Hemlock Th rones, he who discerns

Let us say you are a detective in the Victorian age of 1899. How do you go about solving a crime? Well, let's see: you do not have a telephone, an auto, fingerprints, crime labs, or computers, but you are blessed with the ability to read people, and undress their body language even before they themselves know what they are wearing. Is that enough for The Case of Six? It is very complicated!

Are you able to analyze what was done, how it was accomplished, and put it all together with your ability to discern the motive, find the parts, fit them into the puzzle? If you can do all those things, you are Hemlock Th rones. And your friend, Doctor Marco Marconi, told this story about lovely, tormented Dulcy.