Now Irvine was a man of impulse, a poet. He got off the train at the next station, bought a piece of meat at a butcher shop, and captured the vagrant on the outskirts of the town. The return trip was made in the baggage car, and so Wolf came a second time to the mountain cottage. Here he was tied up for a week and made love to by the man and woman. But it was very circumspect love-making. Remote and alien as a traveller from another planet, he snarled down their soft-spoken love-words. He never barked. In all the time they had him he was never known to bark. To win him became a problem. Irvine liked problems. He had a metal plate made, on which was stamped: RETURN TO WALT IRVINE, GLEN ELLEN, SONOMA COUNTY, CALIFORNIA. This was riveted to a collar and strapped about the dog's neck. Then he was turned loose, and promptly he disappeared. A day later came a telegram from Mendocino County. In twenty hours he had made over a hundred miles to the north, and was still going when captured. He came back by Wells Fargo Express, was tied up three days, and was loosed on the fourth and lost. This time he gained southern Oregon before he was caught and returned. Always, as soon as he received his liberty, he fled away, and always he fled north. He was possessed of an obsession that drove him north. The homing instinct, Irvine called it, after he had expended the selling price of a sonnet in getting the animal back from northern Oregon. Another time the brown wanderer succeeded in traversing half the length of California, all of Oregon, and most of Washington, before he was picked up and returned "Collect." A remarkable thing was the speed with which he travelled. Fed up and rested, as soon as he was loosed he devoted all his energy to getting over the ground. On the first day's run he was known to cover as high as a hundred and fifty miles, and after that he would average a hundred miles a day until caught. He always arrived back lean and hungry and savage, and always departed fresh and vigorous, cleaving his way northward in response to some prompting of his being that no one could understand. But at last, after a futile year of flight, he accepted the inevitable and elected to remain at the cottage where first he had killed the rabbit and slept by the spring. Even after that, a long time elapsed before the man and woman succeeded in patting him. It was a great victory, for they alone were allowed to put hands on him. He was fastidiously exclusive, and no guest at the cottage ever succeeded in making up to him. A low growl greeted such approach; if any one had the hardihood to come nearer, the lips lifted, the naked fangs appeared, and the growl became a snarl--a snarl so terrible and malignant that it awed the stoutest of them, as it likewise awed the farmers' dogs that knew ordinary dog-snarling, but had never seen wolf-snarling before.