Slowly, as I stood there, my stupidity gave place to a dull anger. I don't think it was anger against anybody in particular; it was as objectless as it was useless and exhausting. But if you have had that gall in your mouth that makes all the world taste bitter, you will understand my miserable rage. This changed presently to a shivering, weeping rage The wide portalled door of a house opposite opened, and a servant-girl came down the shallow steps to post a letter; I daresay she supposed I was unwell or a drunkard; and a passer-by might have concluded that I had an assignation with her, or had just had a quarrel. Then, when I had had a little ease of my anger, I pulled myself together and banished it again. Now that I had come, tardily enough, out of my fool's paradise of the past weeks, I had other things than purposeless anger to think of. I moved away from the railings; the maid, returning from the posting of her letter, quickened her steps to avoid me; and I walked slowly northeastward through the Square. Quickly I became calmer still. Soon I was calm enough to recognise that I needed this. "What," I said ironically to myself, thunder-struck at a thing so very surprising! "Did you think that because your head was in the clouds ... come, come, you'd better look at the thing; you mayn't have any too much time, you know; if I were you I'd take a walk and think it out." I turned into Grays Inn Road, and began to take my own advice. While I had no reason to suppose that she had fallen in love with him, I knew almost for a certainty that he had not with her. He was not at that stage yet. Already he was nibbling at other pleasures, and with a youngster of his kind one or two nibbles mean three or four. They may even mean ten or twelve. So far so good. I was still in time. I was, in fact, so far beforehand that, of the three of us, I was probably the only one who knew, not what had happened (which was nothing) but what might happen--which was everything. That I took for the starting-point of my consideration. And I saw that that, at the outset, was an enormous advantage to me. Not only could I watch events, but I could watch them to infinitely better purpose that I knew what to look for. They, when it came--the "it" I had in my mind--(I ought rather to say did I suffer it to come) would not, in the bewildering wonder of it, know what had overtaken them; while I, by a timely use of care and skill, might even turn to advantage those disadvantages of mine which, huge as a church, might have been deemed to outweigh everything else. No more perfect cover for hidden motion could have been devised than I already possessed. Who suspects, of anything, one whom to suspect would on the face of it be absurd? I could, did I find this necessary, use practically the whole of my conspicuous life and narrow circumstances as a screen.