Olivia Kidney and the Secret Beneath the City (Olivia Kidney)
Ellen Potter
Olivia Kidney and the Secret Beneath the City (Olivia Kidney)
Age Rating, Reading Level & Content Guide
by Ellen Potter
The text is written at a 7th grade reading level, the subject matter is intended for middle graders (ages 9–12), and the content is mild with minimal sensitive material.
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About This Book
What if moving to a new school meant diving into a secret world beneath the city? Imagine exploring the dark tunnels of the New York City subway where ghosts aren’t the biggest danger. Olivia’s adventure has just begun, but the real mystery could change everything!
Themes
Quick Assessment
This middle-grade novel follows Olivia Kidney, a girl with the rare ability to communicate with ghosts, as she navigates a prestigious art school in Manhattan. When helping a new friend leads her into the mysterious subway tunnels, Olivia faces unexpected challenges beyond her supernatural gift. Suitable for ages 9-12, the book blends humor, adventure, and mild spooky elements without intense scares.
Why we rated Olivia Kidney and the Secret Beneath the City (Olivia Kidney) 12LE
Olivia Kidney and the Secret Beneath the City (Olivia Kidney) is written at a Level 7 reading level across 327 pages. Strong independent readers around grade 8.0 can typically handle this book on their own; with parent or teacher support, Olivia Kidney and the Secret Beneath the City (Olivia Kidney) works for readers up to grade 9.0.
We rate Olivia Kidney and the Secret Beneath the City (Olivia Kidney) as 12LE ("Light — Emotional") 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.
No specific content flags were raised by community reviewers, which is consistent with the mild intensity score.
Thematically, Olivia Kidney and the Secret Beneath the City (Olivia Kidney) explores friendship, adventure, humor, school, and supernatural — 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 friendship, adventure, humor.
Maybe not for
- ! Readers whose emotional readiness lags behind their decoding skills — this book's intensity outruns its reading level, a classic "gifted kid" mismatch.
For Parents
Content Intensity
12LE — Light — EmotionalLight conflict or tension. Mild peril resolved quickly.
Was our "Mild" content intensity rating accurate for this book?
Reading Insights
Hook Factor
3/10A steady, thoughtful read that rewards patient readers.
Discussion Potential
1/10A lighter read — great for independent enjoyment.
Book DNA
Multi-dimensional content fingerprint
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Details
Book Length
- ISBN
- 9780399247019
- Pages
- 327
- Publisher
- Penguin Group
- Published
- June 21, 2007
- Type
- Fiction