Key to the treasure
Peggy Parish
Key to the treasure
Age Rating, Reading Level & Content Guide
by Peggy Parish
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
Here’s a secret: a hidden treasure waits to be found on a quiet farm, but only if you can crack the mysterious codes left behind. Liza, Bill, and Jed dive into puzzles that unlock their family's past, but that’s only the beginning.
Quick Assessment
This middle-grade mystery follows three siblings as they spend summer on their grandparents’ farm and uncover a family secret through solving coded clues. Suitable for ages 9-12, the story encourages problem-solving and critical thinking with light suspense and no concerning content.
Why we rated Key to the treasure 9C
Key to the treasure is written at a Level 4-5 reading level across 154 pages. Strong independent readers around grade 5.5 can typically handle this book on their own; with parent or teacher support, Key to the treasure works for readers up to grade 6.5.
We rate Key to the treasure as 9C ("Clear") 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, Key to the treasure explores mystery, family, adventure, and detective — 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 mystery, family, adventure.
Maybe not for
- ! Readers whose emotional readiness lags behind their decoding skills — this book's intensity outruns its reading level, a classic "gifted kid" mismatch.
For Parents
Content Intensity
9C — ClearNo conflict beyond everyday childhood experiences. Safe for sensitive readers.
Was our "Gentle" 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
Similar Books
Based on content and theme analysis
Secret of the Treasure Keepers
A. M. Howell
Secret of the Treasure Keepers
A. M. Howell
Hidden treasure
C. B. Colby
Hidden treasure
C. B. Colby
The treasure hunt
Paul Hutchens
The treasure hunt
Paul Hutchens
Hidden treasure
Tina Holdcroft
Hidden treasure
Tina Holdcroft
Treasure hunt
Meish Goldish
Treasure hunt
Meish Goldish
The mystery on Cobbett's Island
Kathryn Kenny
The mystery on Cobbett's Island
Kathryn Kenny
Details
Book Length
- ISBN
- 9780440444381
- Pages
- 154
- Publisher
- Yearling Books
- Published
- 1980
- Type
- Fiction