Originally written in 1907, „The Red Thumb Mark” opens the series by R. Austin Freeman featuring Dr. Thorndyke, who is a sort of Sherlock-Holmes type character. A single fingerprint is found at the scene of a crime. When the police are able to identify that fingerprint, the case seems closed. But Dr. Thorndyke, the detective/barrister/medical doctor who takes on defense of this suspect, thinks he ...