A lesser dog might readily have attached himself to one of the various friendly folk who chanced to meet him and to give him a kindly word or call. A lesser dog, too, might have chosen a home at one of the farms scattered through the broad stretch of country Buff traversed. At any of a dozen places his beauty and his prowess at herding would have won for the collie a warm and lasting welcome.

But none of this was for Buff. He had known but one master. Losing Trent, he was fated to be forever masterless, unless he should chance to find the man he had lost. And, being only a dog, he knew no better way of finding him than by this everlasting and aimless search.

On a late September afternoon, he was roused from a troubled nap in the long grass and bushes at the verge of a field, by the sound of a mad-galloping horse and of a woman’s brave yet frightened calls to the runaway. Looking over the fringe of grass, towards the road, a furlong distant, he saw a fast-moving cloud of yellow-grey dust, which resolved itself into a hazy screen for a horse and light buggy.

The horse—a young and nervous brute—had taken fright at the running of a woodchuck across the road under his feet, and had sprung forward with a suddenness that snapped his check-rein. The swinging check smote him resoundingly again and again, on the neck and across the face, turning his first fright into panic, and making useless the efforts of the driver to bring him down.

A woman was driving. She was neither young nor beautiful. She had self-possession, and she had a more than tolerable set of driving hands. She was keeping the maddened horse more or less in the road, and was sawing with valorous strength on one rein while she held the other steady. Which was all the good it did her. For the brute had the bit between his teeth.

Buff arrived at the road-edge just as one of the two light reins broke under the undue strain put on it.

Before the driver could lighten the pull on the remaining rein its impulse had jerked the horse’s low-laid head far to one side. His rushing body prepared to follow the lead of his head towards a steep roadside bank some ten feet deep, with a scattering of broken rock at the bottom.

Then it was that the horse became dimly aware of a furry shape which whizzed in front of him on that side, and of a flying head that struck for his nose. A stinging slash on the left nostril sent the runaway veering from the bank-edge, and plunging toward the telegraph pole on the other side of the road. He was met and turned again by a second slash from one of the collie’s curved eye-teeth. On the same moment Buff stopped slashing and let his bulldog ancestry take control.

Thus the horse was assailed by a full double set of teeth that buried themselves in his bleeding nostrils, and that hung on.