https://zbookstore.com/s/3258/the-red-thumb-mark
Book: The Red Thumb Mark by R. Austin Freeman
A priceless ruby vanishes and a clerk is seized when a bloody thumbprint seals his guilt. Yet a cool-headed physician-lawyer suspects the mark itself is a...
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https://storyroom.com/library/storyInfo.php?id=11754
The Red Thumb Mark: Info
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https://storyroom.com/n/11754/the-red-thumb-mark
The Red Thumb Mark - Mystery Story
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