At the end of that time he was in a lonely section of country, where rounded knolls were surrounded by the dense growth of the jungle. In spite of the wildness of the spot, however, Ned saw that civilization had at some distant time made its mark there. Here and there low, broken walls of brick lifted from the grass, and the vegetation was not quite so luxuriant. In numerous places, as they advanced, the boys saw that the ground had once been leveled off as if to make way for a building, the ruins of which were still to be seen.