What reading level is Blood ninja?

Blood ninja by Nick Lake is at a Level 5-6 reading level (Lexile 870L). Recommended for Middle Grades readers (Ages 9-12).

What age is Blood ninja appropriate for?

Blood ninja is recommended for Ages 9-12. HootRating: 10LE (Light — Emotional).

What genre is Blood ninja?

Blood ninja is fiction — Juvenile Fiction.

Does Blood ninja have any content warnings?

Blood ninja has a HootRating of 10LE (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 Blood ninja?

Blood ninja by Nick Lake is 369 pages.

Reviewed by HootRated editorial · Last updated June 9, 2026

Blood ninja

Nick Lake

Blood ninja

Age Rating, Reading Level & Content Guide

by Nick Lake

Reading Level 5-6 10LE 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

The sharp clang of swords echoes through the misty night, mixing with the cold scent of blood in the air. Taro’s heart pounds as secrets about ninjas and vampires unfold around him, pulling him into a dangerous world he never knew existed. Will he find where he truly belongs before the shadows close in?

Themes

Adventure Fantasy World-BuildingIdentityHistoricalNinjaVampires

Quick Assessment

Blood Ninja follows Taro, a young boy who, after his father’s death, uncovers a hidden world where ninjas and vampires are locked in a fierce struggle for power in historical Japan. Suitable for middle-grade readers, this action-packed fantasy explores themes of identity and loyalty within a richly imagined setting. Parents should note some scenes of mild peril and fantasy violence as Taro navigates this thrilling adventure.

Why we rated Blood ninja 10LE

Blood ninja is written at a Level 5-6 reading level with a Lexile measure of 870L across 369 pages. Strong independent readers around grade 6.5 can typically handle this book on their own; with parent or teacher support, Blood ninja works for readers up to grade 7.5.

We rate Blood ninja as 10LE ("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, Blood ninja explores adventure, fantasy world-building, identity, historical, and ninja — 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.
✓ Patient readers who enjoy slower, character-driven stories.
✓ Kids drawn to stories about adventure, fantasy world-building, identity.