Der Schwarze Turm (Der Sherlock Holmes-Adventkalender: Der Heilige Gral, Folge 16)

Sir Arthur Conan Doyle

Arthur Conan Doyle (22 May 1859 – 7 July 1930) was a Scottish physician and writer, most noted for his stories about the detective Sherlock Holmes, which are generally considered a major innovation in the field of crime fiction. He was a prolific writer whose other works include science fiction stories, historical novels, plays and romances, poetry, and non-fiction.