Conan Doyle is very famous for his research on blood characters and the symbol of four. But personally, I don't like it. There are many elements in thrillers. The only quasi-novel, The Hound of Baskerville, was praised. Conan Doyle's short stories are good, and they are the peak that future generations cannot surpass. Recommend memoirs and adventures.

Grandma has many classics, which one is the best, and it has always been difficult to draw a conclusion. Personally, no one is alive is the best, but it is a bit atypical. Strictly speaking, it is not a detective novel (spoiler). There is also a very subversive "Roger's Mystery", which is regarded as a classic by many people. I felt very uncomfortable after reading it, and thought it was a trick of my grandmother.

The representative work of grandma's style, which is accepted by everyone, is Murder on the Orient Express.