Simultaneously my companion and I each struck down an antagonist, and then the remaining warrior turned to flee. "Do not let him escape!" cried my comrade-in-arms, and leaped in pursuit, at the same time calling loudly for help, something he had not done when close to death before the points of six swords. But whom did he expect to answer his appeal in this dead and deserted city? Why did he call for help when the last of his antagonists was in full flight? I was puzzled; but having enlisted myself in this strange adventure, I felt that I should see it through; and so I set off in pursuit of the fleeing green man.

He crossed the courtyard where we had been engaged and made for a great archway that opened out into a broad avenue. I was close behind him, having outstripped both him and the strange warrior. When I came into the avenue I saw the green man leap to the back of one of six thoats waiting there, and at the same time I saw at least a hundred warriors pouring from a nearby building. They were yellow-haired white men, garbed like my erstwhile fighting companion, who now joined in the pursuit of the green man. They were armed with bows and arrows; and they sent a volley of missiles after the escaping quarry, whom they could never hope to overtake, and who was soon out of range of their weapons.

The spirit of adventure is so strong within me that I often yield to its demands in spite of the dictates of my better judgment. This matter was no affair of mine. I had already done all, and even more than could have been expected of me; yet I leaped to the back of one of the remaining thoats and took off in pursuit of the green warrior.

Chapter 3

There are two species of thoat on Mars: the small, comparatively docile breed used by the red Martians as saddle animals and, to a lesser extent, as beasts of burden on the farms that border the great irrigation canals; and then there are the huge, vicious, unruly beasts that the green warriors use exclusively as steeds of war.

These creatures tower fully ten feet at the shoulder. They have four legs on either side and a broad, flat tail, larger at the tip than at the root, that they hold straight out behind while running. Their gaping mouths split their heads from their snouts to their long, massive necks. Their bodies, the upper portion of which is a dark slate color and exceedingly smooth and glossy, are entirely devoid of hair. Their bellies are white, and their legs shade gradually from the slate color of their bodies to a vivid yellow at the feet, which are heavily padded and nailless.