Infected

Name: Infected
Author: Sophie Littlefield
ISBN: 9780385741064

Age Rating, Reading Level & Content Guide

by Sophie Littlefield

Reading Level 6-7 MP · Moderate · Physical Ages 13+ Balanced Read

The text is written at a 6th grade reading level, the subject matter is intended for teens (ages 13+), and the content has moderate intensity with some emotionally heavy themes. Its HootRating code, MP, means moderate content, mostly physical.

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About This Book

Carina’s heart races as she wakes up feeling strange and weak. The clock is ticking—she has only thirty-six hours to decode her family’s mysterious puzzles before the deadly drug inside her takes over. With her boyfriend by her side, can they unlock the secrets in time or will everything be lost?

Themes

PuzzlesSurvivalSecretsDatingJuvenile Fiction

Quick Assessment

Seventeen-year-old Carina has thirty-six hours to solve puzzles tied to her late mother's and uncle's secret research, or a performance-enhancing drug injected into her will kill her, and her boyfriend's life is at stake too. Expect a fast-paced, high-stakes thriller with a ticking-clock threat, the deaths of two family members, and light romantic tension between teens. Peril is the main concern, with moderate intensity and no graphic violence.

Why we rated Infected MP (Moderate)

Infected is written at a Level 6-7 reading level across 242 pages. Upper Grades (Ages 13+) is the typical interest range for this book — readers in that age band have the maturity and attention span suited to the story, separate from whether they can decode the words.

We rate Infected as MP (Moderate, mostly physical) 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, thematic difficulty — these are the dimensions parents should evaluate against their reader's tolerance.

Specific content flags noted by reviewers: Mild Peril.

Thematically, Infected explores puzzles, survival, secrets, dating, and juvenile fiction — these threads give the book room to mean different things to different readers.

Good fit for

✓ Children in the Ages 13+ range — the maturity and attention span match the story's pacing.
✓ Kids drawn to stories about puzzles, survival, secrets.

Maybe not for

! Readers who get easily upset by emotional or moderately dark scenes — the conflict here is real, not just background flavor.

For Parents

Content Intensity

MP · Moderate · Physical

Emotional

Moderate

Physical

Moderate ←

Social

Mild

Thematic

Moderate

Reading the HootRating code: the first letter is the content intensity (C = Gentle · L = Mild · M = Moderate · I = Intense · V = Very Intense); the second, when there is one, is the kind of content that drives it (E = Emotional · P = Physical · S = Social · T = Thematic). Reading level and age range are rated separately. How we rate

Real stakes and emotional weight. May include sustained danger, loss, or bullying.