"We have little else to buoy us up," I reminded him.

"You are right," he said, and then with a laugh, added, "we still live!"

Presently, feeling rested, we set out along the shore in the direction that the river ran, for we had decided that that would be our course if for no other reason than that it would be easier going down hill than up. Where it would lead, we had not the slightest idea; perhaps to Korus; perhaps to Omean, the buried sea where lay the ships of the First Born.

Over tumbled rock masses we clambered and along level stretches of smooth gravel we pursued our rather aimless course, knowing not whither we were going, having no goal toward which to strive. There was some vegetation, weird and grotesque, but almost colorless for want of sunlight. There were tree-like plants with strange, angular branches that snapped off at the lightest touch, and as the trees did not look like trees, there were blossoms that did not look like flowers. It was a world as unlike the outer world as the figments of imagination are unlike realities.

But whatever musing upon the flora of this strange land I may have been indulging in was brought to a sudden termination as we rounded the shoulder of a jutting promontory and came face to face with as hideous a creature as ever I had laid my eyes upon. It was a great white lizard with gaping jaws large enough to engulf a man at a single swallow. At sight of us it emitted an angry hiss and advanced menacingly toward us.

Being unarmed and absolutely at the mercy of any creature that attacked us, we pursued the only plan that our intelligence could dictate—we retreated—and I am not ashamed to admit that we retreated rapidly.

Running quickly around the end of the promontory, we turned sharply up the bank away from the river. The bottom of the cavern rose sharply and as I clambered upward I glanced behind me occasionally to note the actions of our pursuer. He was now in plain sight, having followed us around the end of the promontory and there he stood looking about as though in search of us. Though we were not far from him, he did not seem to see us, and I soon became convinced that his eyesight was faulty; but not wishing to depend upon this I kept on climbing until presently we came to the top of the promontory, and, looking down upon the other side, I saw a considerable stretch of smooth gravel, stretching out into the dim distance along the river shore. If we could clamber down the opposite side of the barrier and reach this level stretch of gravel, I felt that we might escape the attentions of the huge monster. A final glance at him showed him still standing, peering first in one direction and then in another as though in search of us.

Nur An had followed close behind me and now together we slipped over the edge of the escarpment, and, though the rough rocks scratched us severely, we finally reached the gravel below, whereupon, having eluded our menacer, we set out upon a brisk run down the river. We had covered scarcely more than fifty paces when Nur An stumbled over an obstacle and as I stooped to give him a hand up, I saw that the thing that had tripped him was the rotting harness of a warrior and a moment later I saw the hilt of a sword protruding from the gravel. Seizing it, I wrenched it from the ground. It was a good long sword and I may tell you that the feel of it in my hand did more to restore my self confidence than aught else that might have transpired. Being made of non-corrosive metal, as are all Barsoomian weapons, it remained as sound today as the moment that it had been abandoned by its owner.

"Look," said Nur An, pointing, and there at a little distance we saw another harness and another sword. This time there were two, a long sword and a short sword, and these Nur An took. No longer did we run. I have always felt that there is little upon Barsoom that two well-armed warriors need run from.

As we continued along our way across the level stretch of gravel we sought to solve the mystery of these abandoned weapons, a mystery that was still further heightened by our discovery of many more. In some cases the harness had rotted away entirely, leaving nothing but the metal parts, while in others it was comparatively sound and new. Presently we discerned a white mound ahead of us, but in the dim light of the cavern we could not at first determine of what it consisted. When we did, we were filled with horror, for the white mound was of the bones and skulls of human beings. Then, at last, I thought I had an explanation of the abandoned harness and weapons. This was the lair of the great lizard. Here he took his toll of the unhappy creatures that passed down the river, but how was it that armed men had come here. We had been cast into the cavern unarmed, as I was positive all of the condemned prisoners of Tjanath must have been. From whence came the others? I do not know, doubtless I shall never know. It was a mystery from the first. It will remain a mystery to the last.