Sherlock Holmes: The Adventure of the Creeping Man

A man named Trevor Bennett, the personal secretary of one Professor Presbury, comes to Holmes with a most unusual problem. He is engaged to the professor's daughter, Edith, and the Professor is himself engaged to a young lady, Alice Morphy, although he himself is already 61 years of age. Their impending marriage has caused no scandal, but the trouble seems to have begun at about the time of the engagement. First, the professor suddenly left home for a fortnight without telling anyone of his...