The 39 Clues

Riley Clifford

Cover of The 39 Clues

The 39 Clues

Age Rating, Reading Level & Content Guide

Rapid Fire

by Riley Clifford

Reading Level 6 Mild (Lvl 2) Ages 9-12 Balanced Read

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.

We may earn a commission from these links. Bookshop.org supports independent bookstores with every purchase.

About This Book

Flames lick the night sky as Washington burns—can you escape the chaos with a young Cahill? Magic sparkles as Houdini reveals a secret trick that might save his life, but what if it’s not enough? Deep beneath the ocean, a daring mission on the world’s first nuclear submarine puts everything on the line. What hidden dangers lie ahead?

Quick Assessment

This middle-grade adventure book features three thrilling stories centered around the powerful Cahill family, intertwined with significant historical events. Suitable for ages 9-12, the stories include mild peril and suspense but no graphic content. The book encourages curiosity about history through action-packed fictional tales.

For Parents

Content Intensity

Level 2 — Mild
Gentle Mild Moderate Intense Very Intense

Light conflict or tension. Mild peril resolved quickly.

Content Flags

Mild Peril
Data confidence: standard

Was our "Mild" content intensity rating accurate for this book?

Reading Insights

Hook Factor

3/10

A steady, thoughtful read that rewards patient readers.

Discussion Potential

3/10

A lighter read — great for independent enjoyment.

Book DNA

Multi-dimensional content fingerprint

Vocabulary Level
5
Emotional Weight
4
Theme Richness
5
World Scope
1
Data Confidence
7

Similar Books

Based on content and theme analysis

See all books like this →

Details

Book Length

257 pages
ISBN
9780545522878
Pages
257
Publisher
Scholastic Inc.
Published
2011-01-10
Type
Fiction

Genres

Subjects

Subjects