Key out of Time
Andre Norton
Key out of Time
Age Rating, Reading Level & Content Guide
by Andre Norton
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.
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About This Book
Ross Murdock and his team are not just explorers—they’re time travelers! They journey back to a lost world full of shallow seas and mysterious islands to uncover secrets of an ancient civilization. What they find could change everything they know about the past and the future.
Themes
Quick Assessment
This middle-grade science fiction novel follows Ross Murdock and his team as they travel back in time to investigate a vanished civilization on the planet Hawaika. Suitable for ages 9-12, the story encourages curiosity about history and time travel while presenting adventure and teamwork. The content is age-appropriate with no intense themes or violence.
Why we rated Key out of Time 9C
Key out of Time is written at a Level 4-5 reading level across 188 pages. Strong independent readers around grade 5.5 can typically handle this book on their own; with parent or teacher support, Key out of Time works for readers up to grade 6.5.
We rate Key out of Time 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, Key out of Time explores adventure, science & nature, time travel, 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, time travel.
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
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Details
Book Length
- ISBN
- 0839824246
- Pages
- 188
- Publisher
- Gregg Press
- Published
- 1978
- Type
- Fiction