I stopped and began to wonder, and then I heard the whistle again. It was still ahead of me, so on I walked and once more the same thing occurred. This time I paused for at least another ten minutes, but nobody appeared and nothing whatever happened. There I was, utterly alone once more, with the land growing black and the sea dim and not a sound now even from the sea gulls. III ALONE AGAIN "The man has suspected me!" I said to myself. It was an unpleasant conclusion, but the more carefully I thought over every little circumstance the more certain I felt it was the true one. To begin with, there was the way in which he kept his face concealed after the first few sentences we exchanged. Then there was that curious question about the sheep. It must have been a password--I saw that now, and I could have kicked myself for not seeing it sooner. Of course I had no idea of the proper answer, but I might at least have replied with some equally cryptic sentence and tried to bluff him into thinking I was using a different code. As it was, I had made it perfectly obvious that I had missed the point absolutely. Finally there was his conduct in slipping away and leaving me stranded like this. Surely it was the very last trick to play on an accomplice. In fact it settled the matter. But why then did he whistle--and, moreover, whistle twice? For a few minutes I was utterly puzzled, and then an explanation flashed upon me. He wished to lead me in this particular direction! And why? Evidently because he himself was living or hiding in the other. I tried to put myself in his shoes and think what I would do myself, and if I had had the wit to think of it, that would obviously be the soundest thing. So obvious did it seem to me that I decided to set to work on that assumption. First of all I walked a little further to see if I could test this theory, and in a minute or two I saw dimly ahead of me houses near the beach. I stopped and thought again. Could it possibly be that this was the refuge he was providing and that he did not suspect me after all? "In that case," I said to myself, "would any man in his senses use such a vague and misleading method of conducting a friend, especially when a mistake might be--and probably would be--fatal to his schemes? Obviously not!" On the other hand, these houses fitted excellently into the theory that he wanted me to take shelter there simply because they were well removed from his own lair. "And then what's the fellow doing himself all this time?" I thought. "Evidently scuttling back in the opposite direction!" So back I turned and set out on a very cheerless and solitary walk. There was no sense of immediate action ahead now, no anticipation of any further excitement this night, and, the more I came to think of it, not one chance in a thousand of stumbling upon the man again even though I were really heading towards him.