What reading level is Rotten?

Rotten by Michael Northrop is at a Level 3-4 reading level (Lexile 670L). Recommended for Lower Grades readers (Ages 5-8).

What age is Rotten appropriate for?

Rotten is recommended for Ages 5-8. HootRating: 8ME (Moderate — Emotional). Content flags: Animal Abuse, Juvenile Delinquency.

Does Rotten have any content warnings?

Rotten has a HootRating of 8ME (Moderate — Emotional). Content flags include: Animal Abuse, Juvenile Delinquency. On HootRated, every book is rated across four dimensions — emotional, physical, social, and thematic — to help parents make informed choices.

How many pages is Rotten?

Rotten by Michael Northrop is 246 pages.

Reviewed by HootRated editorial · Last updated September 7, 2026

Rotten

Michael Northrop

Rotten

Age Rating, Reading Level & Content Guide

by Michael Northrop

Reading Level 3-4 8ME Ages 5-8 Heads Up

The text is written at a 3rd grade reading level, the subject matter is intended for younger children (ages 5–8), and the content has moderate intensity with some emotionally heavy themes.

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About This Book

Have you ever wondered what secrets a dog might hold? JD comes home to find a big, tough Rottweiler named Johnny Rotten, but their bond is shaky from the start. What will it take for them to trust each other?

Themes

Juvenile DelinquencyAnimal RescueTrust and HealingFriendship

Quick Assessment

This juvenile fiction follows sixteen-year-old JD as he returns home from a mysterious summer and forms a challenging relationship with an abused Rottweiler his mother adopts. The story explores themes of trust, trauma, and juvenile delinquency, suitable for middle-grade readers around ages 11 and up despite the listed reading level. Parents should be aware of themes involving troubled youth and animal abuse.

Why we rated Rotten 8ME

Rotten is written at a Level 3-4 reading level with a Lexile measure of 670L across 246 pages. Strong independent readers around grade 4.5 can typically handle this book on their own; with parent or teacher support, Rotten works for readers up to grade 5.5.

We rate Rotten as 8ME ("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, social complexity — these are the dimensions parents should evaluate against their reader's tolerance.

Specific content flags noted by reviewers: Animal Abuse, Juvenile Delinquency.

Thematically, Rotten explores juvenile delinquency, animal rescue, trust and healing, and friendship — these threads give the book room to mean different things to different readers.

Good fit for

✓ Children in the Ages 5-8 range — the maturity and attention span match the story's pacing.
✓ Patient readers who enjoy slower, character-driven stories.
✓ Kids drawn to stories about juvenile delinquency, animal rescue, trust and healing.

Maybe not for

! Readers who get easily upset by emotional or moderately dark scenes — the conflict here is real, not just background flavor.
! Reluctant readers who need a fast hook — the pacing here rewards patience.