In 1886, wealthy philanthropist Lord Backwater is found beaten to death on the grounds of his estate. Sherlock Holmes and Dr Watson must unravel the mystery by pitting their wits against a ruthless enemy, taking them across the globe in search of the killer.
Spring 1902. America is coming to terms with the murder of President McKinley & Britain is preparing to crown King Edward VII. A series of cryptic adverts in a personal column lead Holmes to a body in Regent's Park & when a Scottish lawyer is found murdered on the same day, Holmes senses a conspiracy linked to the Jacobites.
From a manuscript believed to be the work of John H. Watson, MDThe summer of 1897 brings visitors flocking to London for Victorias Diamond Jubilee. With them comes a Russian nobleman, as well as an English lady from Canada. This lady calls on Holmes and Watson for their assistance in dealing with strangers who are following her. The mystery deepens when Holmes recognizes one of them as the head of Russian Intelligence in London.