What reading level is Alien investigation?

Alien investigation by Kelly Milner Halls is at a Level 9-10 reading level (Lexile 1240L). Recommended for Middle Grades readers (Ages 9-12).

What age is Alien investigation appropriate for?

Alien investigation is recommended for Ages 9-12. HootRating: 14C (Clear).

What genre is Alien investigation?

Alien investigation is nonfiction — Juvenile Nonfiction.

Does Alien investigation have any content warnings?

Alien investigation has a HootRating of 14C (Clear). 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 Alien investigation?

Alien investigation by Kelly Milner Halls is 68 pages.

Reviewed by HootRated editorial · Last updated July 16, 2026

Alien investigation

Kelly Milner Halls

Alien investigation

Age Rating, Reading Level & Content Guide

Searching for the Truth about UFOs and Aliens

by Kelly Milner Halls

Reading Level 9-10 14C Ages 9-12 Sweet Spot

The text is written at a 9th grade reading level, the subject matter is intended for middle graders (ages 9–12), and the content is gentle with no concerning themes.

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About This Book

A low hum buzzes through the night air, and a strange glow flickers just beyond the trees. Whispers of mysterious lights and shadowy figures fill the sky, sparking questions no one can easily answer. What secrets do the stars hold, and could we really be alone in the universe?

Themes

Science & Nature Adventure Mystery

Quick Assessment

This middle-grade fiction book explores the fascinating topic of UFOs and extraterrestrial life through a mix of eyewitness stories and expert interviews. Suitable for children aged 9 to 12, it encourages curiosity about space and the unknown while presenting information in an engaging, age-appropriate way. Parents should note the speculative nature of the content, which blends fact with imaginative elements.

Why we rated Alien investigation 14C

Alien investigation is written at a Level 9-10 reading level with a Lexile measure of 1240L across 68 pages. Strong independent readers around grade 10.5 can typically handle this book on their own; with parent or teacher support, Alien investigation works for readers up to grade 11.5.

We rate Alien investigation as 14C ("Clear") because the content sits in the "Gentle" range — no conflict beyond everyday childhood experiences. Across our four dimensions (emotional, physical, social, thematic) the book reads as evenly gentle; no single dimension stands out as a concern.

No specific content flags were raised by community reviewers, which is consistent with the gentle intensity score.

Thematically, Alien investigation explores science & nature, adventure, and mystery — 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.
✓ Kids drawn to stories about science & nature, adventure, mystery.
✓ Curious kids who prefer real-world topics over made-up stories.

Maybe not for

! Readers whose emotional readiness lags behind their decoding skills — this book's intensity outruns its reading level, a classic "gifted kid" mismatch.