The Sign of the Four

HarperCollins is proud to present its incredible range of best-loved, essential classics.
‘How often have I said to you that when you have eliminated the impossible whatever remains, however improbable, must be the truth?’
In London, 1888, the razor-sharp detective skills of Sherlock Holmes are to be put to the test. Mary Morstan reports two seemingly unconnected and inexplicable events: the disappearance of her father, a British Indian Army captain, and the annual arrival of