Lethal Cargo
Franklin W. Dixon
Lethal Cargo
Age Rating, Reading Level & Content Guide
The Hardy Boys Casefiles #67
by Franklin W. Dixon
The text is written at a 4th grade reading level, the subject matter is intended for teens (ages 13+), and the content is mild with minimal sensitive material.
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About This Book
What would you do if a quiet trip on a yacht turned into a dangerous mystery? Frank and Joe find themselves chasing clues about a missing crew and a secret cargo on a deserted ship. Can they uncover the truth before it's too late?
Quick Assessment
This mystery novel follows two young detectives as they sail from Saint Martin to Florida and stumble upon a cargo ship with a missing crew and hidden secrets. Suitable for readers aged 13 to 18, the story blends suspense and adventure without graphic content. Parents should note the themes of espionage and mystery, which are handled in an age-appropriate way.
Why we rated Lethal Cargo 9LE
Lethal Cargo is written at a Level 4-5 reading level across 160 pages. Strong independent readers around grade 5.5 can typically handle this book on their own; with parent or teacher support, Lethal Cargo works for readers up to grade 6.5.
We rate Lethal Cargo 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, Lethal Cargo explores mystery, adventure, and friendship — 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.
- ✓ 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
1/10A lighter read — great for independent enjoyment.
Book DNA
Multi-dimensional content fingerprint
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Details
Book Length
- ISBN
- 9780671731038
- Pages
- 160
- Publisher
- Simon Pulse
- Published
- September 1, 1992
- Type
- Fiction