What reading level is Zeroboxer?

Zeroboxer by Fonda Lee is at a Level 5-6 reading level (Lexile 870L). Recommended for Middle Grades readers (Ages 9-12).

What age is Zeroboxer appropriate for?

Zeroboxer is recommended for Ages 9-12. HootRating: 10LE (Light — Emotional).

What genre is Zeroboxer?

Zeroboxer is fiction — Young Adult Fiction.

Does Zeroboxer have any content warnings?

Zeroboxer has a HootRating of 10LE (Light — Emotional). No specific content flags noted. On HootRated, every book is rated across four dimensions — emotional, physical, social, and thematic — to help parents make informed choices.

How many pages is Zeroboxer?

Zeroboxer by Fonda Lee is 353 pages.

Reviewed by HootRated editorial · Last updated September 7, 2026

Zeroboxer

Fonda Lee

Zeroboxer

Age Rating, Reading Level & Content Guide

by Fonda Lee

Reading Level 5-6 10LE Ages 9-12 Balanced Read

The text is written at a 5th 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

The sharp clang of gloves echoes through the zero-gravity ring, where every move feels like flying. Carr Luka floats with skill and speed, but behind the bright lights, shadows of danger creep closer. When secrets start to unravel, will Carr’s dreams and friendships survive the fight?

Themes

Friendship Adventure SportsSecretsComing of Age

Quick Assessment

Zeroboxer follows Carr Luka, a talented young athlete excelling in the futuristic sport of zero-gravity boxing. As he rises in fame, he becomes entangled in a criminal plot that challenges his integrity and relationships. Suitable for readers ages 9-12, this middle grade novel explores themes of trust, ambition, and the consequences of choices without exposing readers to graphic content.

Why we rated Zeroboxer 10LE

Zeroboxer is written at a Level 5-6 reading level with a Lexile measure of 870L across 353 pages. Strong independent readers around grade 6.5 can typically handle this book on their own; with parent or teacher support, Zeroboxer works for readers up to grade 7.5.

We rate Zeroboxer as 10LE ("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, Zeroboxer explores friendship, adventure, sports, secrets, and coming of age — 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 friendship, adventure, sports.