“I do not know. Laythe is hard to find—it is well hidden. It is for this reason that it exists at all. Its founders were pursued by the Kalkars, and had they not found an almost inaccessible spot they would have been discovered and slain long before they could have constructed an impregnable city.” She led me then straight into the mighty mountains of the Moon, past the mouths of huge craters that reached through the lunar crust to the surface of the satellite, along the edges of yawning chasms that dropped three, four, yes, sometimes five miles, sheer into frightful gorges, and then out upon vast plateaus, but ever upward toward the higher peaks that seemed to topple above us in the distance. The craters, as a rule, lay in the deep gorges, but some we found upon the plateaus, and even a few opened into the summits of mountain peaks as do those upon the outer surface of planets. Those in the low places were, I believe, the openings through which the original molten lunar core was vomitted forth by the surface volcanoes upon the outer crust. Nah-ee-lah told me that the secret entrance to Laythe lay just below the lip of one of these craters, and it was this she sought. To me the quest seemed hopeless, for as far as the eye could reach lay naught but an indescribable jumble of jagged peaks, terrific gorges and bottomless craters. Yet always the girl seemed to find a way among or about them—instinctively, apparently, she found trails and footholds where there were no trails and where a chamois might have been hard put to it to find secure footing. In these higher altitudes we found a vegetation that differed materially from that which grew in the lowlands. Edible fruits and berries were, however, still sufficiently plentiful to keep us reasonably well supplied with food. When we were tired we usually managed to find a cave in which we could rest in comparative security, and when it was possible to do so Nah-ee-lah always insisted upon barricading the entrance with rocks, since there was always the danger, she told me, of our being attacked by tor-hos. These blood-thirsty creatures while rare, were nevertheless very much to be feared, since not only were they voracious meat eaters and of such a savage disposition that they attacked nearly everything they saw in wanton ferocity, but even a minor wound inflicted by their fangs or talons often proved fatal, because of the fact that their principal diet was the poisonous flesh of the rympth and the flying toad. I tried to get Nah-ee-lah to describe the creature to me, but inasmuch as there was no creature with which we were both familiar that she might compare it with, I learned little more from her than that it stood between eighteen inches and two feet in height, had long, sharp fangs, four legs and was hairless.