"You are being very generous," I said.

"I owe you my life, sir."

Life is strange. How could I have guessed a few hours before that my life would be in the hands of one of Hin Abtol's officers, and safe? If ever a man was quickly rewarded for a good deed, it was I now for the rescuing of those poor devils from the burning ship.

Gor-don led the way with confidence over that trackless waste to a narrow gorge that split the hills. One unfamiliar with its location could have passed along the foot of the hills within a hundred yards of its mouth without ever seeing it, for its ice—and snow-covered walls blended with the surrounding snow to hide it most effectively.

It was rough going in that gorge. Snow covered broken ice and rocks, so that we were constantly stumbling and often falling. Transverse fissures crossing the gorge formed a labyrinth of corridors in which a man might be quickly lost.

Gor-don told me this was the only pass through the hills, and that if an enemy ever got into it he would freeze to death before he found his way out again.

We had plodded on for about half an hour, when, at a turn, our way was blocked by one of the most terrible creatures that inhabit Mars. It was an apt, a huge, white furred creature with six limbs, four of which short and heavy, carry it swiftly over the snow and ice; while the other two, growing forward from its shoulders on either side of its long, powerful neck, terminate in white, hairless hands, with which it seizes and holds its prey.

Its head and mouth are more nearly similar in appearance to those of a hippopotamus than to any other earthly animal, except that from the sides of the upper jawbone two mighty horns curve slightly downward toward the front.

Its two huge eyes inspire one's greatest curiosity. They extend in two vast oval patches from the center of the top of the cranium down either side of the head to below the roots of the horns, so that these weapons really protrude from the lower part of the eyes, which are composed of several thousand ocelli each.

This eye structure has always seemed remarkable to me in a beast whose haunts were on a glaring field of ice and snow, and though I found upon minute examination of the eyes of several that Thuvan Dihn and I killed, that time that we passed through the carrion caves, that each ocellus is furnished with its own lid, and that the animal can, at will, close as many of the facets of its huge eyes as it wishes, yet I am sure that nature has thus equipped him because much of his life is spent in dark, subterranean recesses.