The Hound of Baskervilles

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)