A gripping historical suspense novel, set in the present day and Victorian London, centering upon the holy grail of Sherlock Holmes enthusiasts-- the author's famed missing diary.In December 1893, Sherlock Holmes-adoring Londoners eagerly opened their Strand magazines-- anticipating the detective's next adventure-- only to find the unthinkable: his creator, Arthur Conan Doyle, had killed their hero off. London spiraled into mourning -- crowds sported black armbands in grief -- and railed against Conan Doyle as his assassin.