Reviewed by HootRated editorial · Last updated
Calvin
Martine Leavitt
Calvin
Age Rating, Reading Level & Content Guide
A Novel
by Martine Leavitt
The text is written at a 3rd grade reading level, the subject matter is intended for teens (ages 13+), and the content has moderate intensity with some emotionally heavy themes. Its HootRating code, ME, means moderate content, mostly emotional.
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About This Book
The quiet rustle of pages turns as Calvin talks to a tiger only he can see. The smell of old comics fills the air, wrapping him in a world where imagination and reality blur. Sometimes, the most colorful friends live inside your mind.
Themes
Quick Assessment
Seventeen-year-old Calvin, who has schizophrenia, sees his stuffed-tiger childhood companion Hobbes return as a delusion he cannot control, and he sets out on a dangerous winter trek across frozen Lake Erie with his friend Susie. The book portrays hallucinations, a teen's struggle to understand his illness, and the fear and confusion that come with it, so it works best for readers who can handle serious mental health material. Parents may want to talk through the risky journey and the emotional weight of Calvin's condition with their teen.
Why we rated Calvin ME (Moderate)
Calvin is written at a Level 3-4 reading level across 181 pages. Upper Grades (Ages 13+) is the typical interest range for this book — readers in that age band have the maturity and attention span suited to the story, separate from whether they can decode the words.
We rate Calvin as ME (Moderate, mostly 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 — these are the dimensions parents should evaluate against their reader's tolerance.
Specific content flags noted by reviewers: Mental Illness.
Thematically, Calvin explores mental health, friendship, coming of age, imagination, and characters in literature — these threads give the book room to mean different things to different readers.
Good fit for
- ✓ Children in the Ages 13+ range — the maturity and attention span match the story's pacing.
- ✓ Kids drawn to stories about mental health, friendship, coming of age.
Maybe not for
- ! Readers who get easily upset by emotional or moderately dark scenes — the conflict here is real, not just background flavor.
For Parents
Content Intensity
ME · Moderate · EmotionalReading the HootRating code: the first letter is the content intensity (C = Gentle · L = Mild · M = Moderate · I = Intense · V = Very Intense); the second, when there is one, is the kind of content that drives it (E = Emotional · P = Physical · S = Social · T = Thematic). Reading level and age range are rated separately. How we rate
Real 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
Discussion Potential
3/10A lighter read — great for independent enjoyment.
Book DNA
Multi-dimensional content fingerprint
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Details
Book Length
- ISBN
- 9780374380731
- Pages
- 181
- Publisher
- Macmillan
- Published
- 2015
- Type
- Fiction