Pausing only long enough to round up one or two sheep which were breaking loose from the bunch Chum was off again in headlong chase of still another and another and another stray.

Link Ferris, in blank incredulity, stood gaping at the picture before him—staring at the tireless swiftness of his dog in turning back and rounding up a scattered flock which Ferris himself could not have bunched in twenty times the space of minutes. Chum, he noted, did not touch one of the foolish beasts. His bark and his zigzag dashes served the purpose, without the aid of teeth or of actual contact.

Presently, as the dumbfounded man gazed, the last stray was added to the milling, bleating bunch, and Chum was serenely trotting to and fro, driving back such of the sheep as sought to break loose from the huddle. Terrified and trembling, but mastered, the flock cowered motionless. The work was done.

As in a dream Link tumbled toward the prisoners. His mind functioning subconsciously, he took up his interrupted task of driving them to pasture. The moment he succeeded in getting them into motion they broke again. And again, like a furry whirlwind, Chum was encircling them; chasing the strays into place. He saw, without being told, the course his master was taking, and he drove his charges accordingly.

Thus, in far less time and in better order than ever before, the flock reached the rickety gateway of the stone-strewn sheep pasture and scuttled jostlingly in through it.

Link shut the gate after them. Then, still in a daze, he turned on the dog.

"Chum," he said confusedly, "it don't make sense to me, not even yet. I don't get the hang of it. But I know this much: I know you got ten times the sense what I'VE got. Where you got it an' how you got it the good Lord only knows. But you've got it. I—I was figgerin' on lickin' you 'most to death, a few minutes back. Chum. Honest, I was. I'm clean 'shamed to look you in the face when I think of it. Say! Do me a favor, Chum. If ever I lift hand to lick you, jes' bite me and give me hydrophoby. For I'll sure be deservin' it. Now come on home!"

He patted the silken head of the jubilant dog as he talked, rumpling the soft ears and stroking the long, blazed muzzle. He was sick at heart at memory of his recent murderous rage at this wonder-comrade of his.

Chum was exultantly happy. He had had a most exhilarating ten minutes. The jolliest bit of fun he could remember in all his two years of life. The sight of those queer sheep—yes, and the scent of them, especially the scent—had done queer things to his brain; had aroused a million sleeping ancestral memories.

He had understood perfectly well his master's order that he leave them alone. And he had been disappointed by it. He himself had not known clearly what it was he would have liked to do to them. But he had known he and they ought to have some sort of relationship. And then at the gesture and the snarled command of "Go get them!" some closed door in Chum's mind had swung wide, and, acting on an instinct he himself did not understand, he had hurled himself into the gay task of rounding up the flock.