Judging from Victorian novels, there is a feeling that eighty percent of the population of England were blessed with an inheritance from rich, generous and childless relatives who did not make themselves known until their death. Here is another story about how the main character met a rich cousin, of whom I had never heard before. True, in this case, the heir is himself very wealthy, and therefore free estates falling into the hands of random chromosomes do not appeal to him. The story sheds light on a blind spot in the life and exploits of Sherlock Holmes and worthy complements the classic series of adventures of the Great Detective.