Sherlock Holmes and The Sign of Four

“When you have eliminated the impossible
then whatever remains, however improbable, must be the truth!”
What has become of Captain Morstan, and why does his daughter now receive a valuable pearl every year from an anonymous benefactor? What begins as a curious puzzle soon becomes a terrifying murder hunt, with the discovery of a missing fortune, a locked room and the murdered body of Bartholomew Sholto. But who committed these heinous, inexplicable crimes and how do they involve a map of the far-off Agra Fort?
The case of The Sign Of Four stretches all of Sherlock Holmes’s powers of deduction in a mystery that was born in war-torn India and now stalks Victorian London, fuelled by the vengeance of a seemingly unstoppable cut-throat gang.
With the help of the Baker Street Irregulars and Doctor Watson’s new love Mary, can Holmes finally bring the gang’s malicious leader to justice, recover the stolen treasure, and reveal the hideous truth behind the riddle of The Sign Of Four?