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The Hunt for the Four Brothers

Franklin W. Dixon

Cover of The Hunt for the Four Brothers

The Hunt for the Four Brothers

Age Rating, Reading Level & Content Guide

Hardy Boys #155

by Franklin W. Dixon

Reading Level 4-5 9LE Ages 9-12 Balanced Read

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

What if a summer job turned into a thrilling mystery? Frank and Joe find themselves in the North Carolina mountains, where a routine adventure suddenly leads to a multimillion-dollar case. Can they uncover the truth before it's too late?

Quick Assessment

This middle-grade mystery follows brothers Frank and Joe as they take summer jobs in the mountains of North Carolina and become involved in a large-scale criminal investigation. Suitable for ages 9-12, the story features themes of teamwork, problem-solving, and suspense, with mild peril but no graphic content. It's an engaging read for kids who enjoy detective stories.

Why we rated The Hunt for the Four Brothers 9LE

The Hunt for the Four Brothers is written at a Level 4-5 reading level across 151 pages. Strong independent readers around grade 5.5 can typically handle this book on their own; with parent or teacher support, The Hunt for the Four Brothers works for readers up to grade 6.5.

We rate The Hunt for the Four Brothers as 9LE ("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, The Hunt for the Four Brothers explores mystery, adventure, family, and friendship — 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 mystery, adventure, family.

Maybe not for

  • ! Readers looking for something heavier — this is a gentle, low-stakes story by design.

For Parents

Content Intensity

9LE — Light — Emotional
Emotional
Light
Physical
Light
Social
Clear
Thematic
Light

Light conflict or tension. Mild peril resolved quickly.

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

2/10

A lighter read — great for independent enjoyment.

Book DNA

Multi-dimensional content fingerprint

Vocabulary Level
4
Emotional Weight
4
Theme Richness
4
World Scope
3
Data Confidence
7

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Details

Book Length

151 pages
ISBN
9780671025502
Pages
151
Publisher
Simon & Schuster/Paula Wiseman Books
Published
1999
Type
Fiction

Genres

Subjects

Hardy BoysSummer ResortsBrothersCriminalsMystery and Detective StoriesNorth Carolina

Places

North Carolina