Cargo
Jen Castleberry
Cargo
Age Rating, Reading Level & Content Guide
by Jen Castleberry
The text is written at a 4th 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
Cassidy bursts out of the bunker, heart pounding as gunshots echo nearby. The world outside is wild and dangerous, ruled by strange aliens and filled with unknown threats. Can she survive the journey to the mysterious Reservation, or will this be her last step into the unknown?
Quick Assessment
Set in a post-apocalyptic world controlled by extraterrestrials, this middle-grade novel follows 17-year-old Cassidy as she leaves the safety of her bunker to face dangers that include hostile survivors and environmental disasters. The story features themes of survival and adolescence, with some tense moments involving violence and peril. Suitable for ages 9-12, it offers fast-paced action balanced by a teenage romance, making it engaging for middle-grade readers interested in science fiction and adventure.
Why we rated Cargo 9ME
Cargo is written at a Level 4-5 reading level across 181 pages. Strong independent readers around grade 5.5 can typically handle this book on their own; with parent or teacher support, Cargo works for readers up to grade 6.5.
We rate Cargo as 9ME ("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, physical peril — these are the dimensions parents should evaluate against their reader's tolerance.
Specific content flags noted by reviewers: Mild Peril, Fantasy Violence, Survival Themes.
Thematically, Cargo explores survival, adventure, science & nature, 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 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 survival, adventure, science & nature.
Maybe not for
- ! Readers who get easily upset by emotional or moderately dark scenes — the conflict here is real, not just background flavor.
- ! 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
9ME — Moderate — EmotionalReal stakes and emotional weight. May include sustained danger, loss, or bullying.
Content Flags
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
- 9781523797271
- Pages
- 181
- Publisher
- Createspace Independent Publishing Platform
- Published
- 2016
- Type
- Fiction