The keep of ages

Name: The keep of ages
Author: Caragh M. O'Brien
ISBN: 9781596439429

Age Rating, Reading Level & Content Guide

Book Three of the Vault of Dreamers Trilogy

by Caragh M. O'Brien

Reading Level 4-5 ME · Moderate · Emotional Ages 9-12 Matched

The text is written at a 4th 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. Its HootRating code, ME, means moderate content, mostly emotional.

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About This Book

There’s a secret hidden deep inside the ruined Grisly Valley—where a haunted theme park lies abandoned and dangerous. Rosie’s family has been taken by the mysterious Dean Berg, and she’s on a daring chase to find them. But what she discovers about the vault of dreamers will change everything, and that’s only the beginning.

Themes

AdventureDystopianFriendship Coming of Age

Quick Assessment

This middle-grade dystopian adventure follows Rosie as she pursues a kidnapper into a contaminated, eerie amusement park. The story blends suspense with themes of courage and resilience, suitable for readers aged 9-12 who enjoy thrilling fiction without graphic content. Parents should note the intense pursuit and dystopian setting but can expect age-appropriate handling of danger and mystery.

Why we rated The keep of ages ME (Moderate)

The keep of ages is written at a Level 4-5 reading level across 288 pages. Reading-wise, most kids in grade 6 and up can manage The keep of ages on their own; younger readers can enjoy it with a parent or teacher reading along.

We rate The keep of ages as ME (Moderate, mostly 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 — 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 keep of ages explores adventure, dystopian, friendship, and coming of age — 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.
✓ Kids drawn to stories about adventure, dystopian, friendship.

Maybe not for

! Readers who get easily upset by emotional or moderately dark scenes — the conflict here is real, not just background flavor.

For Parents

Content Intensity

ME · Moderate · Emotional

Emotional

Moderate ←

Physical

Moderate

Social

Gentle

Thematic

Mild

Reading the HootRating code: the first letter is the content intensity (C = Gentle · L = Mild · M = Moderate · I = Intense · V = Very Intense); the second, when there is one, is the kind of content that drives it (E = Emotional · P = Physical · S = Social · T = Thematic). Reading level and age range are rated separately. How we rate

Real stakes and emotional weight. May include sustained danger, loss, or bullying.

Data confidence: high

Was our "Moderate" content intensity rating accurate for this book?