The Neptune Project
Age rating: Ages 13–17 · Teens
Age rating and Christian content guidance for parents.
First published 2013
A girl discovers she has gills and can breathe underwater, leading her to a hidden underwater city and a mission to save humanity.
Concern Level
Mixed
Virtue Level
Present
Concern Level
Mixed
Virtue Level
Present
What is Dokilit?
Dokilit is an AI-powered content guide for Christian parents. We analyse books through the lens of faith and family, then show you the concerns, the virtues, and the conversation points that matter for your home.
Things to consider
Higher = more presentNo sexual content is present in the book.
Features action sequences and some peril as characters face threats.
No profanity is used by the characters.
No blasphemy is present in the narrative.
No substance abuse is depicted.
No suicide or self-harm is featured.
Some intense underwater scenes and threats may be scary.
No occult or witchcraft elements are present.
No LGBTQ+ themes are prominent or affirmed.
The story presents a secular, survival-focused worldview.
Christians are not portrayed negatively.
Virtues to celebrate
Higher = stronger presenceThe protagonist shows courage in facing her new reality and dangers.
No explicit Christian faith elements are present.
Loyalty to friends and family is a significant theme.
Focuses on overcoming challenges rather than grace.
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