Safety was hundreds of yards away in the house; the skirts tangled about her legs; and behind her the dull impacts of the bull's hoofs swept close and closer.
Then she heard a snarl in front, a deep-throated, murderous snarl, and she saw Black Bart racing towards her.

He whizzed by her like a black thunderbolt; there was a roar and bellow behind her, and at the same time she stumbled over a fence-board and fell upon her knees.

But when she cast a glance of terror behind her she saw the bull lying on its side with lolling tongue and glazing eyes and the fangs of Black Dart were buried in its throat.
When she reached this point in her musings her glance naturally turned towards the wolf-dog, and she started violently when she saw that Bart was slinking towards her, trailing the helpless leg.

The moment he felt her eyes upon him, Bart dropped down, motionless, with a wicked baring of his teeth; his eyes closed, and he seemed, as usual, dreaming in the sun.
Was the brute stalking her?
It was worse, in a way, than the ordeal of the day before, this stealthy, noiseless approach.

And in her panic she first thought of springing from her chair and reaching a distance which the chain would keep him from following.