What reading level is Promised?

Promised by Caragh M. O'Brien is at a Level 4-5 reading level (Lexile 730L). Recommended for Middle Grades readers (Ages 9-12).

What age is Promised appropriate for?

Promised is recommended for Ages 9-12. HootRating: 9MT (Moderate — Thematic).

What genre is Promised?

Promised is fiction — Juvenile Fiction.

Does Promised have any content warnings?

Promised has a HootRating of 9MT (Moderate — Thematic). 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 Promised?

Promised by Caragh M. O'Brien is 305 pages.

Reviewed by HootRated editorial · Last updated June 9, 2026

Promised

Caragh M. O'Brien

Promised

Age Rating, Reading Level & Content Guide

by Caragh M. O'Brien

Reading Level 4-5 9MT Ages 9-12 Balanced Read

The text is written at a 4th 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

Gaia races through the shadows of the Enclave, heart pounding as danger closes in. She left once to save herself, but now she must return—facing secrets that could change everything. What will she find waiting for her inside?

Themes

Science & Nature Family SurvivalGenetic Engineering

Quick Assessment

Promised follows 16-year-old Gaia Stone, a midwife who returns to a controlled, genetically engineered society called the Enclave. This middle-grade science fiction novel explores themes of family bonds, survival, and ethical dilemmas surrounding genetic engineering. Suitable for ages 9-12, it includes mild tension and complex themes appropriate for middle-grade readers.

Why we rated Promised 9MT

Promised is written at a Level 4-5 reading level with a Lexile measure of 730L across 305 pages. Strong independent readers around grade 5.5 can typically handle this book on their own; with parent or teacher support, Promised works for readers up to grade 6.5.

We rate Promised as 9MT ("Moderate — Thematic") because the content sits in the "Mild" range — mild conflict — the kind a child encounters in normal play and sibling life. The strongest signals come from 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 mild intensity score.

Thematically, Promised explores science & nature, family, survival, and genetic engineering — 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 science & nature, family, survival.