
The clue of the left-handed envelope
Age rating: Ages 10–13 · Children
Age rating and Christian content guidance for parents.
First published 2000
Two young detectives, Leo and his sister, investigate a peculiar mystery involving a coded message and a missing item.
Concern Level
Mild
Virtue Level
Thin
Concern Level
Mild
Virtue Level
Thin
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 story.
No violence is depicted in the narrative.
No profanity is used by the characters.
No blasphemous language is present.
No substance abuse is depicted.
No instances of suicide or self-harm are shown.
The mystery may create mild suspense.
No occult themes are present.
No LGBTQ+ themes are present.
The worldview emphasizes logic, observation, and critical thinking.
No negative portrayals of Christians are present.
Virtues to celebrate
Higher = stronger presenceLeo and his sister show determination in solving the mystery.
No explicit Christian faith elements are present.
The siblings work together, showing familial support.
The story does not focus on themes of grace or repentance.
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