Jack London

There was a hint in it of laughter, but of a laughter more terrible than any sadness-a laughter that was mirthless as the smile of the sphinx, a laughter cold as the frost and partaking of the grimness of infallibility. It was the masterful and incommunicable wisdom of eternity laughing at the futility of life and the effort of life. It was the Wild, the savage, frozen-hearted Northland Wild. But there was life, abroad in the land and defiant.
Down the frozen waterway toiled a string of wolfish dogs. Their bristly fur was rimed with frost. Their breath froze in the air as it left their mouths, spouting forth in spumes of vapour that settled upon the hair of their bodies and formed into crystals of frost. Leather harness was on the dogs, and leather traces attached them to a sled which dragged along behind. The sled was without runners.
It was made of stout birch-bark, and its full surface rested on the snow. The front end of the sled was turned up, like a scroll, in order to force down and under the bore of soft snow that surged like a wave before it. On the sled, securely lashed, was a long and narrow oblong box.