The Sign of Four by Arthur Conan Doyle

Sherlock Holmes is given a tricky little problem. Mary Morstan is getting pearls in her mail every year for six years. she does not know who sends it or why they send it. Miss Morstan has now received a letter which urges her to meet with the sender that night. The anonymous sender permits her to bring two friends as long as they are not police. now take a guess who those two friends might be? Holmes and Watson travel with the Mary Morstan to meet the sender.

The sender is Mr Sholto whose father Major Sholto had mysteriously come to acquire a treasure and that Mary Morstan's father had an equal share to that treasure. So, Mary whose father had passed away should be bequeathed with half of the treasure. The only problem is that the Major Sholto had hidden the treasure in his Norwood home and his sudden demise left Mr Sholto and his twin brother perturbed as they did not know the location of the treasure.

After searching for 6 years they have finally found it. Now Mr Sholto wants to take Mary Morstan with her to his father's Norwood home where they will divide the treasure. So, the four of them Mary Morstan, Mr Sholto, Homles and Watson start off to get the treasure but instead they get a murder.

Review:

A Classic of the genre or a horrible racist mistake by Sir Arthur Conan Doyle?

A Study in Scarlet by Sir Arthur Conan Doyle

  Plot: Dr. Watson has returned to London from a brutal war in Afghanistan, broke and convalescing from his injuries, Watson needs a place to stay. Soon, Watson meets the eccentric and brilliant Sherlock Holmes with whom he will share his residence at Baker Street. Dr Watson finds out the Holmes is a consulting detective and is a polymath whose skills in deduction are unmatched.

Police Detectives are frequent visitors to the Baker Street resident, where they seek Holmes advise on unusual and tenebrous crimes. On one such faithful day, Holmes gets a letter from the Police about a most perplexing murder. A man was found dead in an abounded house without an injury on his body but there are marks of blood in the room and "RACH" is written in blood on the wall.

Lestrade and Gregson want Holmes to help them in the case where the next victim of the murderer is the Prime suspect.