For our 250th episode we listen to an adaptation of a landmark detective story, Sir Arthur Conan Doyle's "The Final Problem," presented by The Adventures of Sherlock Holmes! In this broadcast, Sir John Gielgud's Sherlock Holmes attempts to once and for all put an end to the criminal machinations of Orson Welles' James Moriarty! Will the World's Greatest Detective be able to outsmart the Napoleon of Crime? How far will Holmes go to succeed? Which of your hosts didn't know how this story would end the first time he encountered it? Listen for yourself and find out!