Sherlock Holmes is a famous detective create by Arthur CONAN DOYLE in the detective novel A Study in Scarlet release in 1887. The novel is writing with the Watson’s point of view.

This novel is split in two parts,
First at London with the doctor John H Watson who come back from Afghanistan War and he’s now retired from army because he’s wounded at shoulder. He was military doctor.
Now, he hasn’t enough money to lives alone and he search a flatmate to divide the expenses.
He meets the detective Sherlock Holmes and he decides to share a flat with him. They lives at the 221b Baker Street at Miss Hudson’s house.
Sherlock will show to John’s is detective’s talents and he will guess this past at the army.

One day, Sherlock receives a letter from a member of Scotland Yard (London’s police) who ask him to help for an investigation.
Sherlock will take Watson on board and he makes him his assistant.

In the second part, the narrator changes and we follow Lucy.
Lucy is the victim of the murder what Sherlock was call to help.
We discover the Lucy’s past to his death.
At the end, this second story meet the story and with this method, we understand Sherlock’s deduction methods.
This method of deduction, based on scientific facts is new for the age, contrary to now where all detectives movies/series/novel uses this method. At the age, policy deduces who is the guilty with the suspect’s reputation and expressions.

A Study in Scarlet it the novel were we can discover Sherlock Holmes and his works methods.
It’s a fantastic novel because the story is good writing and very interesting and Sherlock is a fascinating character what we want discover in the follows story.