The Hound of The Baskervilles opens with a mini mystery—Sherlock Holmes and Dr. Watson speculate on the identity of the owner of a cane that has been left in their office by an unknown visitor. Wowing Watson with his fabulous powers of observation, Holmes predicts the appearance of James Mortimer, owner of the found object and a convenient entrée into the baffling curse of the Baskervilles. (Source: sparknotes)
Sir Arthur Ignatius Conan Doyle KStJ, DL (22 May 1859 – 7 July 1930) was a British writer and physician, most noted for creating the fictional detective Sherlock Holmes and writing stories about him which are generally considered milestones in the field of crime fiction.
He is also known for writing the fictional adventures of a second character he invented, Professor Challenger, and for popularising the mystery of the Mary Celeste. He was a prolific writer whose other works include fantasy and science fiction stories, plays, romances, poetry, nonfiction and historical novels.