ring and throbbing with life about her. At first she tried very hard to think of other things. But the attempt was n't entirely a success. And before she had covered the first of the twelve miles, the sounds that from the first had been knocking at the door of her consciousness began to make an entrance.
If a person lies still long enough, he can usually hear his heart beating and the flow of his blood in his arteries. Any sound, no matter how faint, will make itself heard at last. It was this way with a very peculiar noise that crept up through the silence from the trail behind her. She would n't give it any heed at first. But in a very little while indeed, it grew so insistent that she could no longer disregard it.
Some living creature was trotting along on the trail behind, keeping approximately the same distance between them.
Foregoing any attempt to ignore it, she set her cool young mind to thinking what manner of beast it might be. Its step was not greatly different from that of a large dog,—except possibly a dog would have made slightly more noise. Yet she could n't even be sure of this basic premise, because this animal, whatever it might be, had at first seemingly moved with utmost caution, but now took less care with its
