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Trapped at the bottom of the sea

Frank E. Peretti

Cover of Trapped at the bottom of the sea

Trapped at the bottom of the sea

Age Rating, Reading Level & Content Guide

by Frank E. Peretti

Cooper Kids Adventure

Reading Level 5-6 MP · Moderate · Physical 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. Its HootRating code, MP, means moderate content, mostly physical.

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About This Book

Lila Cooper finds herself trapped deep beneath the ocean in a hidden weapons pod, hoping her family can save her before her air runs out. Her brother and father face a thrilling race against time and dangerous foes to bring her home safely. Courage and family bonds shine through this underwater adventure.

Themes

AdventureFamilyChristian Life

Quick Assessment

This is a Level 5-6 book with moderate content intensity. Content themes include physical danger, mild peril. Written for readers ages 9-12.

Why we rated Trapped at the bottom of the sea MP (Moderate)

Trapped at the bottom of the sea is written at a Level 5-6 reading level across 144 pages (approximately 38,455 words). Reading-wise, most kids in grade 7 and up can manage Trapped at the bottom of the sea on their own; younger readers can enjoy it with a parent or teacher reading along.

Read aloud, Trapped at the bottom of the sea runs about 4.3 hours — long enough to span several bedtime sessions.

We rate Trapped at the bottom of the sea as MP (Moderate, mostly physical) because the content sits in the "Moderate" range — moderate conflict that may involve loss, scary scenes, or interpersonal stakes. The strongest signals come from physical peril — these are the dimensions parents should evaluate against their reader's tolerance.

Specific content flags noted by reviewers: Physical Danger, Mild Peril.

Thematically, Trapped at the bottom of the sea explores adventure, family, and christian life — 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 adventure, family, christian life.
  • ✓ Readers who fall hard for one book and want a long series to live in — there are 6 more books in the Cooper Kids Adventure series.

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

MP · Moderate · Physical
Emotional
Gentle
Physical
Moderate ←
Social
Gentle
Thematic
Gentle

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.

Content Flags

Physical Danger Mild Peril
Data confidence: standard

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

Reading Insights

Hook Factor

5/10

Engaging read with themes and hooks that keep pages turning.

Discussion Potential

3/10

A lighter read — great for independent enjoyment.

Book DNA

Multi-dimensional content fingerprint

Vocabulary Level
5
Emotional Weight
6
Narrative Pace
3
Theme Richness
5
World Scope
1
Data Confidence
8

More in the Cooper Kids Adventure Series

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Matched on content and themes — all rated for reading level and content intensity.

Details

Book Length

144 pages
38,455 words
4h 16m read-aloud
ISBN
0891075941
Pages
144
Published
1990
Type
Fiction
Word Count
38,455
Read-Aloud
~4h 16m
Text Density
Dense

Genres

Subjects

ReligiousChristianIslandsAction & AdventureAdventure and AdventurersChristian Life