What reading level is The Immortal Fire?

The Immortal Fire by Anne Ursu is at a Level 5-6 reading level (Lexile 820L). Recommended for Middle Grades readers (Ages 9-12).

What age is The Immortal Fire appropriate for?

The Immortal Fire is recommended for Ages 9-12. HootRating: 10ME (Moderate — Emotional).

What genre is The Immortal Fire?

The Immortal Fire is fiction — Juvenile Fiction.

Does The Immortal Fire have any content warnings?

The Immortal Fire has a HootRating of 10ME (Moderate — 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 Immortal Fire?

The Immortal Fire by Anne Ursu is 528 pages.

Reviewed by HootRated editorial · Last updated August 1, 2026

The Immortal Fire

Anne Ursu

The Immortal Fire

Age Rating, Reading Level & Content Guide

by Anne Ursu

Reading Level 5-6 10ME Ages 9-12 Matched

The text is written at a 5th grade reading level, the subject matter is intended for middle graders (ages 9–12), and the content has moderate intensity with some emotionally heavy themes.

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About This Book

Charlotte and Zee race through shadowy corridors, heart pounding as danger closes in. Suddenly, a secret brotherhood reveals a weapon that could stop Zeus himself—but at what cost? The fate of the world hangs in the balance, and one choice could change everything.

Themes

AdventureMythologyFantasy World-Building

Quick Assessment

This middle-grade fantasy novel follows Charlotte and Zee as they encounter an ancient brotherhood guarding humanity against the gods. The story explores themes of bravery, sacrifice, and mythology, suitable for readers aged 9 to 12. Parents should note the presence of mythical violence and high-stakes moral decisions.

Why we rated The Immortal Fire 10ME

The Immortal Fire is written at a Level 5-6 reading level with a Lexile measure of 820L across 528 pages. Strong independent readers around grade 6.5 can typically handle this book on their own; with parent or teacher support, The Immortal Fire works for readers up to grade 7.5.

We rate The Immortal Fire as 10ME ("Moderate — Emotional") because the content sits in the "Moderate" range — moderate conflict that may involve loss, scary scenes, or interpersonal stakes. The strongest signals come from emotional weight, physical peril, thematic difficulty — these are the dimensions parents should evaluate against their reader's tolerance.

No specific content flags were raised by community reviewers, which is consistent with the moderate intensity score.

Thematically, The Immortal Fire explores adventure, mythology, and fantasy world-building — 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, mythology, fantasy world-building.

Maybe not for

! Readers who get easily upset by emotional or moderately dark scenes — the conflict here is real, not just background flavor.
! Reluctant readers who need a fast hook — the pacing here rewards patience.