It’s been said that Sherlock Holmes is the most famous man who never lived and who, consequently, can never die. Just in the past decade, Holmes has repeatedly dazzled us with his deductions in blockbuster movies, two popular television series and dozens of new stories and novels. More than ever, enthusiastic devotees crowd exhibitions about the great detective, attend conventions in his honor and join “scion societies” of the revered Baker Street Irregulars, including the Red Circle of…