Yet curious are the ways of fish. For on the next morning--a perfect trout day, with a light southwest wind and running clouds, after a night of showers--never a rise could we get. We tried all the casts of the day before--the Parmcheenie, the Jenny Lind, the Silver Doctor and the Brown Hackle. It was no use. Perhaps the half a hundred big fellows we had returned to the pool had warned all the others; perhaps there was some other unwritten, occult law which prohibited trout from feasting on this particular day. Finally Eddie, by some chance, put on a sort of a Brown Hackle affair with a red piece of wool for a tail--he called it a Red Tag fly, I think--and straightway from out of the tarry black depths there rose such a trout as neither of us had seen the day before. After that, there was nothing the matter with Eddie's fishing. What there was about this brown, red-tailed joke that tickled the fancy of those great silly trout, who would have nothing to do with any other lure, is not for me to say. The creature certainly looked like nothing that ever lived, or that they could ever have imagined before. It seemed to me a particularly idiotic combination and I could feel my respect for the intelligence of trout waning. Eddie agreed with me as to that. He said he had merely bought the thing because it happened to be the only fly he didn't have in his collection and there had been a vacant place in his fly-book. He said it was funny the trout should go for it as they did, and he laughed a good deal about it. I suppose it was funny, but I did not find it very amusing. And how those crazy-headed trout did act. In vain I picked out flies with the red and brown colors and tossed them as carefully as I could in just the same spots where Eddie was getting those great whoppers at every cast. Some mysterious order from the high priest of all trout had gone forth that morning, prohibiting every sort and combination of trout food except this absurd creature of which the oldest and mossiest trout had never dreamed. That was why they went for it. It was the only thing not down on the list of proscribed items. There was nothing for me to do at last but to paddle Eddie around and watch him do some of the most beautiful fishing I have ever seen, and to net his trout for him, and take off the fish, and attend to any other little wants incident to a fisherman's busy day. I did it with as good grace as I could, of course, and said I enjoyed it, and tried not to be nasty and disagreeable in my attitude toward the trout, the water, Eddie, and the camp and country in general. But, after all, it is a severe test, on a day like that, to cast and cast and change flies until you have wet every one in your book, without even a rise, and to see the other chap taking great big black and mottled fellows--to see his rod curved like a whip and to watch the long, lithe body leaping and gleaming in the net.