I know." From then on it was war between them.

Spitz, as lead-dog and acknowledged master of the team, felt his supremacy threatened by this strange Southland dog.

And strange Buck was to him, for of the many Southland dogs he had known, not one had shown up worthily in camp and on trail.

They were all too soft, dying under the toil, the frost, and starvation.

Buck was the exception.