Sophies Concertdiary has 3 Edgar Wallace concerts.

Richard Horatio Edgar Wallace (April 1, 1875–February 10, 1932) was a prolific British crime writer, journalist and playwright, who wrote 175 novels, 24 plays, and countless articles in newspapers and journals. Over 160 films have been made of his novels, more than any other author. In the 1920s, one of Wallace's publishers claimed that a quarter of all books read in England were written by him. His plays were translated in 77 languages.