The case of the locked box
Lewis B. Montgomery
The case of the locked box
Age Rating, Reading Level & Content Guide
by Lewis B. Montgomery
Illustrated by Wummer, Amy, illustrator
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 gentle with no concerning themes.
We may earn a commission from these links. Bookshop.org supports independent bookstores with every purchase.
About This Book
When detective-in-training Jazz, accused of stealing 100 dollars from a locked cashbox, stands trial in student court, it is up to her sleuthing partner, Milo, to prove her innocence.
Quick Assessment
This is a Level 4-5 book. No notable content concerns flagged. Written for readers ages 9-12.
Why we rated The case of the locked box Level 0
The case of the locked box is written at a Level 4-5 reading level across 106 pages. Strong independent readers around grade 5.5 can typically handle this book on their own; with parent or teacher support, The case of the locked box works for readers up to grade 6.5.
We rate The case of the locked box as Unrated because the content sits in the "Unrated" range — no conflict beyond everyday childhood experiences.
No specific content flags were raised by community reviewers, which is consistent with the unrated intensity score.
Good fit for
- ✓ Children in the Ages 9-12 range — the maturity and attention span match the story's pacing.
- ✓ Patient readers who enjoy slower, character-driven stories.
Maybe not for
- ! Reluctant readers who need a fast hook — the pacing here rewards patience.
For Parents
Content Intensity
Level 0 — UnratedThis book has not yet been rated for content intensity.
Was our "Unrated" content intensity rating accurate for this book?
Reading Insights
Hook Factor
1/10A steady, thoughtful read that rewards patient readers.
Discussion Potential
1/10A lighter read — great for independent enjoyment.
Book DNA
Multi-dimensional content fingerprint
Details
Book Length
- ISBN
- 9781575656250
- Pages
- 106
- Publisher
- Kane Press
- Published
- 2013
- Type
- Fiction