The Sign of the Four

Yellow fog is swirling through the streets of London, and Sherlock Holmes himself is sitting in a cocaine-induced haze until the arrival of a distressed and beautiful young lady forces the great detective into action. Each year following the strange disappearance of her father, Miss Morstan has received a present of a rare and lustrous pearl. Now, on the day she is summoned to meet her anonymous benefactor, she consults Holmes and Watson.

Introduction by Peter Ackroyd and notes by Ed Glinert

Author Biography: Sir Arthur Conan Doyle (1859-1930) was born in Edinburgh and studied medicine. He began writing while he waited for his practice to grow and, with 1887's A Study in Scarlet, created one of the most famous literary characters of all time. He was a volunteer physician in the Boer War and wrote a book on spiritualism. Three more volumes of his fiction are forthcoming from Penguin Classics.