By the time Chum could limp around on the fasthealing foreleg, he and Link had established a friendship that was a boon to both and a stark astonishment to Ferris. Link had always loved animals. He had an inborn "way" with them. Yet his own intelligence had long since taught him that his "farm critters" responded but dully to his attempts at a more perfect understanding. He knew, for example, that the horse he had bred and reared and had taught to come at his call, would doubtless suffer the first passing stranger to mount him and ride him away, despite any call from his lifelong master. He knew that his presence, to the cattle and sheep, meant only food or a shift of quarters; and that an outsider could drive or tend them as readily as could he on whose farm they had been born. Their possible affection for him was a hazy thing, based solely on what he fed them and on their occasional mild interest in being petted. But with Chum it was all different. The dog learned quickly his new master's moods and met them in kind. The few simple tricks Link sought to teach him were grasped with bewildering ease. There was a human quality of sympathy and companionship which radiated almost visibly from Chum. His keen collie brain was forever amazing Ferris by its flashes of perception. The dog was a revelation and an endless source of pleasure to the hermit-farmer. When Chum was whole of his hurt and when the injured leg had knit so firmly that the last trace of lameness was gone, Link fell to recalling his father's preachments as to the havoc wrought by dogs upon sheep. He could not afford to lose the leanest and toughest of his little sheep flock--even as price for the happiness of owning a comrade. Link puzzled sorely over this. Then one morning it occurred to him to put the matter up to Chum himself. Hitherto he had kept the dog around the house, except on their daily walks; and he had always tied him when driving the sheep to or from pasture. This morning he took the collie along when he went out to release the tiny flock from their barnyard fold and send them out to graze. Link opened the fold gate, one hand on Chum's collar. Out billowed the sheep in a ragged scramble. Chum quivered with excitement as the woolly catapults surged past him. Eagerly he looked up into his master's face, then back at the tumbling creatures. "Chum!" spoke Ferris sharply. "Leave 'em be! Get that? LEAVE 'EM BE!" He tightened his hold on the collar as he gave the command. Chum ceased to quiver in eagerness and stood still, half puzzled, half grieved by the man's unwonted tone. The sheep, at sight and smell of the dog, rushed jostlingly from their pen and scattered in every direction, through barnyard and garden and nearer fields. Bleating and stampeding, they ran. Link Ferris blinked after them, and broke into speech. Loudly and luridly he swore.