The 78-story treehouse

Name: The 78-story treehouse
Author: Andy Griffiths
ISBN: 9781250104854

Age Rating, Reading Level & Content Guide

Moo-vie Madness!

by Andy Griffiths

Illustrated by Terry Denton

Treehouse Books

Reading Level 3-4 C · Gentle Ages 9-12 Balanced Read Page-Turner

The text is written at a 3rd grade reading level, the subject matter is intended for middle graders (ages 9–12), and the content is gentle with no concerning themes. Its HootRating code, C, means gentle content.

Find on Amazon Listen on Audible

We may earn a commission from these links.

About This Book

Andy and Terry team up to protect their creative ideas from a group of sneaky spy cows, navigating hilarious challenges inside their amazing 78-story treehouse. Their wild adventure is filled with fun, friendship, and imaginative surprises that will keep readers laughing and cheering. Get ready for a playful journey where teamwork turns the impossible into the extraordinary!

Themes

Friendship Humor AdventureImaginationAuthors

Quick Assessment

This is a Level 3-4 book with gentle content intensity. No notable content concerns flagged. Written for readers ages 9-12.

Why we rated The 78-story treehouse C (Gentle)

The 78-story treehouse is written at a Level 3-4 reading level across 375 pages (approximately 11,519 words). Reading-wise, most kids in grade 5 and up can manage The 78-story treehouse on their own; younger readers can enjoy it with a parent or teacher reading along.

Read aloud, The 78-story treehouse runs about 1.3 hours — long enough to span several bedtime sessions.

We rate The 78-story treehouse as C (Gentle) because the content sits in the "Gentle" range — no conflict beyond everyday childhood experiences. Across our four dimensions (emotional, physical, social, thematic) the book reads as evenly gentle; no single dimension stands out as a concern.

No specific content flags were raised by community reviewers, which is consistent with the gentle intensity score.

Thematically, The 78-story treehouse explores friendship, humor, adventure, imagination, and authors — these threads give the book room to mean different things to different readers.

Good fit for

✓ Children in the Ages 9-12 range — the maturity and attention span match the story's pacing.
✓ Reluctant readers who need fast-paced, hook-heavy stories to stay engaged.
✓ Kids drawn to stories about friendship, humor, adventure.
✓ Readers who fall hard for one book and want a long series to live in — there are 12 more books in the Treehouse Books series.

Maybe not for

! Readers looking for something heavier — this is a gentle, low-stakes story by design.

For Parents

Content Intensity

C · Gentle

Emotional

Gentle

Physical

Gentle

Social

Gentle

Thematic

Gentle

Reading the HootRating code: the first letter is the content intensity (C = Gentle · L = Mild · M = Moderate · I = Intense · V = Very Intense); the second, when there is one, is the kind of content that drives it (E = Emotional · P = Physical · S = Social · T = Thematic). Reading level and age range are rated separately. How we rate

No conflict beyond everyday childhood experiences. Safe for sensitive readers.

Data confidence: standard

Was our "Gentle" content intensity rating accurate for this book?