Reviewed by HootRated editorial · Last updated
Secret of the Forbidden City
James Patterson, Chris Grabenstein
Secret of the Forbidden City
Age Rating, Reading Level & Content Guide
by James Patterson, Chris Grabenstein
Illustrated by Neufeld, Juliana, 1982- illustrator
Treasure Hunters (Little, Brown)
The text is written at a 4th 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
Bick and Beck Kidd embark on a thrilling quest across China and Berlin to save their mother from dangerous pirates. Their mission to recover a priceless artifact quickly turns into a race to find stolen Nazi treasure, testing their bravery and cleverness at every turn. Together, the siblings must outsmart villains and face daring challenges to bring their family back together.
Quick Assessment
This is a Level 4-5 book with mild content intensity. Content themes include mild peril, physical danger. Written for readers ages 9-12.
Why we rated Secret of the Forbidden City 9LP
Secret of the Forbidden City is written at a Level 4-5 reading level with a Lexile measure of 690L across 419 pages (approximately 37,582 words). Strong independent readers around grade 5.6 can typically handle this book on their own; with parent or teacher support, Secret of the Forbidden City works for readers up to grade 6.6.
Read aloud, Secret of the Forbidden City runs about 4.2 hours — long enough to span several bedtime sessions.
We rate Secret of the Forbidden City as 9LP ("Light — 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, Physical Danger.
Thematically, Secret of the Forbidden City explores adventure, family, brothers and sisters, buried treasure, and missing persons — 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.
- ✓ Reluctant readers who need fast-paced, hook-heavy stories to stay engaged.
- ✓ Kids drawn to stories about adventure, family, brothers and sisters.
- ✓ Readers who fall hard for one book and want a long series to live in — there are 7 more books in the Treasure Hunters (Little, Brown) series.
Maybe not for
- ! Readers looking for something heavier — this is a gentle, low-stakes story by design.
For Parents
Content Intensity
9LP — Light — PhysicalLight conflict or tension. Mild peril resolved quickly.
Content Flags
Was our "Mild" content intensity rating accurate for this book?
Reading Insights
Hook Factor
7/10High engagement — fast-paced, fun, and hard to put down. Great for reluctant readers.
Discussion Potential
2/10A lighter read — great for independent enjoyment.
Book DNA
Multi-dimensional content fingerprint
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Details
Book Length
- ISBN
- 9780316284806
- Pages
- 419
- Publisher
- Little, Brown
- Published
- 2015-09
- Type
- Fiction
- Word Count
- 37,582
- Lexile
- 690L
- Read-Aloud
- ~4h 11m
- Text Density
- Light Text