Invisible
by James Patterson, David Ellis
Little, Brown 2014
Easy read — content targets 9th–12th grade
Reading level 4.5 (4th grade) but themes aimed at ages 14+
Themes include grief and trauma
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Genre
Themes
- serial killers
- obsession and fixation
- gaslighting and credibility
- grief and trauma
- FBI and criminal investigation
- arson and forensic evidence
- trust and betrayal
- conspiracy and cover-ups
About this book
FBI researcher Emmy Dockery is convinced a vast pattern links scores of seemingly unrelated deaths across the United States—victims written off as accidents, overdoses, and suicides. Haunted by the fiery death of her sister, Emmy obsessively hunts a perpetrator no one else believes exists, not even her ex, field agent Harrison "Books" Bookman. As Emmy closes in, a chilling mastermind who hides in plain sight stays one step ahead, turning an off-the-books inquiry into a deadly thriller of arson, abduction, and relentless suspense.
Setting: Contemporary United States; multiple cities and crime scenes; FBI offices and arson investigation sites
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Frequently Asked Questions
Is Invisible right for my child?
It depends — here's what to consider for Invisible. The reading level is AR 4.5, which is typical for 4th grade. The interest level is rated Upper Grades (9–12), meaning the themes and content are designed for ages 14+ (9th–12th grade). Themes include serial killers, obsession and fixation, gaslighting and credibility.
How long does it take to read Invisible?
At a typical 4th grade reading pace, Invisible takes around 11h to finish. The book has 95,000 words. Slower or faster readers may vary significantly.
Does Invisible have an AR quiz?
Yes — Invisible has an AR quiz available, worth 14 points. Your child will need to take and pass the quiz through their school's Accelerated Reader program to earn credit. The quiz is typically 5–20 multiple choice questions about plot, characters, and setting.
What grade level is Invisible?
Invisible has an AR reading level of 4.5, which places it at a 4th grade reading difficulty. The interest level is rated Upper Grades (9–12) — this reflects the age-appropriateness of the content and themes, not just the reading difficulty. A strong younger reader may handle the words fine while the themes are aimed at an older audience, or vice versa.