"... Agras is a great city full of fanatical and passionate devotees of every faith. [...] Cursed is the day I saw the merchant Ahmed and the treasure of Agras. This treasure brings a curse to each of its owners. The merchant was murdered and the commander Soltos lived in terror and guilt. As for me, all it brought me was a life of slavery."
"The Sign of the Four" is the second major story of the legendary detective Sherlock Holmes with his friend and assistant, Dr. Watson, written in 1889. Set in Victorian London, the personality of Sherlock Holmes and his methods are fully portrayed.
Mysterious murders occur in London and Holmes emerges from the influence of cocaine, to which his inactivity has thrown him, to seek the solution to the story as well as the treasure of Agras, the sacred city of the Indies, which is the source of evil."