The lab
Jack Heath
The lab
Age Rating, Reading Level & Content Guide
by Jack Heath
The text is written at a 7th 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 you were the strongest agent in a world where justice is just a game? Imagine being Six of Hearts, a superhuman teen fighting corruption with every daring mission. But when the stakes rise higher than ever, can Six save the day before everything falls apart?
Quick Assessment
This middle-grade science fiction adventure follows Six of Hearts, a genetically enhanced 16-year-old agent working for The Deck, a secret organization battling corruption. The story explores themes of justice and genetic engineering, suitable for readers ages 9-12 who enjoy fast-paced and imaginative fiction. Parents should note the presence of action and moral complexity within a futuristic setting.
Why we rated The lab 12ME
The lab is written at a Level 7 reading level across 311 pages. Strong independent readers around grade 8.0 can typically handle this book on their own; with parent or teacher support, The lab works for readers up to grade 9.0.
We rate The lab 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, thematic difficulty — these are the dimensions parents should evaluate against their reader's tolerance.
No specific content flags were raised by community reviewers, which is consistent with the moderate intensity score.
Thematically, The lab explores adventure, science & nature, fantasy world-building, 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, fantasy world-building.
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.
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
- 9780545068604
- Pages
- 311
- Publisher
- Scholastic Press
- Published
- 2008
- Type
- Fiction