Reviewed by HootRated editorial · Last updated
Mrs. Frisby and the Rats of Nimh/Newbery Summer
Robert C. O'Brien
Mrs. Frisby and the Rats of Nimh/Newbery Summer
Age Rating, Reading Level & Content Guide
by Robert C. O'Brien
The text is written at a 6th grade reading level, the subject matter is intended for middle graders (ages 9–12), and the content is mild with minimal sensitive material. Its HootRating code, LP, means mild content, mostly physical.
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About This Book
Mrs. Frisby isn’t just any mouse—she’s brave enough to face a ticking clock and a mysterious underground world of super-smart rats. These rats aren’t ordinary—they’ve escaped science experiments and hold secrets that could save her family. What happens when courage meets cleverness in a race against time?
Themes
Quick Assessment
This Newbery Medal-winning novel follows Mrs. Frisby, a widowed mouse who must protect her family by seeking help from highly intelligent rats living beneath a rosebush. The story explores themes of bravery, problem-solving, and cooperation, well-suited for readers ages 9-12. It contains mild peril but no graphic content, making it an excellent choice for middle-grade readers interested in classic adventure and animal characters.
Why we rated Mrs. Frisby and the Rats of Nimh/Newbery Summer LP (Mild)
Mrs. Frisby and the Rats of Nimh/Newbery Summer is written at a Level 6 reading level across 240 pages. Reading-wise, most kids in grade 7 and up can manage Mrs. Frisby and the Rats of Nimh/Newbery Summer on their own; younger readers can enjoy it with a parent or teacher reading along.
We rate Mrs. Frisby and the Rats of Nimh/Newbery Summer as LP (Mild, mostly physical) because the content sits in the "Mild" range — mild conflict — the kind a child encounters in normal play and sibling life. Across our four dimensions (emotional, physical, social, thematic) the book reads as evenly mild; no single dimension stands out as a concern.
Specific content flags noted by reviewers: Mild Peril.
Thematically, Mrs. Frisby and the Rats of Nimh/Newbery Summer explores adventure, family, friendship, animal characters, and classics — 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.
- ✓ Kids drawn to stories about adventure, family, friendship.
Maybe not for
- ! Readers looking for something heavier — this is a gentle, low-stakes story by design.
For Parents
Content Intensity
LP · Mild · PhysicalReading 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
Light conflict or tension. Mild peril resolved quickly.
Content Flags
Was our "Mild" content intensity rating accurate for this book?
Reading Insights
Discussion Potential
2/10A lighter read — great for independent enjoyment.
Book DNA
Multi-dimensional content fingerprint
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Details
Book Length
- ISBN
- 9780689862205
- Pages
- 240
- Publisher
- Aladdin Paperbacks
- Published
- May 1, 2003
- Type
- Fiction