‘I know detectives,’ he said to her. ‘I have seen them in the witness-box and out of it. They are admirable men in their own groove. Give them an ordinary crime—a robbery or a forgery—and they can grapple with it. They will track the defaulting cashier to America for you, or run down the absconding broker in the depths of the Australian Bush. But there their usefulness ends. They are no good in the face of a real mystery like this. This is not a question of clever detection; it is a case of reading the human heart and penetrating its motives. A genius could help us, but I know of no genius in Scotland Yard. No, I [Pg 43]will do what I can; and if I come to anything in the way of ordinary detective work I will send for Sergeant Wright.’

So he continued to work alone. He had by this time seen and talked with every witness who. . . Read More