"The Man Who Knew Too Much" is a classic British mystery written by G. K. Chesterton and appeared in 1922. The eight short adventures in this classic trace the activities of Horne Fisher, the man who knew too much, and his trusted friend Harold March. Although Horne's keen mind and powerful deductive gifts make him a natural sleuth, his inquiries have a way of developing moral complications. Notable for their wit and sense of wonder, these tales offer an evocative portrait of upper-crust society in pre–World War I England.
G. K. Chesterton was an influential and prolific English writer of the early 20th century who is best known as the creator of detective-priest Father Brown (even though Chesterton's mystery stories constitute only a small fraction of his writings).
