In Self-Defense
Franklin W. Dixon
In Self-Defense
Age Rating, Reading Level & Content Guide
The Hardy Boys Casefiles #45
by Franklin W. Dixon
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
Here's a secret: Bayport’s newest martial arts school has a mystery shadowing it. Someone doesn’t want it to succeed, and strange things start happening that no one can explain—but that’s only the beginning.
Quick Assessment
This middle-grade mystery centers on a martial arts school in Bayport facing unexplained sabotage. Suitable for readers ages 9-12, it offers an engaging introduction to detective work without intense violence or mature themes. The story encourages problem-solving and perseverance in the face of challenges.
Why we rated In Self-Defense 9LE
In Self-Defense is written at a Level 4-5 reading level across 155 pages. Strong independent readers around grade 5.5 can typically handle this book on their own; with parent or teacher support, In Self-Defense works for readers up to grade 6.5.
We rate In Self-Defense 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, In Self-Defense explores mystery, adventure, friendship, and coming of age — 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, adventure, friendship.
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
2/10A lighter read — great for independent enjoyment.
Book DNA
Multi-dimensional content fingerprint
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Details
Book Length
- ISBN
- 9780671700423
- Pages
- 155
- Publisher
- Simon Pulse
- Published
- 1990
- Type
- Fiction