What reading level is The Ultra violets?

The Ultra violets by Sophie Bell is at a Level 5-6 reading level (Lexile 820L). Recommended for Middle Grades readers (Ages 9-12).

What age is The Ultra violets appropriate for?

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

What genre is The Ultra violets?

The Ultra violets is fiction — Juvenile Fiction.

Does The Ultra violets have any content warnings?

The Ultra violets 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 The Ultra violets?

The Ultra violets by Sophie Bell is 327 pages.

Reviewed by HootRated editorial · Last updated September 7, 2026

The Ultra violets

Sophie Bell

The Ultra violets

Age Rating, Reading Level & Content Guide

by Sophie Bell

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

What if a simple science experiment could turn you into a superhero? Cheri, Scarlet, Opaline, and Iris discover their incredible powers after their moms' secret lab work goes unexpectedly wrong. Now, they must learn to use their gifts while keeping their identities hidden—can they protect their city and each other?

Themes

Human geneticsFriendshipJuvenile fictionGirlsSuperheroesAdventure

Quick Assessment

This middle-grade fiction follows four girls who gain superpowers from a genetics experiment conducted by their scientist mothers. It explores themes of friendship, responsibility, and science in a kid-friendly way suitable for ages 9-12. The story has light fantasy elements and positive messages about teamwork and courage.

Why we rated The Ultra violets 10LE

The Ultra violets is written at a Level 5-6 reading level with a Lexile measure of 820L across 327 pages. Strong independent readers around grade 6.5 can typically handle this book on their own; with parent or teacher support, The Ultra violets works for readers up to grade 7.5.

We rate The Ultra violets 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, The Ultra violets explores human genetics, friendship, juvenile fiction, girls, and superheroes — 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.
✓ Patient readers who enjoy slower, character-driven stories.
✓ Kids drawn to stories about human genetics, friendship, juvenile fiction.