"We progress," he said; "we progress. At every contact with this man we learn a little of his mind and his methods. Of us and our plans he knows nothing."
"And there, Poirot," I protested, "he and I seem to be in the same boat. You don't seem to me to have any plans, you seem to sit and wait for him to do something."
Poirot smiled.
"Mon ami, you do not change. Always the same Hastings, who would be up and at their throats. Perhaps," he added, as a knock sounded on the door, "you have here your chance; it may be our friend who enters." And he laughed at my disappointment when Inspector Japp and another man entered the room.
"Good-evening, moosior," said the Inspector. "Allow me to introduce Captain Kent of the United States Secret Service."
Captain Kent was a tall, lean American, with a singularly impassive face which looked as though it had been carved out of wood.
"Pleased to meet you, gentlemen," he murmured, as he shook hands jerkily.
Poirot threw an extra log on the fire, and brought forward more easy-chairs. I brought out glasses and the whisky and soda. The captain took a deep draught, and expressed appreciation.
"Legislation in your country is still sound," he observed.
"And now to business," said Japp. "Moosior Poirot here made a certain request to me. He was interested in some concern that went by the name of the Big Four, and he asked me to let him know at any time if I came across a mention of it in my official line of business. I didn't take much stock in the matter, but I remembered what he said, and when the captain here came over with rather a curious story, I said at once, 'We'll go round to Moosior Poirot's.'"