"I do know it, but it is just that apex that I am determined to have under my feet for ten minutes. The failure of others is no argument for us." "Just as you say," I rejoined. "But I suppose there is no indiscretion in asking whether this little climb has any relation to the mystery?" "If it didn't have an important relation to the clearing up of that dark thing I wouldn't risk my neck in such an undertaking," was the reply. Accordingly, the next morning we set out for the peak. All previous climbers, as we were aware, had attacked it from the west. That seemed the obvious thing to do, because the westward slopes of the mountain, while very steep, are less abrupt than those which face the rising sun. In fact, the eastern side of the Grand Teton appears to be absolutely unclimbable. But both Hall and I had had experience with rock climbing in the Alps and the Dolomites, and we knew that what looked like the hardest places sometimes turn out to be next to the easiest. Accordingly we decided--the more particularly because it would save time, but also because we yielded to the common desire to outdo our predecessors--to try to scale the giant right up his face. We carried a very light but exceedingly strong rope, about five hundred feet long, wore nail-shod shoes, and had each a metal-pointed staff and a small hatchet in lieu of the regular mountaineer's axe. Advancing at first along the broken ridge between two gorges we gradually approached the steeper part of the Teton, where the cliffs looked so sheer and smooth that it seemed no wonder that nobody had ever tried to scale them. The air was deliciously clear and the sky wonderfully blue above the mountains, and the moon, a few days past its last quarter, was visible in the southwest, its pale crescent face slightly blued by the atmosphere, as it always appears when seen in daylight. "Slow westering, a phantom sail-- The lonely soul of yesterday." Behind us, somewhat north of east, lay the Syx works, with their black smoke rising almost vertically in the still air. Suddenly, as we stumbled along on the rough surface, something whizzed past my face and fell on the rock at my feet. I looked at the strange missile, that had come like a meteor out of open space, with astonishment. It was a bird, a beautiful specimen of the scarlet tanagers, which I remembered the early explorers had found inhabiting the Teton canyons, their brilliant plumage borrowing splendor from contrast with the gloomy surroundings. It lay motionless, its outstretched wings having a curious shrivelled aspect, while the flaming color of the breast was half obliterated with smutty patches. Stooping to pick it up, I noticed a slight bronzing, which instantly recalled to my mind the peculiar appearance of the victims of the attack on the mine. "Look here!" I called to Hall, who was several yards in advance. He turned, and I held up the bird by a wing. "Where did you get that?" he asked.