Этюд в багровых тонах

Holmes feels like such an iconic figure, but I wonder what sparked the idea for such a unique detective. Did Doyle draw from any real-life inspirations?

The setting really transports you back in time, but I'm curious if others felt it added to the suspense or slowed down the story.

The Victorian backdrop gives it a certain charm, but imagining Holmes solving cases today makes me wonder about the timelessness of his methods.