the 'Colonel' himself had been concerned in this affair, therefore Anita felt satisfied that she had a real hold over him, should she need it. Carton now proposed that I should make a bargain with Anita Grünberg, or Nadina, as she now called herself. For a sufficient sum of money he thought that she would be willing to give up the diamonds and betray her former employer. He would cable to her immediately.
"I was still suspicious of Carton. He was a man whom it was easy enough to frighten, but who, in his fright, would tell so many lies that to sift the truth out from them would be no easy job. I went back to the hotel and waited. By the following evening I judged that he would have received the reply to his cable. I called round at his house and was told that Mr. Carton was away, but would be returning on the morrow. Instantly I became suspicious. In the nick of time I found out that he was in reality sailing for England on the Kilmorden Castle, which left Cape Town in two days' time. I had just time to journey down and catch the same boat.
"I had no intention of alarming Carton by revealing my presence on board. I had done a good deal of acting in my time at Cambridge, and it was comparatively easy for me to transform myself into a grave bearded gentleman of middle age. I avoided Carton carefully on board the boat, keeping to my own cabin as far as possible under the pretence of illness.
"I had no difficulty in trailing him when we got to London. He went straight to an hotel and did not go out until the following day. He left the hotel shortly before one o'clock. I was behind him. He went straight to a house-agent in Knightsbridge. There he asked for particulars of houses to let on the river.
"I was at the next table also inquiring about houses. Then suddenly in walked Anita Grünberg, Nadina—what-
