When White Fang was nearly five years old, Grey Beaver took him on another great journey, and long remembered was the havoc he worked amongst the dogs of the many villages along the Mackenzie, across the Rockies, and down the Porcupine to the Yukon. He revelled in the vengeance he wreaked upon his kind. They were ordinary, unsuspecting dogs. They were not prepared for his swiftness and directness, for his attack without warning. They did not know him for what he was, a lightning-flash of slaughter. They bristled up to him, stiff-legged and challenging, while he, wasting no time on elaborate preliminaries, snapping into action like a steel spring, was at their throats and destroying them before they knew what was happening and while they were yet in the throes of surprise. He became an adept at fighting. He economised. He never wasted his strength, never tussled. He was in too quickly for that, and, if he missed, was out again too quickly. The dislike of the wolf for close quarters was his to an unusual degree. He could not endure a prolonged contact with another body. It smacked of danger. It made him frantic. He must be away, free, on his own legs, touching no living thing. It was the Wild still clinging to him, asserting itself through him. This feeling had been accentuated by the Ishmaelite life he had led from his puppyhood. Danger lurked in contacts. It was the trap, ever the trap, the fear of it lurking deep in the life of him, woven into the fibre of him. In consequence, the strange dogs he encountered had no chance against him. He eluded their fangs. He got them, or got away, himself untouched in either event. In the natural course of things there were exceptions to this. There were times when several dogs, pitching on to him, punished him before he could get away; and there were times when a single dog scored deeply on him. But these were accidents. In the main, so efficient a fighter had he become, he went his way unscathed. Another advantage he possessed was that of correctly judging time and distance. Not that he did this consciously, however. He did not calculate such things. It was all automatic. His eyes saw correctly, and the nerves carried the vision correctly to his brain. The parts of him were better adjusted than those of the average dog. They worked together more smoothly and steadily. His was a better, far better, nervous, mental, and muscular co-ordination. When his eyes conveyed to his brain the moving image of an action, his brain without conscious effort, knew the space that limited that action and the time required for its completion. Thus, he could avoid the leap of another dog, or the drive of its fangs, and at the same moment could seize the infinitesimal fraction of time in which to deliver his own attack. Body and brain, his was a more perfected mechanism. Not that he was to be praised for it. Nature had been more generous to him than to the average animal, that was all.