The Short-Wave Mystery
Age rating: Ages 13–15 · Teens
Age rating and Christian content guidance for parents.
First published 1945
In this mystery, Frank and Joe Hardy investigate a series of strange radio transmissions and a missing inventor.
Concern Level
Mild
Virtue Level
Thin
Concern Level
Mild
Virtue Level
Thin
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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 story.
There are some tense situations and minor scuffles, but no graphic violence.
No profanity is used by the characters.
No blasphemy is present in the book.
No substance abuse is depicted.
No suicide or self-harm is present.
Some suspenseful moments may be mildly unsettling.
No occult themes are present.
No LGBTQ+ themes are present.
The worldview is secular and focuses on problem-solving.
No negative portrayals of Christians are present.
Virtues to celebrate
Higher = stronger presenceFrank and Joe show bravery and determination in solving the mystery.
The story does not involve Christian faith.
Brotherly loyalty is present, but not self-giving love.
No themes of grace, mercy, or repentance are present.
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