What reading level is The door in the moon?

The door in the moon by Catherine Fisher is at a Level 3-4 reading level (Lexile 640L). Recommended for Lower Grades readers (Ages 5-8).

What age is The door in the moon appropriate for?

The door in the moon is recommended for Ages 5-8. HootRating: 8LE (Light — Emotional).

What genre is The door in the moon?

The door in the moon is fiction — JUVENILE FICTION.

Does The door in the moon have any content warnings?

The door in the moon 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 The door in the moon?

The door in the moon by Catherine Fisher is 349 pages.

Reviewed by HootRated editorial · Last updated September 7, 2026

The door in the moon

Catherine Fisher

The door in the moon

Age Rating, Reading Level & Content Guide

by Catherine Fisher

Reading Level 3-4 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

Jake and Sarah tumble through the shimmering Obsidian Mirror, crashing into the chaos of the French Revolution. Everywhere, sounds of shouting and clashing fill the air, and danger lurks in every shadow. Meanwhile, Oberon Venn faces a choice that could change his fate forever—but which path will he choose?

Themes

Fantasy & MagicAdventure Historical Family

Quick Assessment

This fantasy adventure follows siblings Jake and Sarah as they are transported through a magical mirror into the tumultuous era of the French Revolution. Alongside their journey, a character named Oberon Venn grapples with a profound decision involving the faerie realm. Suitable for early readers aged 5-8, the story includes themes of magic, historical settings, and fantasy, with mild peril appropriate for this age group.

Why we rated The door in the moon 8LE

The door in the moon is written at a Level 3-4 reading level with a Lexile measure of 640L across 349 pages. Strong independent readers around grade 4.5 can typically handle this book on their own; with parent or teacher support, The door in the moon works for readers up to grade 5.5.

We rate The door in the moon 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, The door in the moon explores fantasy & magic, adventure, historical, and family — 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 fantasy & magic, adventure, historical.