Reviewed by HootRated editorial · Last updated
Only Alien on the Planet
Kristen Randle
Only Alien on the Planet
Age Rating, Reading Level & Content Guide
by Kristen Randle
The text is written at a 4th grade reading level, the subject matter is intended for teens (ages 13+), and the content is mild with minimal sensitive material. Its HootRating code, LE, means mild content, mostly emotional.
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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
Quick Assessment
Ginny starts her senior year at a new school and becomes determined to reach Smitty Tibbs, a classmate who has never spoken to anyone and is known as the Alien. As their friendship grows, the story gradually reveals that he has been abused, and it explores trauma, withdrawal, and the difficult question of when pushing someone toward connection helps or harms. Parents should know that the abuse is discussed rather than shown in graphic detail, and that the book includes a light romantic thread and emotionally heavy moments.
Why we rated Only Alien on the Planet LE (Mild)
Only Alien on the Planet is written at a Level 4-5 reading level across 240 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 Only Alien on the Planet as LE (Mild, mostly 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 13+ range — the maturity and attention span match the story's pacing.
- ✓ 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.
Maybe not for
- ! Readers looking for something heavier — this is a gentle, low-stakes story by design.
For Parents
Content Intensity
LE · Mild · EmotionalReading 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
Light conflict or tension. Mild peril resolved quickly.
Was our "Mild" content intensity rating accurate for this book?
Reading Insights
Discussion Potential
1/10A lighter read — great for independent enjoyment.
Book DNA
Multi-dimensional content fingerprint
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Details
Book Length
- ISBN
- 9781402226694
- Pages
- 240
- Publisher
- Sourcebooks Fire
- Published
- 2009
- Type
- Fiction