The Sign of the Four

The Sign of the Four was written by Arthur Conan Doyle and first published in 1890. When an Englishwoman receives mysterious gifts of pearls and a letter promising to right wrongs done to her, she calls upon Sherlock Holmes and Dr. Watson to investigate. Who is sending the beautiful Miss Morstan a rare and priceless pearl each year? Holmes and Watson pursue Indian treasures, and murders whose ominous trademark is "the sign of four". It is in this, the second Holmes novel that the great detective fully comes to life as a melancholic and an inscrutable master of deduction.