illustrator) ,

Book cover of The 52-Story Treehouse

Andy and Terry live in a 52-Story treehouse. (It used to be a 39-story treehouse, but they keep expanding.) It has a chainsaw-juggling level, a make-your-own-pizza parlor, a rocket-powered carrot-launcher, a life-size snakes and ladders game, a remembering booth, a Ninja Snail Training Academy and a high-tech detective agency, with…

5
The 65-Story Treehouse

By Andy Griffiths , Terry Denton (illustrator) ,

Book cover of The 65-Story Treehouse

Before they can go up, they have to go back―travel through time with Andy and Terry as they attempt to save the treehouse!

New York Times bestselling author Andy Griffiths invites readers to come hang out with him and his friend Terry in their 65-Story Treehouse-the fifth book in the…

6
The 78-Story Treehouse

By Andy Griffiths , Terry Denton (illustrator) ,

Book cover of The 78-Story Treehouse

New York Times bestselling author Andy Griffiths invites readers to come hang out with him and his friend Terry in their 78-Story Treehouse―the sixth book in the illustrated chapter book series filled with Andy and Terry's signature slapstick humor!

Andy and Terry live in a 78-story treehouse. (It used to…

7
The 91-Story Treehouse

By Andy Griffiths , Terry Denton (illustrator) ,

Book cover of The 91-Story Treehouse

New York Times-bestselling team Andy Griffiths and Terry Denton invite readers to come hang out with them in their 91-Story Treehouse―the seventh book in the illustrated chapter book series filled with Andy and Terry's signature slapstick humor!

Andy and Terry live in a 91-story treehouse. (It used to be a…

8
The 104-Story Treehouse

By Andy Griffiths , Terry Denton (illustrator) ,

Book cover of The 104-Story Treehouse

New York Times-bestselling team Andy Griffiths and Terry Denton invite readers to come hang out with them in their 104-Story Treehouse―the eighth book in the illustrated chapter book series filled with Andy and Terry's signature slapstick humor!

Andy and Terry live in a 104-story treehouse. (It used to be a…

9
The 117-Story Treehouse

By Andy Griffiths , Terry Denton (illustrator) ,

Book cover of The 117-Story Treehouse

New York Times-bestselling team Andy Griffiths and Terry Denton invite readers to come hang out with them in their 117-Story Treehouse―the ninth book in the illustrated chapter book series filled with Andy and Terry's signature slapstick humor!

Andy and Terry live in a 117-story treehouse. (It used to be a…

10
The 130-Story Treehouse

By Andy Griffiths , Terry Denton (illustrator) ,

Book cover of The 130-Story Treehouse

New York Times-bestselling team Andy Griffiths and Terry Denton invite readers to come hang out with them in their 130-Story Treehouse―the tenth book in the illustrated chapter book series filled with Andy and Terry's signature slapstick humor!

Andy and Terry live in a 130-story treehouse. (It used to be a…

11
The 143-Story Treehouse

By Andy Griffiths , Terry Denton (illustrator) ,

Book cover of The 143-Story Treehouse

New York Times-bestselling team Andy Griffiths and Terry Denton invite readers to come hang out with them in their 143-Story Treehouse―the eleventh book in the illustrated chapter book series filled with Andy and Terry's signature slapstick humor!

Andy and Terry live in a 143-story treehouse. (It used to be a…

12
The 156-Story Treehouse

By Andy Griffiths , Terry Denton (illustrator) ,

Book cover of The 156-Story Treehouse

New York Times-bestselling team Andy Griffiths and Terry Denton invite readers to come hang out with them in their 156-Story Treehouse―the twelfth book in the illustrated chapter book series filled with Andy and Terry's signature slapstick humor!

Andy and Terry live in a 156-story treehouse. (It used to be a…

13
The 169-Story Treehouse

By Andy Griffiths , Terry Denton (illustrator) ,

Book cover of The 169-Story Treehouse

Andy and Terry live in a 169-story treehouse. (It used to be a 156-story treehouse, but they've added 13 more stories.) It now has a kangaroo-riding range, a WHATEVER-WEATHER-YOU-WANT dome and a hall of funhouse mirrors―the perfect place to hide from the truancy officer who is trying to catch them…

14
The Guide to the Treehouse

By Andy Griffiths , Terry Denton (illustrator) ,

Book cover of The Guide to the Treehouse

There are lots of laughs at every level in The Guide to the Treehouse: Who's Who and What's Where?, a laugh-out-loud, fully illustrated guide giving you the inside scoop into the world of the Treehouse from the creators Andy Griffiths and Terry Denton.

An essential guide for any Treehouse fan,…