Reviewed by HootRated editorial · Last updated
Killing Mr. Griffin
Lois Duncan
Killing Mr. Griffin
Age Rating, Reading Level & Content Guide
by Lois Duncan
The text is written at a 4th grade reading level, the subject matter is intended for teens (ages 13+), and the content is intense and may include graphic or distressing scenes.
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About This Book
When a group of students decide to prank their strict teacher, things quickly spiral out of control. What starts as a harmless joke turns dangerous, and Susan soon finds herself caught in a chilling mystery where trust is shattered and lives are at risk. Can she uncover the truth before it's too late?
Quick Assessment
This is a Level 4-5 book with intense content intensity. Content themes include physical danger, realistic violence, fear & anxiety. Written for readers ages 13+.
Why we rated Killing Mr. Griffin 9IE
Killing Mr. Griffin is written at a Level 4-5 reading level across 223 pages (approximately 57,350 words). Strong independent readers around grade 5.8 can typically handle this book on their own; with parent or teacher support, Killing Mr. Griffin works for readers up to grade 6.8.
Read aloud, Killing Mr. Griffin runs about 6.4 hours — long enough to span several bedtime sessions.
We rate Killing Mr. Griffin as 9IE ("Intense — Emotional") because the content sits in the "Intense" range — intense conflict including peril, frightening scenes, or emotionally heavy themes. The strongest signals come from emotional weight, physical peril — these are the dimensions parents should evaluate against their reader's tolerance.
Specific content flags noted by reviewers: Physical Danger, Realistic Violence, Fear & Anxiety.
Thematically, Killing Mr. Griffin explores mystery, 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 13+ range — the maturity and attention span match the story's pacing.
- ✓ Patient readers who enjoy slower, character-driven stories.
- ✓ Kids drawn to stories about mystery, friendship, coming of age.
Maybe not for
- ! Sensitive readers who get overwhelmed by intense conflict or scary scenes.
- ! Children younger than 13+ — the content intensity is above what most younger kids can process comfortably.
- ! Children who are sensitive to violence, even when handled at age-appropriate levels.
- ! Reluctant readers who need a fast hook — the pacing here rewards patience.
For Parents
Content Intensity
9IE — Intense — EmotionalHeavy themes explored in depth. War, death, abuse addressed directly.
Content Flags
Was our "Intense" content intensity rating accurate for this book?
Reading Insights
Hook Factor
2/10A 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
- 0440945151
- Pages
- 223
- Publisher
- Dell
- Published
- 1979
- Type
- Fiction
- Word Count
- 57,350
- Read-Aloud
- ~6h 22m
- Text Density
- Dense