Necessity is the best sharpener of wits, and, in less than half an hour, Glen was fishing with a line made of fibres from the inner skin of spruce bark, a hook formed of a bent pin, baited with a grasshopper, and the whole attached to a crooked bit of branch. Not only was he fishing, but he was catching the most beautiful brook-trout he had ever seen almost as fast as he could re-bait and cast his rude tackle. There was no art required. Nobody had ever fished in these waters before, and the trout were apparently as eager to be caught as he was to catch them.