Beyond, circling this plaza upon two sides, were several rows of houses, all facing the same direction.

It reminded me of pictures I had seen of Hebrew camps in my father's great Bible, only the houses were built of sun-dried clay, such as peons use in the far Southwest on the Brazos, square in shape, of but a single story, having dome-shaped roofs, heavily thatched with cane.

They were windowless, with one narrow opening for a door, protected by a heavy matting of grass.

Behind these, perhaps a hundred yards or more, and within a short distance of the steep cliffs bounding the upper extremity of the valley, there arose from the surface of the plain two immense rounded mounds of earth, each fully a hundred paces wide at its base, sloping sharply upward.

Considerable vacant space lay between the two, while on the apex of each stood buildings of sun-baked clay, resembling in form those below, yet much larger, and, because of their elevation, appearing spacious and imposing.