Reaching his master’s farm at grey of dawn, Buff found the house and outbuildings deserted. The weeds had crept thick among the once trim crops, and there was an air of desolation brooding over the land.

Buff could not know that of all Boone Lake, Ruth Hammerton alone had refused to accept as true the report that Michael Trent had left home of his own accord. She had visited the deserted farm with her father, as soon as the story had been repeated to her, and had prevailed on Mr. Hammerton to send one of his farm-hands to transfer to the Hammertons’ place Trent’s suffering livestock for safe-keeping.

It was enough for the collie to know his master was not at home, and that he had not been at home since the night of his kidnapping. Buff did not belong to the silly and professionally loyal type of dog that curls itself on its owner’s vacant doorstep and starves to death.

There was no time to think of such selfish matters as death, while Michael Trent remained to be found and his two enemies to be tracked down.

So, aimlessly, he took up his search.

That night he circled Boone Lake, investigating every house and path that Trent had been wont to frequent, visiting first the Hammerton place and last the market square—the scene of his triumph over Bayne, the drover.

Dawn found him miles away, ever seeking, ever wandering, living on slain forest creatures, obsessed and haunted by his overmastering impulse to find Trent.

Once, as he trotted along the ridge of a wooded hill, Buff saw in the valley below a farmer trying with pitiable ill-success to round up a flock of sixty sheep that had bolted through the pasture gate and were scattering over the surrounding fields and woods; instead of marching toward their distant fold, whose gate stood invitingly open.

Moved by an instinct he did not stay to define or to resist, the collie swept down the ridge and into the valley below. The harassed farmer beheld descending on his stampeded flock a bolt of tawny-and-white lightning that whirled in and out among the galloping strays as if bent on their wholesale destruction.

While the man was yelling his lungs out and seeking a stone wherewith to brain the marauder, he suddenly came to a foolish halt, and stood gaping at the spectacle before him.