"It is daylight," I exclaimed. "It is the sun."
"It can be nothing else," he said.
There, far ahead of us, lay a great archway of light. That was all that we could see from the point at which we discovered it, but now we hastened on almost at a run, so anxious were we for a solution, so hopeful that it was indeed the sunlight and that in some inexplicable and mysterious way the river had found its way to the surface of Barsoom. I knew that this could not be true and Nur An knew it, and yet each knew how great his disappointment would be when the true explanation of the phenomenon was revealed.
When we approached the great patch of light it became more and more evident that the river had broken from its dark cavern out into the light of day, and when we reached the edge of that mighty portal we looked out upon a scene that filled our hearts with warmth and gladness, for there, stretching before us, lay a valley—a small valley it is true—a valley hemmed in, as far as we could see, by mighty cliffs, but yet a valley of life and fertility and beauty bathed in the hot light of the sun.
"It is not quite the surface of Barsoom," said Nur An, "but it is the next best thing."
"And there must be a way out," I said. "There must be. If there is not, we will make one."
"Right you are, Hadron of Hastor," he cried. "We will make a way. Come!"
Before us the banks of the roaring river were lined with lush vegetation; great trees raised their leafy branches far above the waters; the brilliant, scarlet sward was lapped by the little wavelets and everywhere bloomed gorgeous flowers and shrubs of many hues and shapes. Here was a vegetation such as I had never seen before upon the surface of Barsoom. Here were forms similar to those with which I was familiar and others totally unknown to me, yet all were lovely, though some were bizarre.
Emerging, as we had, from the dark and gloomy bowels of the earth, the scene before us presented a view of wondrous beauty, and, while doubtless enhanced by contrast, it was nevertheless such an aspect as is seldom given to the eyes of a Barsoomian of today to view. To me it seemed a little garden spot upon a dying world preserved from an ancient era when Barsoom was young and meteorological conditions were such as to favor the growth of vegetation that has long since become extinct over practically the entire area of the planet. In this deep valley, surrounded by lofty cliffs, the atmosphere doubtless was considerably denser than upon the surface of the planet above. The sun's rays were reflected by the lofty escarpment, which must also hold the heat during the colder periods of night, and, in addition to this, there was ample water for irrigation which nature might easily have achieved through percolation of the waters of the river through and beneath the top soil of the valley.
For several minutes Nur An and I stood spellbound by the bewitching view, and then, espying luscious fruit hanging in great clusters from some of the trees, and bushes loaded with berries, we subordinated the esthetic to the corporeal and set forth to supplement our meal of raw fish with the exquisite offerings which hung so temptingly before us.