The Six Messiahs

The year is 1894, and Arthur Conan Doyle is visiting America on a book tour with his brother, Innes. He is also secretly investigating the disappearance of a number of holy books, on the orders of Lord Gladstone. En route to New York City, there is a mysterious murder of a rare book dealer aboard their steamer. Even more shocking, an elderly priest traveling with them reveals himself as a disguised Jack Sparks, who survived his fall over the Reichenbach Falls but has become a broken man (physically and spiritually).