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 has ever come out again. Well, not yet, anyway.

This time, the two friends have a whole week to finish their next book, and Andy even knows what it should be about—the story of how he and Terry first met. But, life is NEVER boring in the treehouse, and emergency shark operations, giant storms, and wooden pirate heads are just the beginning....

This title has Common Core connections.

Read the whole series!
The 13-Story Treehouse
The 26-Story Treehouse
The 39-Story Treehouse
The 52-Story Treehouse
The 65-Story Treehouse
The 78-Story Treehouse
The 91-Story Treehouse
The 104-Story Treehouse
The 117-Story Treehouse
The 130-Story Treehouse
The 143-Story Treehouse
The 156-Story Treehouse
The 169-Story Treehouse

Also by Andy Griffiths
The Treehouse Fun Book
The Treehouse Joke Book
Tales from the Treehouse
Adventures Unlimited: You and Me and the Land of Lost Things