Chapter 30

In the course of ages the caves had appeared, and had been shaped into adjuncts of the temples. With the advance of still later epochs all the limestone veins of the region were hollowed out by ground waters, so that the mountains, the foothills, and the plains below them were a veritable network of connected caverns and galleries. Many graphic sculptures told of explorations deep underground, and of the final discovery of the Stygian sunless sea that lurked at earth's bowels. * * * * * This…