A thousand pities, for it was a wonderful work of art." Then I remembered and reminded Bickley of the crash which we had heard while Yva and Bastin were absent on some secret business in the chamber.
Walking the length of the great church, if so it could be called, we came to an apse at the head of it where, had it been Christian, the altar would have stood.

In this apse was a little open door through which we passed.

Beyond it lay a space of rough rock that looked as though it had been partially prepared for the erection of buildings and then abandoned.

All this space was lighted, however, like the rest of the City of Nyo, and in the same mysterious way.

Led by Yva, we threaded our path between the rough stones, following a steep downward slope.
Thus we walked for perhaps half a mile, till at length we came to the mouth of a huge pit that must, I imagine, have lain quite a thousand feet below the level of the temple.
I looked over the edge of this pit and shrank back terrified.