Like a man in a dream I arose and approached one of those sturdy, well-fed constables who stand ever at the barriers that mark off the sacred corridors of the House from the vulgar footstep of the unelect public.

“Please give that to Mr Cooper-Nassington,” I said in a voice that I think had not the slightest resemblance to my natural tones.

My mood now was one of absolute indifference. Whatever happened, I recognised now that I was in for something extraordinary, and I felt I might as well get it over at once as sit on a lounge in that close, stuffy, noisy hall and speculate about a mystery to which I had no clue.

Even John Cooper-Nassington, millionaire, was no small legislative lion to tackle. In the days when South American industries were booming on the Stock Exchange he had appeared with the most wonderful options for railways in the different states—here, there, everywhere—and in three years he had emerged from the pit of speculation with hands cleaner and pockets heavier than most. Ever since he had been regarded as a great authority on things South American. Whenever Chili and Peru had a set-to, which they did regularly once in two years, or Venezuela grew offensive to its friends, or Mexico wanted to swell itself a little, John Cooper-Nassington was sent for by one side or the other; yet, alas, his enemies said he had more pleasure in putting down half-a-million to pay the expenses of a revolution in which five or six thousand innocent varlets were burnt or blown into eternity than he had in subsequently floating a costly war loan, three parts of which usually meandered into his own pocket.

Still, John Cooper-Nassington, when all was said and done, was but a penny pictorial paper kind of Boanerges compared with the quick, Napoleonic qualities of Lord Cyril Cuthbertson who, by the way, had a curious personal resemblance to the First Consul, and was certainly not more than thirty-five years of age. Nassington, now, was a big, heavy-jawed man of about fifty, with a head and beard of iron-grey hair and a brawny, hairy, massive fist that would have felled a man at a blow; yet, as he suddenly projected himself through the swing doors that divided the lobby from the hall to meet me, I saw that he was carrying the letter I had sent carefully closed in his hands still but that his face was white and his looks strangely agitated.

“Ah, Mr Glynn,” he said as I advanced to meet him, handing him my card, “this is an extraordinary business, isn’t it?” And he wrung my hand with a vigour that suggested a high degree of excitement and nervous tension.

“I am but an ambassador, sir,” I replied, falling into step with his, and commencing to pace up and down the corridor that led into the street. “I have no knowledge of the contents of the communication which I handed to you.”

“Quite so. Quite so,” he returned hurriedly. “I gathered as much from what was said by the writer to me. Still, I am told I can make what use of you I think fit, and, truth to say, that is one of the things that puzzle me. Shall I take you with me or shall I send you back?”

“Does that, sir, mean you decline?” I queried, remembering the superscription on the other envelope I was treasuring in a secret pocket within my vest.

“Good heavens, man, no!” he thundered. “Do you think I am a born fool or idiot, or what? Why, that terrible man Cuthbertson would give five years of his life, or one of his hands, to have a magnificent chance of a sensational coup such as this may prove to be if we are right and have a quarter of an ounce of luck. Just get this clear, will you? I accept—I accept—I accept.” And he enforced his words with a grip on my arm that almost crushed the flesh into the bones.