"The Hound of the Baskervilles"; "A Scandal in Bohemia"; "The Red-Headed League"; "The Boscombe Valley Mystery"; "The Dancing Men"; "The Final Problem." Even after more than a century, these six superb Sherlock Holmes tales arrest our attention. One of the secrets of their appeal, of course, is that they place us in the Downing Street setting, challenging us to test our Holmesian deductive skills against those of the master himself. That challenge becomes even more palpable when the pieces of evidence become real, as they do in this simulated crime case file, complete with evidence bags containing facsimile letters, confessions, photographs, other documents, and Dr. Watson's confidential reports to his Baker Street confidant.