The tunnel was only a mile long, and in a short space of time they emerged on to a vast natural platform at the very bottom of the cañon. To the left, looking from the tunnel, the great gap ended at the distance of a quarter of a mile, and through the opening they could see the flat extent of plains, and the distant pinnacles of mountains. On the right the cañon turned suddenly to one side, and they saw themselves shut in, so to speak, by vast rocky walls towering up to the height of some thousands of feet. The torrent gushed and raged a little distance below the natural terrace, and on one side of it arose a narrow flight of steps leading to the path which ended at the sacred city itself. So difficult had been the way that it was now nearly midnight, so the wearied troops camped on the terrace, and made a meal as best they could. There was but little chance of their presence being discovered by any human being in that desolate cañon, but Rafael, judging it best to be on the safe side, forbade them to light fires. Fortunately the night was warm, every man possessed a zarape, and they slept in comparative comfort. It was a critical period, as discovery by any wandering Indian meant death to the whole band in that narrow gulch; but, to Rafael's relief, the dawn broke showing not a human being to be in sight. They saw the narrow path winding like a thread along the rocks in the distance, and it looked a dangerous way to go. It was, however, the only way to the city, and once they arrived under the pierced wall, they could keep the path open for their reinforcements to follow. Jack made the men eat a hearty meal before starting, and would liked to have made them drink hot coffee, but that there was a risk in lighting fires. At the first faint light of morning, which was about six o'clock, the men having finished their meal, looked to their rifles and ammunition, flung their zarapes round their shoulders, and prepared to ascend the narrow staircase. Still keeping Pepe before all as guide, lest he should send them forward into some unknown danger, the two young men mounted to the path, and in the space of an hour the whole company were winding along two abreast. Below they looked down thousands of feet, above the cliffs arose stern and precipitous, but the path, though narrow, was well-made and safe, so, two by two, they marched forward in silence. "In a couple of hours the rest of the troops will reach the torrent," said Jack to Rafael, as they walked along; "and by the time we gain the pierced wall, they will not be far behind." "Once we are on the platform you speak of, I do not care, Juan," replied Rafael, grimly; "but I hope by all the saints the Indians will not see us before we can get off this path. They could cut us off with the greatest of ease."