Planet of the Cublix

Name: Planet of the Cublix
Author: Clotilde Bruneau
ISBN: 9780761387695

Age Rating, Reading Level & Content Guide

Book 19

by Clotilde Bruneau

Little Prince

Reading Level 3-4 C · Gentle Ages 9-12 Balanced Read Page-Turner

The text is written at a 3rd grade reading level, the subject matter is intended for middle graders (ages 9–12), and the content is gentle with no concerning themes. Its HootRating code, C, means gentle content.

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About This Book

On a smog-filled planet, Lux the blacksmith mistakenly thinks the robot-like Cublix are thieves, causing fear and division. The Cublix hide indoors, unable to recharge their batteries, while Lux keeps creating smog to protect himself. The Little Prince arrives to bring understanding and help everyone find a way to live together in harmony before their energy runs out.

Themes

Friendship Family Science & Nature Fantasy World-Building

Quick Assessment

This is a Level 3-4 book with gentle content intensity. No notable content concerns flagged. Written for readers ages 9-12.

Why we rated Planet of the Cublix C (Gentle)

Planet of the Cublix is written at a Level 3-4 reading level across 48 pages (approximately 2,257 words). Reading-wise, most kids in grade 4 and up can manage Planet of the Cublix on their own; younger readers can enjoy it with a parent or teacher reading along.

Read aloud, Planet of the Cublix takes about 15 minutes, which fits within a single read-aloud session.

We rate Planet of the Cublix as C (Gentle) 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, Planet of the Cublix explores friendship, family, science & nature, and fantasy world-building — 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.
✓ Reluctant readers who need fast-paced, hook-heavy stories to stay engaged.
✓ Kids drawn to stories about friendship, family, science & nature.
✓ Readers who fall hard for one book and want a long series to live in — there are 14 more books in the Little Prince series.

Maybe not for

! Readers looking for something heavier — this is a gentle, low-stakes story by design.

For Parents

Content Intensity

C · Gentle

Emotional

Gentle

Physical

Gentle

Social

Gentle

Thematic

Gentle

Reading 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

No conflict beyond everyday childhood experiences. Safe for sensitive readers.

Data confidence: standard

Was our "Gentle" content intensity rating accurate for this book?