In the afternoon a thick cloud threatened us, but it proved to be the condensation of vapor that announces a cold wave. There was soon a marked fall in the temperature, and as night drew near it became pretty certain that we were going to have a cold time of it. The wind rose, the vapor above us thickened and came nearer, until it began to drive across the summit in slender wraiths, which curled over the brink and shut out the view. We became very diligent in getting in our night wood, and in gathering more boughs to calk up the openings in the hut. The wood we scraped together was a sorry lot, roots and stumps and branches of decayed spruce, such as we could collect without an axe, and some rags and tags of birch bark. The fire was built in one corner of the shanty, the smoke finding easy egress through large openings on the east side and in the roof over it. We doubled up the bed, making it thicker and more nest-like, and as darkness set in, stowed ourselves into it beneath our blankets. The searching wind found out every crevice about our heads and shoulders, and it was icy cold. Yet we fell asleep, and had slept about an hour when my companion sprang up in an unwonted state of excitement for so placid a man. His excitement was occasioned by the sudden discovery that what appeared to be a bar of ice was fast taking the place of his backbone. His teeth chattered, and he was convulsed with ague. I advised him to replenish the fire, and to wrap himself in his blanket and cut the liveliest capers he was capable of in so circumscribed a place. This he promptly did, and the thought of his wild and desperate dance there in the dim light, his tall form, his blanket flapping, his teeth chattering, the porcupines outside marking time with their squeals and grunts, still provokes a smile, though it was a serious enough matter at the time. After a while, the warmth came back to him, but he dared not trust himself again to the boughs; he fought the cold all night as one might fight a besieging foe. By carefully husbanding the fuel, the beleaguering enemy was kept at bay till morning came; but when morning did come, even the huge root he had used as a chair was consumed. Rolled in my blanket beneath a foot or more of balsam boughs, I had got some fairly good sleep, and was most of the time oblivious to the melancholy vigil of my friend. As we had but a few morsels of food left, and had been on rather short rations the day before, hunger was added to his other discomforts. At that time a letter was on the way to him from his wife, which contained this prophetic sentence: "I hope thee is not suffering with cold and hunger on some lone mountain-top."