When Sherlock Holmes and his arch-enemy Moriarty plunge over the Falls of the Reichenbach on the fourth of May, 1891, the world is led to believe that the great detective is no more, until he turns up again in London three years later, alive and well. What really happened during that period? The answer lies in some notes, here published as Sherlock Holmes and the Mark of the beast. One day in the autumn of 1981, Doctor Watson returns to his study and notices that the room is rather dark. He moves towards the windows, and a familiar voice says, "Keep the shutters closed, Watson." Once again, the game is afoot as Holmes and Watson follow a new adventure that leads them to Quebec City and the Saguenay to protect the Prince of Wales. . . .This is the first book in a trilogy of Holmes in Canada by Ronald C. Weyman.