Mountains of yellow rock hung balanced, ready to tumble down at the first angry breath of the gods.

We rode among carved stones, pillars, obelisks and sculptured ruined walls of a fallen Babylon.

Slides reaching all the way across and far up the canyon wall obstructed our passage.

On every stone silent green lizards sunned themselves, gliding swiftly as we came near to their marble homes.
We came into a region of wind-worn caves, of all sizes and shapes, high and low on the cliffs; but strange to say, only on the north side of the canyon they appeared with dark mouths open and uninviting.

One, vast and deep, though far off, menaced us as might the cave of a tawny-maned king of beasts; yet it impelled, fascinated and drew us on.
"It's a long, hard climb," said Wallace to the Colonel, as we dismounted.
"Boys, I'm with you," came the reply.