Build from 13 stories
Start with The 13-Story Treehouse to meet Andy, Terry, Jill, and the publisher who keeps demanding their next book before the recurring jokes multiply.
Book Series · 13 Books
In order from The 13-Story Treehouse to The 169-Story Treehouse.
Thirteen fast, heavily illustrated chapter books add thirteen new stories at a time to Andy and Terry's impossible treehouse—and a fresh round of comic disasters.
Reviewed by the Bookroo Editors Updated
Read the numbered novels from The 13-Story Treehouse through The 169-Story Treehouse. Each new book adds thirteen floors and recalls earlier inventions and characters, even though its wild deadline adventure can also work on its own.
The 169-Story Treehouse is the thirteenth and final numbered novel. Tales from the Treehouse and The Treehouse Joke Book are optional companions rather than missing steps in the main sequence.
Sources: Macmillan's official Treehouse series page, Macmillan's final-volume page.
The books mix short bursts of text with dense black-and-white cartoons, slapstick, gross-out jokes, fantastical peril, and deliberate rule-breaking. The pace and visual support can be inviting for reluctant readers, though families looking for realistic behavior or a quiet story should expect cheerful chaos instead.
Start with The 13-Story Treehouse to meet Andy, Terry, Jill, and the publisher who keeps demanding their next book before the recurring jokes multiply.
Two friends try to write a book while dealing with various distractions and adventures.
13 books · Published 2011–2024
Two friends try to write a book while dealing with various distractions and adventures.
A week to write a book turns chaotic with sharks, storms, and a mysterious maze.
Explore a 39-story treehouse with wild inventions and unexpected adventures.
Two friends try to solve a mystery involving a missing publisher and a magical treehouse.
Two friends travel through time to get a building permit for their treehouse.
Two friends try to make a movie about their adventures in a 78-story treehouse, but things don't go as planned.
Babysitting chaos unfolds in a 91-story treehouse full of wild inventions and mysteries.
A boy and his friend try to write a book while dealing with a toothache and various distractions.
Can Andy and Terry escape the Story Police in their chaotic treehouse?
Three friends are abducted by a giant flying eyeball and taken to a planet where they must fight in an intergalactic death battle.
Two friends, Andy and Terry, go on a camping trip and get into various misadventures, including an encounter with mysterious creatures called hobyahs.
Santa's crash-landing in a treehouse leads to chaos with cloned Santas. Can Christmas be saved?
Can they escape school, save the treehouse, and finish their book on time?
2 books · Published 2020–2022
A story collection and a joke book offer extra Treehouse fun without continuing the numbered climb.
Dive into a world of endless laughs with a joke book from the Treehouse series.
Dare to enter a treehouse of 13 brain-bendingly silly tales. Proceed with caution.
There are 13 books in the Treehouse series. It began with The 26-Story Treehouse in 2011, and the newest book, The 169-Story Treehouse, was published in 2024.
Start with The 13-Story Treehouse and follow the series order — the books above are numbered #1 through #13.
The series is best for ages 6–12, based on the age ranges of the individual books.
The 65-Story Treehouse (Book #5) is the longest book in the series at 17,569 words (384 pages).
The 156-Story Treehouse (Book #12) is the shortest at 8,672 words (288 pages).
The people who bring The Treehouse to life.
Keep exploring







