What reading level is Only Alien on the Planet?

Only Alien on the Planet by Kristen Randle is at a Level 6 reading level. Recommended for Middle Grades readers (Ages 9-12).

What age is Only Alien on the Planet appropriate for?

Only Alien on the Planet is recommended for Ages 9-12. HootRating: 11LE (Light — Emotional).

What genre is Only Alien on the Planet?

Only Alien on the Planet is fiction — Juvenile Fiction.

Does Only Alien on the Planet have any content warnings?

Only Alien on the Planet has a HootRating of 11LE (Light — Emotional). 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 Only Alien on the Planet?

Only Alien on the Planet by Kristen Randle is 240 pages.

Reviewed by HootRated editorial · Last updated July 16, 2026

Only Alien on the Planet

Kristen Randle

Only Alien on the Planet

Age Rating, Reading Level & Content Guide

by Kristen Randle

Reading Level 6 11LE Ages 9-12 Balanced Read

ALA Best Book for Young Adults

The text is written at a 6th grade reading level, the subject matter is intended for middle graders (ages 9–12), and the content is mild with minimal sensitive material.

Buy on Amazon Listen on Audible

We may earn a commission from these links. Bookshop.org supports independent bookstores with every purchase.

About This Book

Ginny is the only one brave enough to befriend the quiet boy who never says a word. But what if his silence hides a secret that could change everything? Finding out might be the key to understanding true friendship.

Themes

FriendshipEmotionsSchoolsMoving

Quick Assessment

This middle-grade fiction explores themes of friendship, emotions, and adjusting to new environments through the story of Ginny, who reaches out to a silent classmate. Suitable for ages 9-12, the book gently addresses social challenges and emotional growth without intense content. It encourages empathy and connection among young readers navigating school and personal change.

Why we rated Only Alien on the Planet 11LE

Only Alien on the Planet is written at a Level 6 reading level across 240 pages. Strong independent readers around grade 7.0 can typically handle this book on their own; with parent or teacher support, Only Alien on the Planet works for readers up to grade 8.0.

We rate Only Alien on the Planet as 11LE ("Light — Emotional") because the content sits in the "Mild" range — mild conflict — the kind a child encounters in normal play and sibling life. Across our four dimensions (emotional, physical, social, thematic) the book reads as evenly mild; no single dimension stands out as a concern.

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

Thematically, Only Alien on the Planet explores friendship, emotions, schools, and moving — 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.
✓ Patient readers who enjoy slower, character-driven stories.
✓ Kids drawn to stories about friendship, emotions, schools.
✓ Readers (and parents) who care about award-recognized writing — Only Alien on the Planet carries an award.