After the fashion of his kind, he wasted no time in standing nonplussed. Instantly, he set off at a hand-gallop, nose to ground, running in a wide circle; in the hope that some arc of that circle might intersect Fenno’s lost trail. It was a ruse he had employed a hundred times in seeking for strayed sheep. But always his questing nostrils, at such times, had inhaled the good clean smell of earth and herb. Now they were filled with the stench of spilled gasoline and of grease. They were baffled by the passing of countless feet and by the numberless and nameless reeks of the city streets.

Undeterred by the sickening strange odors, he continued his hunt; galloping in the broad circle he had begun. Head down, all his senses concentrated on the finding of the trail he sought, he was completing the circle when his nerves were jarred by a yelling voice just above him. There were menace and vexation in the voice. It was accompanied by a deafening blare. Instinctively, Treve shrank aside as he looked up to discern the dual noise’s origin.

The sidewise move saved him from a hideous and too-common form of death. For, as he shifted his direction, a fast-going limousine’s fender grazed his flank with such force as to send him rolling over and over in the filth of the asphalt roadway. The chauffeur, who had shouted and honked at him, yelled back a mouthful of oaths. But Treve did not hear them. Scrambling to his feet, jarred and muddied and breathless, he was barely in time to dart out of the way of a motor-truck that was bearing heavily down upon him.

The wide street was alive with these engines of destruction, all seemingly bent upon his death. Bewilderment swept the luckless dog’s brain. For an instant he stood, glancing pitiably to left and right; trying to find a pathway of escape from among the tangle of vehicles.

Then the ever-ready wit of a trained collie came to his aid. This mid-street, assuredly, was no place for him. The sidewalk offered shelter, with no worse perils than the stream of passing pedestrians. Toward the sidewalk he made his way.

It is in such safety-seeking efforts that the average dog, in like conditions, becomes confused and is run over. Treve was not confused. With the skill and dexterity of a timber wolf he sped in and out of the traffic, timing his every step to a nicety; enacting prodigies of time-and-distance gauging.

In another few seconds he was on the sidewalk; nearly a block distant from the armory.

The collie was panting; but not from fatigue. He was panting through excitement and nervousness. Light froth gathered on his lips and tongue. His rich coat was one smear of muck and mud. He was collarless. His aspect was ferocious and disreputable. People made plenty of room for him as he swung on down the sidewalk, nose to ground, still seeking Fenno’s lost trail.

His dangerous circling of mid-street had failed to locate that trail. Collie-like, he knew there was no use in casting back over the same ground again. Henceforth, he must hunt on mere chance and with nothing to guide him. It was not a hopeful prospect. Fenno had left the armory. That much Treve’s eyes and nose had told him. Fenno had walked as far as the curbstone. There his trail had ended.