The Adventure of the Red Circle - a Sherlock Holmes Short Story

The way the Red Circle is shrouded in secrecy really adds to the suspense. I wonder what inspired Doyle to keep this element so enigmatic.

Holmes’ witty remarks and teasing nature made the story feel lighter at times. Was that a deliberate choice to add humor to the mystery?

The story shows Holmes working alongside or sometimes against the police. Does that dynamic feel authentic or a bit theatrical to others?