What reading level is Pop goes the circus!?

Pop goes the circus! by Kate Klise is at a Level 3 reading level (Lexile 520L). Recommended for Lower Grades readers (Ages 5-8).

What age is Pop goes the circus! appropriate for?

Pop goes the circus! is recommended for Ages 5-8. HootRating: 8LE (Light — Emotional).

What genre is Pop goes the circus!?

Pop goes the circus! is fiction — Juvenile Fiction.

Does Pop goes the circus! have any content warnings?

Pop goes the circus! has a HootRating of 8LE (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 Pop goes the circus!?

Pop goes the circus! by Kate Klise is 124 pages.

Reviewed by HootRated editorial · Last updated May 18, 2026

Pop goes the circus!

Kate Klise

Pop goes the circus!

Age Rating, Reading Level & Content Guide

by Kate Klise

Reading Level 3 8LE Ages 5-8 Matched

The text is written at a 3rd grade reading level, the subject matter is intended for younger children (ages 5–8), and the content is mild with minimal sensitive material.

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About This Book

The sharp pop of a balloon echoes through the circus tents, sending a tiny mouse tumbling into the air. Meanwhile, a girl tired of being overlooked hatches a daring plan to get noticed—by mailing herself to the circus! What happens when their worlds collide in a whirlwind of adventure and unexpected friendship?

Themes

Adventure FriendshipRunawaysAnimalsCircus

Quick Assessment

This early reader book tells the charming story of Bert, a circus mouse who accidentally floats away on a balloon, and Flora, a girl seeking attention from her busy parents. Together, they navigate a series of challenges including dangerous situations and misunderstandings as they try to find their way home. Suitable for ages 5-8, the story gently explores themes of friendship, independence, and problem-solving without intense content.

Why we rated Pop goes the circus! 8LE

Pop goes the circus! is written at a Level 3 reading level with a Lexile measure of 520L across 124 pages. Strong independent readers around grade 4.0 can typically handle this book on their own; with parent or teacher support, Pop goes the circus! works for readers up to grade 5.0.

We rate Pop goes the circus! as 8LE ("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, Pop goes the circus! explores adventure, friendship, runaways, animals, and circus — these threads give the book room to mean different things to different readers.

Good fit for

✓ Children in the Ages 5-8 range — the maturity and attention span match the story's pacing.
✓ Patient readers who enjoy slower, character-driven stories.
✓ Kids drawn to stories about adventure, friendship, runaways.