What reading level is Ultraviolet (Ultraviolet, #1)?

Ultraviolet (Ultraviolet, #1) by R. J. Anderson is at a Level 6 reading level (Lexile 900L). Recommended for Middle Grades Plus readers (Ages 11+).

What age is Ultraviolet (Ultraviolet, #1) appropriate for?

Ultraviolet (Ultraviolet, #1) is recommended for Ages 11+. HootRating: 11ME (Moderate — Emotional). Content flags: Emotional: Mental Health, Emotional: Fear & Anxiety, Emotional: Loss & Grief, Physical/Safety: Mild Peril.

What genre is Ultraviolet (Ultraviolet, #1)?

Ultraviolet (Ultraviolet, #1) is fiction — Juvenile Fiction. Part of the Carolrhoda YA series.

How many pages is Ultraviolet (Ultraviolet, #1)?

Ultraviolet (Ultraviolet, #1) by R. J. Anderson is 316 pages (approximately 81,734 words).

Reviewed by HootRated editorial · Last updated May 18, 2026

Ultraviolet (Ultraviolet, #1)

R. J. Anderson

Ultraviolet (Ultraviolet, #1)

Q: Does Ultraviolet (Ultraviolet, #1) have any content warnings?

Ultraviolet (Ultraviolet, #1) has a HootRating of 11ME (Moderate — Emotional). Content flags include: Emotional: Mental Health, Emotional: Fear & Anxiety, Emotional: Loss & Grief, Physical/Safety: Mild Peril. On HootRated, every book is rated across four dimensions — emotional, physical, social, and thematic — to help parents make informed choices.

Age Rating, Reading Level & Content Guide

by R. J. Anderson

Carolrhoda YA

Reading Level 6 11ME Ages 11+ Matched

The text is written at a 6th grade reading level, the subject matter is intended for older middle graders (ages 11+), and the content has moderate intensity with some emotionally heavy themes.

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About This Book

Alison, a nearly seventeen-year-old girl who experiences the world through her unique sensory gift called synesthesia, faces a bewildering challenge when she is taken to a psychiatric hospital accused of a mysterious crime. As she struggles to prove her innocence, Alison must navigate complex emotions and the blurred lines between reality and perception in this gripping sci-fi adventure.

Themes

Science & Nature MysteryEmotional ProblemsComing of AgeExtraterrestrial Beings

Quick Assessment

This is a Level 6 book with moderate content intensity. Content themes include emotional: mental health, emotional: fear & anxiety, emotional: loss & grief. Written for readers ages 11+.

Why we rated Ultraviolet (Ultraviolet, #1) 11ME

Ultraviolet (Ultraviolet, #1) is written at a Level 6 reading level with a Lexile measure of 900L across 316 pages (approximately 81,734 words). Strong independent readers around grade 7.0 can typically handle this book on their own; with parent or teacher support, Ultraviolet (Ultraviolet, #1) works for readers up to grade 8.0.

Read aloud, Ultraviolet (Ultraviolet, #1) runs about 9.1 hours — long enough to span several bedtime sessions.

We rate Ultraviolet (Ultraviolet, #1) as 11ME ("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: Emotional: Mental Health, Emotional: Fear & Anxiety, Emotional: Loss & Grief, Physical/Safety: Mild Peril.

Thematically, Ultraviolet (Ultraviolet, #1) explores science & nature, mystery, emotional problems, coming of age, and extraterrestrial beings — these threads give the book room to mean different things to different readers.

Good fit for

✓ Children in the Ages 11+ range — the maturity and attention span match the story's pacing.
✓ Kids drawn to stories about science & nature, mystery, emotional problems.

Maybe not for

! Readers who get easily upset by emotional or moderately dark scenes — the conflict here is real, not just background flavor.
! Children currently coping with grief — the themes may hit close to home.