What reading level is A Killing in the Market (Hardy Boys Casefiles, # 18)?

A Killing in the Market (Hardy Boys Casefiles, # 18) by Franklin W. Dixon is at a Level 4-5 reading level. Recommended for Middle Grades readers (Ages 9-12).

What age is A Killing in the Market (Hardy Boys Casefiles, # 18) appropriate for?

A Killing in the Market (Hardy Boys Casefiles, # 18) is recommended for Ages 9-12. HootRating: 9ME (Moderate — Emotional). Content flags: Mild Peril, Emotional: Fear & Anxiety.

What genre is A Killing in the Market (Hardy Boys Casefiles, # 18)?

A Killing in the Market (Hardy Boys Casefiles, # 18) is fiction. Part of the Hardy Boys Casefiles series.

Does A Killing in the Market (Hardy Boys Casefiles, # 18) have any content warnings?

A Killing in the Market (Hardy Boys Casefiles, # 18) has a HootRating of 9ME (Moderate — Emotional). Content flags include: Mild Peril, Emotional: Fear & Anxiety. On HootRated, every book is rated across four dimensions — emotional, physical, social, and thematic — to help parents make informed choices.

How many pages is A Killing in the Market (Hardy Boys Casefiles, # 18)?

A Killing in the Market (Hardy Boys Casefiles, # 18) by Franklin W. Dixon is 150 pages (approximately 29,383 words).

Reviewed by HootRated editorial · Last updated May 18, 2026

A Killing in the Market (Hardy Boys Casefiles, # 18)

Franklin W. Dixon

A Killing in the Market (Hardy Boys Casefiles, # 18)

Age Rating, Reading Level & Content Guide

by Franklin W. Dixon

Hardy Boys Casefiles

Reading Level 4-5 9ME Ages 9-12 Matched Page-Turner

The text is written at a 4th grade reading level, the subject matter is intended for middle graders (ages 9–12), and the content has moderate intensity with some emotionally heavy themes.

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About This Book

Frank and Joe Hardy dive into a puzzling case when Cyril Bayard, an investment advisor with a mysterious past, suddenly vanishes. As they follow clues and uncover secrets, they must protect their family’s future while solving the mystery. Danger and suspense await around every corner in this thrilling detective adventure.

Themes

Mystery Family AdventureDetective Stories

Quick Assessment

This is a Level 4-5 book with moderate content intensity. Content themes include mild peril, emotional: fear & anxiety. Written for readers ages 9-12.

Why we rated A Killing in the Market (Hardy Boys Casefiles, # 18) 9ME

A Killing in the Market (Hardy Boys Casefiles, # 18) is written at a Level 4-5 reading level across 150 pages (approximately 29,383 words). Strong independent readers around grade 5.8 can typically handle this book on their own; with parent or teacher support, A Killing in the Market (Hardy Boys Casefiles, # 18) works for readers up to grade 6.8.

Read aloud, A Killing in the Market (Hardy Boys Casefiles, # 18) runs about 3.3 hours — long enough to span several bedtime sessions.

We rate A Killing in the Market (Hardy Boys Casefiles, # 18) as 9ME ("Moderate — Emotional") because the content sits in the "Moderate" range — moderate conflict that may involve loss, scary scenes, or interpersonal stakes. The strongest signals come from emotional weight, physical peril — these are the dimensions parents should evaluate against their reader's tolerance.

Specific content flags noted by reviewers: Mild Peril, Emotional: Fear & Anxiety.

Thematically, A Killing in the Market (Hardy Boys Casefiles, # 18) explores mystery, family, adventure, and detective stories — 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 mystery, family, adventure.
✓ Readers who fall hard for one book and want a long series to live in — there are 4 more books in the Hardy Boys Casefiles series.