This book mainly tells the story of Sherlock Holmes, a private detective, and his assistant Watson's struggle with evil forces. There are mainly these major cases: A Study of Red Characters, The Signs of Four, The Last Case, The Adventures of an Empty House, The Magic Dog of Baskerville, The Red Circle Society and so on. Let's talk about the study of this blood word first.

Let's meet the author first. His name is Arthur. Conan Doyle, a British detective novelist at the end of 19, was called "the originator of detective mystery novels" because of his successful portrayal of Sherlock Holmes.

Back to the point. A Study of Blood Characters is a novel written by Conan Doyle in 1887, and it is also his first work featuring Sherlock Holmes. This novel mainly tells the story that Watson and Holmes meet in a basement through the introduction of Watson's friend. Soon, they lived in this house at 22 Baker Street. Sherlock Holmes' detective reasoning ability surprised Watson. Soon, Colonel Grayson asked Holmes to solve the murder of Garden Street in Loriston. There was a wedding ring next to the victim at the murder scene. The word "Rachel" is written on the wall in blood. Holmes caught the murderer Hou Bo by surprise.

What impressed me most about this novel was Holmes' courage. He is not afraid of difficulties, dares to struggle, can judge the current situation according to the situation, and can boldly guess anything. Here are some quotations from Holmes: 1. I think the human brain is just like an empty attic, so we should put some furniture in it selectively. Only a fool will put all kinds of rubbish in it. In this way, the knowledge that is useful to him is squeezed out instead; Or, at most, just mixed with many other things. Logicians don't need to see or hear the Atlantic Ocean or Niagara Falls with their own eyes. He can infer its possible existence from a drop of water, so the whole life is a huge chain. As long as he sees one of the links, he can infer the whole chain.

It can be seen that Holmes is a successful man with courage, wisdom, accurate judgment and legendary color.

Let's pay tribute to Conan Doyle and Holmes!