It did not seem possible that any retreat that would shelter them could escape the eyes of the lad.
"I haven't seen any such place yet, so, if the Indian is trying any such trick, he can't do it here without my seeing him, and if I do--Heaven save me!" He sprang to one side, again pressing himself back against the rock, as though trying to flatten his body there in order to escape the trampling hoofs.

At the same time he cocked his rifle, with the purpose of giving the finishing touch to the Apache who had alarmed him once too often in this fashion..