Captain Underpants and the revolting revenge of the radioactive robo-boxers

Dav Pilkey

Captain Underpants and the revolting revenge of the radioactive robo-boxers

Age Rating, Reading Level & Content Guide

by Dav Pilkey

Reading Level 6 11C Ages 9-12 Balanced Read

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 gentle with no concerning themes.

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About This Book

George and Harold are trapped as evil zombie nerds, wandering a ruined world. Captain Underpants isn't around to save them this time—because he doesn't even exist yet! Can they fix history before it's too late?

Themes

Humor AdventureComics & Graphic Novels

Quick Assessment

This humorous graphic novel follows George and Harold as they face unexpected challenges after a time-travel mishap erases Captain Underpants from existence. Suitable for ages 9-12, it combines comic-style illustrations with toilet humor and fun, making it appealing for reluctant readers. Parents should note the light supernatural themes and playful mischief typical of the series.

Why we rated Captain Underpants and the revolting revenge of the radioactive robo-boxers 11C

Captain Underpants and the revolting revenge of the radioactive robo-boxers is written at a Level 6 reading level across 224 pages. Strong independent readers around grade 7.0 can typically handle this book on their own; with parent or teacher support, Captain Underpants and the revolting revenge of the radioactive robo-boxers works for readers up to grade 8.0.

We rate Captain Underpants and the revolting revenge of the radioactive robo-boxers as 11C ("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, Captain Underpants and the revolting revenge of the radioactive robo-boxers explores humor, adventure, and comics & graphic novels — 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 humor, adventure, comics & graphic novels.

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.

For Parents

Content Intensity

11C — Clear

Emotional

Clear

Physical

Clear

Social

Clear

Thematic

Clear

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

Data confidence: standard

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

Reading Insights

Hook Factor

3/10

A steady, thoughtful read that rewards patient readers.

Discussion Potential

1/10

A lighter read — great for independent enjoyment.

Book DNA

Multi-dimensional content fingerprint

Vocabulary Level

Emotional Weight

Theme Richness

World Scope

Data Confidence

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