A river of clear water burst from the rock, but only to vanish again into a chasm. Such changes in the course of streams are common in countries subject to earthquakes and to the disruption caused by volcanic agency. The ancients believed that this mysterious cavern was haunted ground. In the rumble and roar of the waters they seemed to hear the clash of cymbals touched by hands divine.(452) (M115) If now, quitting the cavern, we return by the same path to the summit of the cliffs, we shall find on the plateau the ruins of a town and of a temple at the western edge of the great Corycian chasm. The wall of the holy precinct was built within a few feet of the precipices, and the sanctuary must have stood right over the actual cave and its subterranean waters. In later times the temple was converted into a Christian church. By pulling down a portion of the sacred edifice Mr. Bent had the good fortune to discover a Greek inscription containing a long list of names, probably those of the priests who superintended the worship. One name which meets us frequently in the list is Zas, and it is tempting to regard this as merely a dialectical form of Zeus. If that were so, the priests who bore the name might be supposed to personate the god.(453) But many strange and barbarous-looking names, evidently foreign, occur in the list, and Zas may be one of them. However, it is certain that Zeus was worshipped at the Corycian cave; for about half a mile from it, on the summit of a hill, are the ruins of a larger temple, which an inscription proves to have been dedicated to Corycian Zeus.(454)