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The Invasion book cover

The Invasion

by Katherine Applegate

2011

★★★★★

Easy read — content targets 4th–8th grade

Reading level 3.7 (3rd grade) but themes aimed at ages 9–14

3rd grade English Good and evil
208
Pages
3
AR Points
3.6h
Read time
AR Quiz Available

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Genre

Science Fiction

Themes

  • courage
  • friendship
  • identity
  • responsibility
  • secrecy
  • resistance and rebellion
  • good vs. evil
  • power and consequences

About this book

When Jake and his friends witness a dying alien’s crash, they’re given an incredible secret weapon: the power to morph into any animal they touch. With a hidden alien force quietly taking over human minds, the kids must decide if they’re brave enough to fight back while keeping their new abilities a secret. Fast-paced action, humor, and real moral choices make this a gripping start to the Animorphs saga. Ideal for middle graders who like sci-fi, teamwork, and high-stakes adventures.

Setting: present-day suburban America amid a covert alien invasion

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Frequently Asked Questions

Is The Invasion right for my child?

It depends — here's what to consider for The Invasion. The reading level is AR 3.7, which is typical for 3rd grade. The interest level is rated Middle Grades (4–8), meaning the themes and content are designed for ages 9–14 (4th–8th grade). Themes include courage, friendship, identity.

How long does it take to read The Invasion?

At a typical 3rd grade reading pace, The Invasion takes around 3.6h to finish. The book has 29,000 words. Slower or faster readers may vary significantly.

Does The Invasion have an AR quiz?

Yes — The Invasion has an AR quiz available, worth 3 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 The Invasion?

The Invasion has an AR reading level of 3.7, which places it at a 3rd grade reading difficulty. The interest level is rated Middle Grades (4–8) — 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.