Interest LevelReading LevelReading A-ZATOSWord Count
Grades 4 - 8Grades 2 - 4n/a3.712918

Andy and Terry are once again inviting readers to come hang out with them in their astonishing 39-story treehouse (it used to be 13 stories, then 26 stories, but they keep expanding). And this year they will have even more time to jump on the world's highest trampoline, toast marshmallows in an active volcano, swim in the chocolate waterfall, pet baby dinosaurs, and go head-to-trunk with the Trunkinator, since Terry has created the greatest invention that he―or anyone else―has ever invented . . . a Once-upon-a-time machine that will write and illustrate their entire book for them!

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!

This title has Common Core connections.

Hardcover, 352 pages
Published on April 7, 2015 by Feiwel & Friends
ISBN-10: 125002692X
ISBN-13: 9781250026927
17 Book Reviews
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  • warriorsgirl11
    warriorsgirl11Thursday, August 6, 2020 at 5:41 pm55 stars
    Terry proudly unveils his solution: a Once-upon-a-time machine that can create their book for them. It seems like a brilliant invention ... until the machine locks them out of their tree house so it can write a superior book. The friends enlist the help of Professor Stupido, the greatest un-inventor who ever lived. What will happen? Read the book to find out!
    • bballbookkid
      bballbookkidTuesday, July 14, 2020 at 12:28 pm55 stars
      This is a fun, kick back your feet, easy read . It doesn't take long to read, but it's a funny book. It is not the best in the series, but it's good.
      • bballbookkid
        bballbookkidTuesday, July 14, 2020 at 11:24 am55 stars
        This is a fun, kick back your feet, easy read . It doesn't take long to read, but it's a funny book.
        • JeffMonday, February 26, 2018 at 10:35 pm
          The book is pretty goooooood and my name 8s Harry not Jeff jk
          • kokywogima
            kokywogimaThursday, November 9, 2017 at 7:59 am
            You should read this book. If you like humor you would like this book. But first you should read The 13 Story Tree House first so you would understand everything!!
            • zyrenamyfu
              zyrenamyfuThursday, November 9, 2017 at 7:54 am44 stars
              the book was very good as well as the other tree houses.
              • taco2
                taco2Wednesday, June 21, 2017 at 12:44 pm55 stars
                you should read this book
                • jhan
                  jhanFriday, June 9, 2017 at 5:37 pm55 stars
                  Andy and Terry cause trouble again! they can't write a book because Terry messed up! can they write a book for Mr. Big Nose? They have to help Jill !
                  • gymgirlnz
                    gymgirlnzMonday, September 26, 2016 at 9:36 pm55 stars
                    Andy and Terry are good at writing story's because they are the best story writer in the world I think the book is amazing and I love the book I recommend this book
                    • rsroxy
                      rsroxyWednesday, September 21, 2016 at 3:15 pm55 stars
                      good book love there books