I crossed and recrossed the stream several times without difficulty, for there were many good fords. At one o’clock I was at the foot of the saddle; for four hours I mounted, the last two on the snow, where the going was easier; by five, I was within ten minutes of the top, in a state of excitement greater, I think, than I had ever known before. Ten minutes more, and the cold air from the other side came rushing upon me. A glance. I was _not_ on the main range. Another glance. There was an awful river, muddy and horribly angry, roaring over an immense riverbed, thousands of feet below me. It went round to the westward, and I could see no farther up the valley, save that there were enormous glaciers which must extend round the source of the river, and from which it must spring. Another glance, and then I remained motionless. There was an easy pass in the mountains directly opposite to me, through which I caught a glimpse of an immeasurable extent of blue and distant plains. Easy? Yes, perfectly easy; grassed nearly to the summit, which was, as it were, an open path between two glaciers, from which an inconsiderable stream came tumbling down over rough but very possible hillsides, till it got down to the level of the great river, and formed a flat where there was grass and a small bush of stunted timber. Almost before I could believe my eyes, a cloud had come up from the valley on the other side, and the plains were hidden. What wonderful luck was mine! Had I arrived five minutes later, the cloud would have been over the pass, and I should not have known of its existence. Now that the cloud was there, I began to doubt my memory, and to be uncertain whether it had been more than a blue line of distant vapour that had filled up the opening. I could only be certain of this much, namely, that the river in the valley below must be the one next to the northward of that which flowed past my master’s station; of this there could be no doubt. Could I, however, imagine that my luck should have led me up a wrong river in search of a pass, and yet brought me to the spot where I could detect the one weak place in the fortifications of a more northern basin? This was too improbable. But even as I doubted there came a rent in the cloud opposite, and a second time I saw blue lines of heaving downs, growing gradually fainter, and retiring into a far space of plain. It was substantial; there had been no mistake whatsoever. I had hardly made myself perfectly sure of this, ere the rent in the clouds joined up again and I could see nothing more. What, then, should I do? The night would be upon me shortly, and I was already chilled with standing still after the exertion of climbing. To stay where I was would be impossible; I must either go backwards or forwards. I found a rock which gave me shelter from the evening wind, and took a good pull at the brandy flask, which immediately warmed and encouraged me.