When we were nearly half-way up, and just as we had paused to catch our breath, several rifle shots rang out in quick succession, which, from some peculiar echo of the canon, sounded as if they had been fired beneath us. Upon turning, we could see nothing of our three mates or the horses--they were hidden from our view by the timber. Fancying they were attacked from the rear, I was about to call a return to their relief, when I saw Thornton run to the near edge of the timber, drop on one knee behind a tree, and open fire on the cliff-crest directly above our heads. Whirling and looking up, I was just in time to see eight or ten men bob up on the crest and take quick snap shots at the three of us in the lead, and then duck to cover. We were so nearly straight under them, however, that they overshot us, although they were barely one hundred yards from us. Dropping behind boulders we peppered back at the flashes of their rifles, which was all we three in the lead thereafter saw of them; for after the first volley most of them lay close and directed their fire at the men in the edge of the timber, but occasionally a rifle was tipped over the edge of a boulder and fired at random in our direction. And all the time they were yelling at us, "_Que vienen, puercos! Que vienen!_" (Come on, pigs! Come on!) I was puzzled. Both Cress and I thought they were Mexicans, but Tomas insisted they were Lipans. And sure enough it was the Lipans all spoke Spanish and dressed like Mexican peons. Whoever they might be, we could not stay where we were. By the firing and voices there were at least a dozen of them, and obviously it was only a matter of moments before they would occupy the two flanking walls and have us openly exposed. It was a bad dilemma. Retreat was impossible, down a gorge commanded at short range from both sides. If we took shelter in it, they could starve us out; if we attempted to descend it, they could easily pick us off; if any of us escaped back to the plain it would only be to incur greater exposure if they pursued, or probably to perish of hunger before we could reach any settlements. Thus the situation called for no reflection--it was charge and dislodge them, or die. Yelling to the boys below to close up on us, we three settled down to the maintenance of the hottest fire we could deliver at the rifle flashes above us, to cover their advance. Luckily there were many boulders scattered along the grassy treeless slope they had to advance across to reach the foot of the cliff. Thus by darting from one boulder to another they had tolerable cover and were able to reach us with no worse casualties than a comparatively slight flesh wound through Manuel's side and the shooting away of Thornton's belt buckle.