My relief was to be short-lived, for as the rear of the caravan was about to pass us one of the flankers spied us.

Instantly the fellow wheeled his thoat and, shouting to his companions, came galloping toward us. We sprang to our feet with drawn swords, expecting to die; but ready to sell our lives dearly.

A moment after we had gained our feet, Llana exclaimed, "Look! Here is a trail down into the valley."

I looked around. Sure enough, now that we were standing erect, I could see the head of a narrow, precipitous trail leading down over the edge of the cliff. If we could but reach it, we would be safe, for the great thoats and zitidars of the green men could not possibly negotiate it. It was very possible that the green men were not even aware of the presence of the rift before they had come suddenly upon it, and this is entirely possible; because they build their incubators in uninhabited and unexplored wildernesses sometimes as much as a thousand miles from their own stamping grounds.

As the three of us, Llana, Pan Dan Chee, and I, ran for the trail, I glanced over my shoulder and saw that the leading warrior was almost on top of us and that we could not all reach the trail. So I called to Pan Dan Chee to hurry down it with Llana. They both stopped and turned toward me.

"It is a command," I told them. Reluctantly they turned and continued on toward the end of the trail, while I wheeled and faced the warrior.

He had stopped his thoat and dismounted, evidently intent upon capturing me rather than killing me; but I had no mind to be captured for torture and eventual death. It was far better to die now.

He drew his long-sword as he came toward me and I did likewise. Had there not been six of his fellows galloping up on their huge thoats I should not have worried greatly, for with a sword I am a match for any green Martian that was ever hatched. Even their great size gives them no advantage. Perhaps it handicaps them, for their movements are slow and ponderous by comparison with my Earthly agility; and though they are twice my size, I am fully as strong as they. The muscles of Earthly man have not contended with the force of gravity since the dawn of humanity for nothing. It has developed and hardened muscles; because every move we make is contested by gravity.

My antagonist was so terribly cock-sure of himself, when facing such a seemingly puny creature as I, that he left himself wide open, as he charged down upon me like a wild bull.

I saw by the way he held his sword that he intended to strike me on the head with the flat of it, rendering me unconscious, so that he could more easily capture me; but when the sword fell I was not there; I had stepped to the right out of his way, and simultaneously I thrust for his heart. I would have punctured it, too, had not one of his four arms happened to swing against the point of my blade before it reached his body. As it was, I gave him a severe wound; and, roaring with rage, he turned and came at me again.

This time he was more careful; but it made no difference; he was doomed, for he was testing his skill against the best swordsman of two worlds.

The other six warriors were almost upon me now. This was no time for the sport of fencing. I feinted once, and ran him through the heart. Then, seeing that Llana was safe, I turned and ran along the edge of the rift; and the six green warriors did just what I had expected them to do. They had probably detached themselves from the rear guard for the sport of catching a red man for torture or for their savage games. Bunched close together they came after me, the nailless, padded feet of their ponderous mounts making no sound upon the ocher, moss-like vegetation of the dead sea bottom. Their spears couched, they came for me, each trying to make the kill or the capture. I felt much as a fox must feel at a fox hunt.

Suddenly I stopped, turned, and ran toward them. They must have thought that I had gone mad with fear, for they certainly couldn't have known what I had in mind and that I had run from them merely to lure them away from the head of the trail leading down into the valley. They were almost upon me when I leaped high into the air and completely over them. My great strength and agility and the lesser gravity of Mars had once again come to my aid in an emergency.

When I alighted, I dashed for the head of the trail. And when the warriors could stop their mounts they turned and raced after me, but they were too late. I can out-run any thoat that was ever foaled. The only trouble with me is that I am too proud to run; but, like the fellow that was too proud to fight, I sometimes have to, as in this case where the safety of others was at stake.

I reached the head of the trail in plenty of time and hurried down after Llana and Pan Dan Chee, whom I found waiting for me when I caught up with them.

As we descended, I looked up and saw the green warriors at the edge of the rift looking at us; and, guessing what would happen, I dragged Llana into the shelter of an overhanging ledge. Pan Dan Chee followed just as radium bullets commenced to explode close to us.

The rifles with which the green men of Mars are armed are of a white metal, stocked with wood; a very light and intensely hard growth much prized on Mars and entirely unknown to us denizens of Earth. The metal of the barrel is an alloy composed principally of aluminum and steel, which they have learned to temper to a hardness far exceeding that of the steel with which we are familiar.

The weight of these rifles is comparatively little; and with the small caliber, explosive radium projectiles which they use and the great length of the barrel, they are deadly in the extreme and at ranges which would be unthinkable on Earth.

The projectiles which they use explode when they strike an object, for they have an opaque outer coating which is broken by the impact, exposing a glass cylinder, almost solid, in the forward end of which is a minute particle of radium powder.

(Editor's Note) I have used the word radium in describing this powder because in the light of recent discoveries on earth I believe it to be a mixture of which radium is the base. In Captain Carter's manuscripts it is mentioned always by the name used in the written language of Helium and is spelled in hieroglyphics which it would be difficult and useless to reproduce.

The moment the sunlight, even though diffused, strikes this powder it explodes with a violence which nothing can withstand. In night battles one notices the absence of these explosions, while the following morning will be filled at sunrise with the sharp detonations of exploding missiles fired the preceding night. As a rule, however, non-exploding projectiles are used after dark.

I felt it safer to remain where we were rather than to expose ourselves by attempting to descend, as I doubted very much that the huge green warriors would follow us down that steep declivity on foot, for the trail was too narrow for their great bodies and they hate going anywhere on foot.

After a few minutes I investigated and found that they apparently had departed.

Then we started on down into the valley, not wishing to risk another encounter with that great horde of cruel and ruthless creatures.