Reviewed by HootRated editorial · Last updated
The 39-Story Treehouse
Andy Griffiths
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.
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About This Book
Andy and Terry have taken their treehouse to new heights with 39 incredible stories stacked high! Inside, they've created a magical machine that helps bring their wildest tales to life, making every day an exciting adventure filled with imagination and fun.
Themes
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 39-Story Treehouse C (Gentle)
The 39-Story Treehouse is written at a Level 3-4 reading level across 352 pages (approximately 12,918 words). Reading-wise, most kids in grade 5 and up can manage The 39-Story Treehouse on their own; younger readers can enjoy it with a parent or teacher reading along.
Read aloud, The 39-Story Treehouse runs about 1.4 hours — long enough to span several bedtime sessions.
We rate The 39-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 39-Story Treehouse explores friendship, adventure, humor, fantasy world-building, and creativity — 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, adventure, humor.
- ✓ 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 · GentleReading 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.
Was our "Gentle" content intensity rating accurate for this book?
Reading Insights
Hook Factor
9/10High engagement — fast-paced, fun, and hard to put down. Great for reluctant readers.
Discussion Potential
1/10A lighter read — great for independent enjoyment.
Book DNA
Multi-dimensional content fingerprint
More in the Treehouse Books Series
The 13story Treehouse
Andy Griffiths
The 13story Treehouse
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The 26-story treehouse
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The 26-story treehouse
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The 52-story treehouse
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The 52-story treehouse
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The 78-story treehouse
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The 78-story treehouse
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The 91-story treehouse
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The 91-story treehouse
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130-Story Treehouse
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130-Story Treehouse
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The 143-Story Treehouse
Andy Griffiths
The 143-Story Treehouse
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104-Story Treehouse
Andy Griffiths
104-Story Treehouse
Andy Griffiths
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Details
Book Length
- ISBN
- 9781250026927
- Pages
- 352
- Publisher
- Feiwel & Friends
- Published
- Apr 07, 2015
- Type
- Fiction
- Word Count
- 12,918
- Read-Aloud
- ~1h 26m
- Text Density
- Picture-Heavy