was at a point where the face of the cliff was for the first time split into a narrow cleft. Inside the cleft was a second guidance mark, which pointed right up it with the tip somewhat elevated, as if the spot indicated were above the level of the ground.
It was a solemn place, for the walls were so gigantic and the slit of blue sky so narrow and so obscured by a double fringe of verdure, that only a dim and shadowy light penetrated to the bottom. We had had no food for many hours, and were very weary with the stony and irregular journey, but our nerves were too strung to allow us to halt. We ordered the camp to be pitched, however, and, leaving the Indians to arrange it, we four, with the two half-breeds, proceeded up the narrow gorge.
It was not more than forty feet across at the mouth, but it rapidly closed until it ended in an acute angle, too straight and smooth for an ascent. Certainly it was not this which our pioneer had attempted to indicate. We made our way back—the whole gorge was not more than a quarter of a mile deep—and then suddenly the quick eyes of Lord John fell upon what we were seeking. High up above our heads, amid the dark shadows, there was one circle of deeper gloom. Surely it could only be the opening of a cave.
The base of the cliff was heaped with loose stones at the spot, and it was not difficult to clamber up. When we reached it, all doubt was removed. Not only was it an opening into the rock, but on the side
