An examination of the ground there gave Grace a fresh clue, and, after stepping over to the brook and gazing at it briefly, she announced herself as ready to go back.

"What now?" asked Elfreda.

"After I get something we will return to camp. We must hold a consultation. I do not feel like deciding this problem alone."

"I know you have made a discovery, but beyond the fact that some one has trampled down the bushes beside the trail, and that a horse has been standing where we are now, I must confess that I am no wiser than before."

"You have done very well," smiled Grace. "Come with me and I will enlighten you further."

They walked briskly back to the edge of the trail where they had first found the bushes disturbed.

"Two men have stood here. If you will scrutinize the ground you will see the imprint of their hobnailed boots. They stood facing each other, just as you and I are doing at this moment. All at once they turned facing the trail and took a step toward it."

"Wait a moment! Wait a moment! You are going too fast for me, Grace Harlowe. Are you gifted with second sight that you know all this?"

"J. Elfreda, for goodness' sake use your eyes. The footprints are so plain that all you have to do, to understand, is to look at them. They tell the whole story up to a certain point," answered Grace.

"Go on."