I know what you did last summer.
Lois Duncan
I know what you did last summer.
Age Rating, Reading Level & Content Guide
by Lois Duncan
The text is written at a 6th grade reading level, the subject matter is intended for middle graders (ages 9–12), and the content has moderate intensity with some emotionally heavy themes.
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About This Book
Here’s a secret: four friends made a pact to hide something terrible that happened last summer. They thought it was over, but someone else knows—and they want revenge. The real nightmare is just getting started.
Themes
Quick Assessment
This middle-grade mystery follows four friends who share a dark secret from the previous summer and face the consequences when it’s uncovered. The story includes suspenseful themes of guilt and revenge but is appropriate for ages 9-12, with no graphic content. It’s a gripping read for young mystery enthusiasts.
Why we rated I know what you did last summer. 11ME
I know what you did last summer. is written at a Level 6 reading level across 212 pages. Strong independent readers around grade 7.0 can typically handle this book on their own; with parent or teacher support, I know what you did last summer. works for readers up to grade 8.0.
We rate I know what you did last summer. as 11ME ("Moderate — Emotional") because the content sits in the "Moderate" range — moderate conflict that may involve loss, scary scenes, or interpersonal stakes. The strongest signals come from emotional weight — these are the dimensions parents should evaluate against their reader's tolerance.
No specific content flags were raised by community reviewers, which is consistent with the moderate intensity score.
Thematically, I know what you did last summer. explores mystery, friendship, suspense, 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.
- ✓ Patient readers who enjoy slower, character-driven stories.
- ✓ Kids drawn to stories about mystery, friendship, suspense.
Maybe not for
- ! Readers who get easily upset by emotional or moderately dark scenes — the conflict here is real, not just background flavor.
- ! Reluctant readers who need a fast hook — the pacing here rewards patience.
For Parents
Content Intensity
11ME — Moderate — EmotionalReal stakes and emotional weight. May include sustained danger, loss, or bullying.
Was our "Moderate" content intensity rating accurate for this book?
Reading Insights
Hook Factor
2/10A steady, thoughtful read that rewards patient readers.
Discussion Potential
3/10A lighter read — great for independent enjoyment.
Book DNA
Multi-dimensional content fingerprint
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Details
Book Length
- ISBN
- 9780671017224
- Pages
- 212
- Publisher
- Archway Paperbacks
- Published
- 1997
- Type
- Fiction