In time as well as space my fancy roams far from here. It led me once to the edge of certain cliffs that were low and red and rose up out of a desert: a little way off in the desert there was a city. It was evening, and I sat and watched the city.  
Presently I saw men by threes and fours come softly stealing out of that city's gate to the number of about twenty. I heard the hum of men's voices speaking at evening.
 
"It is well they are gone," they said. "It is well they are gone. We can do business now. It is well they are gone." And the men that had left the city sped away over the sand and so passed into the twilight.
 
"Who are these men?" I said to my............