Then he tried covertly to dry them against his shirt.

But he ceased this again, knowing that he must be of hair-trigger alertness to watch for the stamp of the white horse.
It occurred to him, also, that he was standing on a loose stone which might wobble when he pulled his gun, and he cursed himself silently for his hasty folly.

Pierre, doubtless, had noticed that stone, and therefore he had made the suggestion that they stand where they were.
Otherwise, how could there be that singular calm in the steady eyes which looked across at him?
Also, how explain the hunger of that stare?
Was not he McGurk, and was not this man whom he had already once shot down?
God, what a fool he had been not to linger an instant longer in that saloon in the old days and place the final shot in the prostrate body! In all his life he had made only one such mistake, and now that folly was pursuing him.

And now-- The foot of the white horse lifted--struck the rock.

The sound of its fall was lost in the explosion of two guns, and a ring of metal on metal.