Doyle, Sir Arthur Conan (1859-1930) - Scottish-born English writer
known for his detective stories based around the character of Sherlock Holmes. Doyle was a physician before gaining fame as a writer and, in his later years, he devoted most of his time to the study of spiritualism and the occult.

In The Yellow Face, Grant Munro thinks his wife is being blackmailed and hires Holmes
to break into the cottage his wife visits