In The Hound of the Baskervilles, Sherlock Holmes, who prides himself on reason and logic, finds himself facing down what seems to be a supernatural mystery. The men of the Baskerville family have been plagued and even killed by a large, frightening hound for generations. The latest victim is Charles Baskerville. His son Henry seeks the help of Holmes and Dr. Watson. Holmes uses his deductive reasoning to determine the real cause of the murder and to show that it is not the supernatural at play.