Thunder
Bonnie S. Calhoun
Thunder
Age Rating, Reading Level & Content Guide
A Novel
by Bonnie S. Calhoun
The text is written at a 8th 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
What if the land you knew was gone, and the people you hunted suddenly became the ones chasing you? Selah crouches in the tall grass, searching for mysterious visitors from across the sea, but when a strange mark appears on her skin, everything changes. Now, she must decide who to trust in a world filled with secrets and danger.
Quick Assessment
Set in a post-apocalyptic America, this middle-grade science fiction story follows Selah, a young girl navigating a harsh world where survival means making difficult choices. The novel explores themes of trust, identity, and resilience with some mild peril and complex social dynamics, appropriate for readers ages 9-12. Parents should note the presence of tension related to hunting and capture scenarios, though handled thoughtfully within the story.
Why we rated Thunder 12ME
Thunder is written at a Level 8 reading level across 432 pages. Strong independent readers around grade 9.0 can typically handle this book on their own; with parent or teacher support, Thunder works for readers up to grade 10.0.
We rate Thunder as 12ME ("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, Fear & Anxiety.
Thematically, Thunder explores adventure, science & nature, survival, 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 adventure, science & nature, survival.
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
12ME — 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
- 9781441220530
- Pages
- 432
- Publisher
- Revell
- Published
- 2014
- Type
- Fiction