Hidden Room #2
Dori Hillestad Butler
Hidden Room #2
Age Rating, Reading Level & Content Guide
by Dori Hillestad Butler
The text is written at a 4th grade reading level, the subject matter is intended for middle graders (ages 9–12), and the content is mild with minimal sensitive material.
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About This Book
Marly, Sai, and Isla sneak through secret staircases and hidden rooms in Mr. Summerling’s mysterious house. Papers flutter in their hands, clues pointing deeper into the unknown — but suddenly, footsteps thunder behind them. Can the Treasure Troop solve the mystery before they’re caught?
Themes
Quick Assessment
Hidden Room #2 is a middle-grade mystery chapter book featuring three friends who follow clues to uncover secrets in their neighbor’s house. Appropriate for ages 9-12, it combines adventure and problem-solving with light suspense. There is mild tension from the presence of an antagonist, but no graphic content or mature themes.
Why we rated Hidden Room #2 9LE
Hidden Room #2 is written at a Level 4-5 reading level across 128 pages. Strong independent readers around grade 5.5 can typically handle this book on their own; with parent or teacher support, Hidden Room #2 works for readers up to grade 6.5.
We rate Hidden Room #2 as 9LE ("Light — Emotional") because the content sits in the "Mild" range — mild conflict — the kind a child encounters in normal play and sibling life. Across our four dimensions (emotional, physical, social, thematic) the book reads as evenly mild; no single dimension stands out as a concern.
No specific content flags were raised by community reviewers, which is consistent with the mild intensity score.
Thematically, Hidden Room #2 explores friendship, adventure, mystery, juvenile fiction, and code-cracking — 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.
- ✓ Kids drawn to stories about friendship, adventure, mystery.
Maybe not for
- ! Readers looking for something heavier — this is a gentle, low-stakes story by design.
For Parents
Content Intensity
9LE — Light — EmotionalLight conflict or tension. Mild peril resolved quickly.
Was our "Mild" content intensity rating accurate for this book?
Reading Insights
Hook Factor
3/10A steady, thoughtful read that rewards patient readers.
Discussion Potential
1/10A lighter read — great for independent enjoyment.
Book DNA
Multi-dimensional content fingerprint
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Details
Book Length
- ISBN
- 9780593094860
- Pages
- 128
- Publisher
- National Geographic Books
- Published
- 2021
- Type
- Fiction