A pipe, a violin, a straightforward attitude and an ability to see people through, these four qualities stand aside the most famous detective of all times – Mr. Sherlock Holmes of Sir Arthur Conan Doyle. His deduction and passion for solving puzzles won him love of millions fans all over the world. We would like to provide you with the possibility to listen online to a novel "The Sign of Four”, which describes one of the most exotic cases in Sherlock’s career. The action takes place in 1888, when a young woman called Mary comes to Holmes and Watson’s apartment at Baker Street 221B in London. For several years, she has received anonymous letters, each containing a magnificent pearl. She is eager to know whom the sender is and if he or she had something to do with her father, lost in India a decade ago. Sherlock Holmes and Doctor Watson begin to unwind this case to discover dark secrets, treasures and murders, spiced up with Indian color. Audiobook "The Sign of Four” is a breath-catching novel, that will leave you wonder about the real culprit until the last page.