A. C. Doyle: The Speckled Band and H. S. Harrison: Miss Hinch. Two completely mysterious criminal cases: A young woman dies in a mysterious way – a murderer, whose picture is published in all the newspapers, remains missing without a trace. No one believes in the resolution of the crimes anymore. However, through careful observation, the cases are solved in surprising ways. These classic detective stories inspire readers to search for clues, follow leads, recognize connections, and reconstruct events. It requires sharp wit and imagination. Those pursuing a crime must put themselves in others' shoes, envision situations, gather evidence, and pick up trails.