Grey Sisters
Jo Treggiari
Grey Sisters
Age Rating, Reading Level & Content Guide
by Jo Treggiari
The text is written at a 6th grade reading level, the subject matter is intended for teens (ages 13+), and the content is gentle with no concerning themes.
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About This Book
Two years after a deadly plane crash, best friends D and Spider head into the mountains to face their grief. A gripping psychological thriller for fans of The Cheerleaders and Sadie. D and Spider have always been close friends, and they are further united in their shared heartbreak: they both lost siblings in a horrific plane crash two years earlier. A chance sighting of a beloved cuddly toy in a photograph of the only survivor spurs D to finally seek closure. She and Spider and their friend, Min, set off on a road trip to the mountainside site of that terrible crash. Ariel has lived on the mountain all her life. She and her extended family are looked down upon by neighboring townsfolk and she has learned to live by her wits, trusting few people outside of her isolated, survivalist community. A terrifying attack sends her down the mountain for help; on her way, she comes upon the three girls -- a chance encounter that will have far-reaching consequences for them all.
Quick Assessment
This is a Level 6 book. No notable content concerns flagged. Written for readers ages 13+.
Why we rated Grey Sisters Level 0
Grey Sisters is written at a Level 6 reading level across 288 pages. Strong independent readers around grade 7.0 can typically handle this book on their own; with parent or teacher support, Grey Sisters works for readers up to grade 8.0.
We rate Grey Sisters as Unrated because the content sits in the "Unrated" range — no conflict beyond everyday childhood experiences.
No specific content flags were raised by community reviewers, which is consistent with the unrated intensity score.
Good fit for
- ✓ Children in the Ages 13+ range — the maturity and attention span match the story's pacing.
- ✓ Patient readers who enjoy slower, character-driven stories.
Maybe not for
- ! Reluctant readers who need a fast hook — the pacing here rewards patience.
For Parents
Content Intensity
Level 0 — UnratedThis book has not yet been rated for content intensity.
Was our "Unrated" content intensity rating accurate for this book?
Reading Insights
Hook Factor
1/10A steady, thoughtful read that rewards patient readers.
Discussion Potential
1/10A lighter read — great for independent enjoyment.
Book DNA
Multi-dimensional content fingerprint
Details
Book Length
- ISBN
- 9780735263000
- Pages
- 288
- Publisher
- National Geographic Books
- Published
- 2020
- Type
- Fiction