The secrets of the dolphins
Diana Reiss
The secrets of the dolphins
Age Rating, Reading Level & Content Guide
by Diana Reiss
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
What if you could dive beneath the waves and swim alongside dolphins, discovering their secrets? Imagine exploring their playful world, learning how they communicate and form friendships. But what happens when their home faces danger, and only you can help protect it?
Quick Assessment
This middle-grade fiction book introduces readers to the fascinating world of dolphins, covering their physical traits, behaviors, and interactions with humans. Appropriate for ages 9-12, it blends imaginative storytelling with educational elements about marine life. The narrative encourages empathy for wildlife and environmental awareness without heavy or distressing content.
Why we rated The secrets of the dolphins 9C
The secrets of the dolphins is written at a Level 4-5 reading level across 121 pages. Strong independent readers around grade 5.5 can typically handle this book on their own; with parent or teacher support, The secrets of the dolphins works for readers up to grade 6.5.
We rate The secrets of the dolphins 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, The secrets of the dolphins explores adventure, science & nature, friendship, and family — 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.
- ✓ Patient readers who enjoy slower, character-driven stories.
- ✓ Kids drawn to stories about adventure, science & nature, friendship.
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.
- ! Reluctant readers who need a fast hook — the pacing here rewards patience.
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
2/10A 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
The dolphins and me
Don C. Reed
The dolphins and me
Don C. Reed
Dolphins
Melissa Stewart
Dolphins
Melissa Stewart
Secret of the Dolphins
Edward Packard
Secret of the Dolphins
Edward Packard
Explore My World Dolphins
Becky Baines
Explore My World Dolphins
Becky Baines
Dolphins
Kate Riggs
Dolphins
Kate Riggs
Project Dolphin
Jill Bailey
Project Dolphin
Jill Bailey
Details
Book Length
- ISBN
- 0380760460
- Pages
- 121
- Publisher
- Avon Books
- Published
- 1991
- Type
- Fiction