What reading level is Dark Secret?

Dark Secret by Tui T. Sutherland is at a Level 5 reading level. Recommended for Middle Grades readers (Ages 9-12).

What age is Dark Secret appropriate for?

Dark Secret is recommended for Ages 9-12. HootRating: 10LP (Light — Physical). Content flags: Mild Peril, Fantasy Violence.

What genre is Dark Secret?

Dark Secret is fiction — Juvenile Fiction. Part of the Wings of Fire series.

Does Dark Secret have any content warnings?

Dark Secret has a HootRating of 10LP (Light — Physical). Content flags include: Mild Peril, Fantasy Violence. On HootRated, every book is rated across four dimensions — emotional, physical, social, and thematic — to help parents make informed choices.

How many pages is Dark Secret?

Dark Secret by Tui T. Sutherland is 227 pages.

Reviewed by HootRated editorial · Last updated May 18, 2026

Dark Secret

Tui T. Sutherland

Dark Secret

Age Rating, Reading Level & Content Guide

a Graphix Book

by Tui T. Sutherland

Wings of Fire · Book 4

Reading Level 5 10LP Ages 9-12 Balanced Read

The text is written at a 5th grade reading level, the subject matter is intended for middle graders (ages 9–12), and the content is mild with minimal sensitive material.

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About This Book

Captured by his own tribe, Starflight uncovers chilling secrets about the NightWings and their shadowy realm where innocent RainWings are trapped. Alone and desperate, he must summon courage to escape and protect two kingdoms from looming danger. A thrilling adventure filled with magic, mystery, and bravery awaits!

Themes

Fantasy World-Building Adventure Friendship

Quick Assessment

This is a Level 5 book with mild content intensity. Content themes include mild peril, fantasy violence. Written for readers ages 9-12.

Why we rated Dark Secret 10LP

Dark Secret is written at a Level 5 reading level across 227 pages. Strong independent readers around grade 6.0 can typically handle this book on their own; with parent or teacher support, Dark Secret works for readers up to grade 7.0.

We rate Dark Secret as 10LP ("Light — Physical") 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.

Specific content flags noted by reviewers: Mild Peril, Fantasy Violence.

Thematically, Dark Secret explores fantasy world-building, adventure, and friendship — 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.
✓ Readers who like a steady plot with enough momentum to keep pages turning.
✓ Kids drawn to stories about fantasy world-building, adventure, friendship.
✓ Readers who fall hard for one book and want a long series to live in — there are 14 more books in the Wings of Fire series.