The comet of doom
John Perritano
The comet of doom
Age Rating, Reading Level & Content Guide
by John Perritano
Illustrated by Laughead, Mike, illustrator
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
Did you know a comet is speeding toward Earth because of a sneaky scientist's wild invention? But the Kid Squad, with their brains and bravery, might just have the secret to stop it. And that's only the beginning of their thrilling adventure!
Themes
Quick Assessment
This middle-grade fiction follows a group of young heroes as they try to prevent a comet, redirected by a mad scientist, from colliding with Earth. The story blends science, teamwork, and adventure, suitable for readers aged 9-12, with themes of invention and heroism. It contains mild peril but is appropriate for its target audience.
Why we rated The comet of doom 9LE
The comet of doom is written at a Level 4-5 reading level across 112 pages. Strong independent readers around grade 5.5 can typically handle this book on their own; with parent or teacher support, The comet of doom works for readers up to grade 6.5.
We rate The comet of doom 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, The comet of doom explores science & nature, adventure, friendship, heroes, and inventions — 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 science & nature, adventure, friendship.
Maybe not for
- ! Reluctant readers who need a fast hook — the pacing here rewards patience.
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
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
- 9781624020384
- Pages
- 112
- Publisher
- Calico, an imprint of Magic Wagon
- Published
- 2015
- Type
- Fiction