He is the true cause of most of the evil in this great city. He has a really excellent brain. But he does little himself. Instead he is at the centre of everything, planning away. He has many helpers, and they are well organized. If someone wants a crime done, a message goes to the Professor and he plans it. Sometimes the criminal is caught, but never the controlling mind. This, Watson, is the organization which I have been fighting with all my powers.' `Good God, Holmes! And have you succeeded?' I asked.