It bore no name, but there could be no doubt it was from Mr Blenkiron. I have seen a copy of it with Mr Neston’s commentary, and I can tell you it was great stuff. The writer warned his old friend that there might be trouble brewing in certain parts of the world which he did not specify, and he begged him, as he was a good American, to keep his eyes skinned. He also said that he, the writer, might have to ask some day soon for help, and that he counted on getting it. The funny thing was that the letter was in a kind of cypher. I understand that Mr Blenkiron used to write to his friends in a high-coloured version of our national slang, and that he had a good many private expressions that were Choctaw to those that did not know him. That letter might have been read as the perfectly natural expression of a light-headed American, who had been having too many cocktails and was writing drivel about his health and his habits and the fine weather. But, knowing how to construe it, it made Mr Neston sit up and take notice…There was another thing.

“I have said that the letter had no name, but it was signed all the same. It seems that in any very important and intimate communication Mr Blenkiron used to make a hieroglyphic of his surname and stick J. S. after it in brackets. That was meant to be a kind of S.O.S. to his friends that the thing was mighty important. Well, this letter had the hieroglyphic in three places, scrawled in as if the writer had been playing absent-mindedly with his pen. Mr Neston’s conclusion was that Mr Blenkiron had written it in some place where he was not allowed to communicate freely, and might be in considerable danger.”

I admitted that it looked like it, and said that if Blenkiron had been captured by bandits and held up to ransom, I could vouch for it, from what I knew of him, that his captors had done the worst day’s work of their lives. I asked what his Government was doing about it.

“Nothing official,” said Willis, “for we are in this difficulty. We are afraid of spoiling Mr Blenkiron’s game, whatever it may be. Washington has a very high respect for his talents, and we should hate to cross him by being officious. All the same, we are anxious, and that is why I have come to you.”

He proceeded to give me one of his lectures on international affairs. America, by his way of it, was in a delicate position, in spite of being rich enough to buy up the globe. She was trying to set her house in order, and it was a large-sized job, owing to the melting-pot not properly melting but leaving chunks of undigested matter. That was the real reason why she could not take a big hand in world-affairs—the League of Nations and so forth; she had too much to do at home, and wanted all her energies for it.

That was the reason, too, why she was so set on prohibition of all kinds—drink, drugs, and aliens. But her hand might be forced, if anything went wrong in the American continent itself, because of her Monroe Doctrine. She didn’t want any foreign complications at the moment. They would be very awkward for her, and possibly very dangerous, and she would resolutely keep out of them, unless they occurred, so to speak, opposite her front yard, in which case she would be bound to intervene. Therefore, if anyone wanted to do her the worst kind of turn, he would stir up trouble in some place like South America. Willis believed that Blenkiron had got on the track of something of the kind, and was trying to warn her.

That sounded reasonable enough, but what was not reasonable was Willis’s straight request that I should put on my boots and go and look for him. “We can’t do anything officially,” he repeated. “An American would be suspected where an Englishman would get through. Besides, I believe you are his closest friend.”

Of course I at once disabused him of that notion.