Sherlock Holmes was an avid drug user. Found that kind of funny actually.

Yes. Cocaine, opium and morphine.

"Sign of the Four" is one of the best.

"The Sign of Four" is excellent. It is the first story where Doyle fleshed out Holmes after introducing him in "A Study in Scarlet"

I'm a big Sherlock Holmes fan. I've read most of the stories

interesting..