that it had run away, because the sod was torn up where it had jumped. . . . Ten minutes later I knew that the rider had not been in the saddle when the horse jumped; I knew what it was that had frightened the horse; and I knew that the thing had occurred the day before. Now, how did I know that?
"Listen! I put my horse into the tracks of that other horse under the tree and studied the ground. Immediately I saw where the weeds beside the path had been crushed, as though some animal had been lying down there, and in the very center of that bed I saw a little heap of fresh earth. That was strange, Dix, that fresh earth where the animal had been lying down! It had come there after the animal had got up, or else it would have been pressed flat. But where had it come from?
"I got off and walked around the apple tree, moving out from it in an ever-widening circle. Finally I found an ant heap, the top of which had been scraped away as though one had taken up the loose earth in his hands. Then I went back and plucked up some of the earth. The under clods of it were colored as with red paint. . . . No, it wasn't paint.
"There was a brush fence some fifty yards away. I went over to it and followed it down.
"Opposite the apple tree the weeds were again crushed as though some animal had lain there. I sat down in that place and drew a line with my eye across a log of the fence to a limb of the apple tree.
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