Sign of the Four is one of the outstanding novels of the Sherlock Holmes series. It is a brilliant mixture of suspense and action with the protagonist disentang

Miss Mary Marstan receives through the post once a year a large pearl without any clue as to the sender. When her mysterious correspondent requests a meeting, H

First published in 1890, The Sign of Four is Sir Arthur Conan Doyle's second book starring legendary detective Sherlock Holmes. The story is complex, involving

Sherlock Holmes took his bottle from the corner of the mantel-piece and his hypodermic syringe from its neat morocco case. With his long, white, nervous fingers