Diabolical
Cynthia Leitich Smith
Diabolical
Age Rating, Reading Level & Content Guide
by Cynthia Leitich Smith
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
Zachary isn’t just any angel — he’s slipped through heaven’s gates into a boarding school where werewolves roam and monsters lurk in the shadows. With demon dogs on their trail and walls that seem alive, every moment is a battle for survival. Can Zachary and his friends outsmart the darkness before it’s too late?
Quick Assessment
Diabolical blends fantasy and suspense as it follows angel Zachary and werewolf Kieren navigating a perilous lockdown at a mysterious boarding school. Suitable for middle-grade readers, the story includes supernatural elements, mild peril, and themes of friendship and bravery. Parents should note some intense fantasy violence and frightening creatures within the narrative.
Why we rated Diabolical 12ME
Diabolical is written at a Level 7 reading level across 349 pages. Strong independent readers around grade 8.0 can typically handle this book on their own; with parent or teacher support, Diabolical works for readers up to grade 9.0.
We rate Diabolical 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.
No specific content flags were raised by community reviewers, which is consistent with the moderate intensity score.
Thematically, Diabolical explores fantasy world-building, adventure, 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 fantasy world-building, adventure, friendship.
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
- 9780763651183
- Pages
- 349
- Publisher
- National Geographic Books
- Published
- 2012
- Type
- Fiction