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The 13-Story Treehouse book cover

The 13-Story Treehouse

Monkey Mayhem!

by Andy Griffiths

Feiwel & Friends 2013

Book 1 of The Treehouse Series

Easy read — content targets 4th–8th grade

Reading level 3 (3rd grade) but themes aimed at ages 9–14

3rd grade English Juvenile Fiction
1
AR Points
1.3h
Read time
AR Quiz Available

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Genre

Humorous Fiction

Themes

  • friendship
  • creativity
  • imagination
  • humor
  • teamwork
  • problem-solving
  • procrastination
  • adventure

About this book

Best friends Andy and Terry live in the most outrageous treehouse ever—complete with a see-through pool, a bowling alley, and a marshmallow-shooting machine. They’re supposed to be writing a book, but wild distractions (and monkey mayhem!) keep getting in the way. Zany illustrations, short chapters, and nonstop jokes make this a perfect pick for fans of silly, fast-paced reads. Great for ages 7–11 and especially inviting for reluctant readers.

Setting: a wildly imaginative multi-level treehouse in the present day

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Frequently Asked Questions

Is The 13-Story Treehouse right for my child?

It depends — here's what to consider for The 13-Story Treehouse. The reading level is AR 3, which is typical for 3rd grade. The interest level is rated Middle Grades (4–8), meaning the themes and content are designed for ages 9–14 (4th–8th grade). Themes include friendship, creativity, imagination.

How long does it take to read The 13-Story Treehouse?

At a typical 3rd grade reading pace, The 13-Story Treehouse takes around 1.3h to finish. The book has 10,400 words. Slower or faster readers may vary significantly.

Does The 13-Story Treehouse have an AR quiz?

Yes — The 13-Story Treehouse has an AR quiz available, worth 1 point. Your child will need to take and pass the quiz through their school's Accelerated Reader program to earn credit. The quiz is typically 5–20 multiple choice questions about plot, characters, and setting.

What grade level is The 13-Story Treehouse?

The 13-Story Treehouse has an AR reading level of 3, which places it at a 3rd grade reading difficulty. The interest level is rated Middle Grades (4–8) — this reflects the age-appropriateness of the content and themes, not just the reading difficulty. A strong younger reader may handle the words fine while the themes are aimed at an older audience, or vice versa.