I cannot recall that ever in my life I felt more alone than I did that night as I was descending the ancient beacon-tower of that deserted city for not even hope was with me. So precarious were my holds upon the rough stone that my fingers were soon numb and exhausted. How they clung at all to those shallow cuts, I do not know. The only redeeming feature of the descent was the darkness, and a hundred times I blessed my first ancestors that I could not see the dizzy depths below me; but on the other hand it was so dark that I could not tell how far I had descended; nor did I dare to look up where the summit of the tower must have been silhouetted against the starlit sky for fear that in doing so I should lose my balance and be precipitated to the courtyard or the roof below. The air of Barsoom is thin; it does not greatly diffuse the starlight, and so, while the heavens above were shot with brilliant points of light, the ground beneath was obliterated in darkness.

Yet I must have been nearer the roof than I thought when that happened which I had been assiduously endeavoring to prevent the scabbard of my long sword pattered noisily against the face of the tower. In the darkness and the silence it seemed a veritable din, but, however exaggerated it might appear to me, I knew that it was sufficient to reach the ears of the great ape in the tower. Whether a suggestion of its import would occur to him, I could not guess-I could only hope that he would be too dull to connect it with me or my escape.

But I was not to be left long in doubt, for almost immediately afterward a sound came from the interior of the tower that sounded to my over-wrought nerves like a heavy body rapidly descending a ladder. I realize now that imagination might easily have construed utter silence into such a sound, since I had been listening so intensely for that very thing that I might easily have worked myself into such a state of nervous apprehension that almost any sort of an hallucination was possible.

With redoubled speed and with a measure of recklessness that was almost suicidal, I hastened my descent and an instant later I felt the solid roof beneath my feet.

I breathed a sigh of relief, but it was destined to be but a short sigh and but brief relief, for almost instantly I was made aware that the sound from the interior of the tower had been no hallucination as the huge bulk of a great white ape loomed suddenly from a doorway not a dozen paces from me.

As he charged me he gave forth no sound. Evidently he had not held his solitary vigil this long with any intention of sharing his feast with another. He would dispatch me in silence, and, with similar intent I drew my long sword, rather than my pistol, to meet his savage charge.

What a puny, futile thing I must have appeared confronting that towering mountain of bestial ferocity.

Thanks be to a thousand fighting ancestors that I wielded a long sword with swiftness and with strength; otherwise I must have been gathered into that savage embrace in the brute's first charge. Four powerful hands were reached out to seize me, but I swung my long sword in a terrific cut that severed one of them cleanly at the wrist and at the same instant I leaped quickly to one side, and as the beast rushed past me, carried onward by its momentum, I ran my blade deep into its body. With a savage scream of rage and pain it sought to turn upon me, but its foot slipped upon its own dismembered hand and it stumbled awkwardly on trying to regain its equilibrium, but that it never accomplished, and still stumbling grotesquely it lunged over the edge of the roof to the courtyard below.

Fearing that the beast's scream might attract others of its kind to the roof, I ran swiftly to the north edge of the building where I had noted from the tower earlier in the afternoon a series of lower buildings adjoining, over the roofs of which I might possibly accomplish my descent to the street level.

Cold Cluros was rising above the distant horizon, shedding his pale light upon the city so that I could plainly see the roofs below me as I came to the north edge of the building. It was a long drop, but there was no safe alternative, since it was quite probable that should I attempt to descend through the building, I would meet other members of the ape's herd who had been attracted by the scream of their fellow.

Slipping over the edge of the roof I hung an instant by my hands and then dropped. The distance was about two ads, but I alighted safely and without injury. Upon your own planet, with its larger bulk and greater gravity, I presume that a fall of that distance might be serious, but not so, necessarily, upon Barsoom.

From this roof I had a short drop to the next, and from that I leaped to a low wall and thence to the ground below.

Had it not been for the fleeting glimpse of the girl captive that I had caught just at sunset, I should have set out directly for the hills west of the town, banth or no banth, but now I felt strongly upon me a certain moral obligation to make the best efforts that I could for succoring the poor unfortunate that had fallen into the clutches of these cruelest of creatures.

Keeping well within the shadows of the buildings I moved stealthily toward the central plaza of the city, from which direction I had heard the squealing of the thoats.

The plaza was a full haad from the water-front and I was compelled to cross several intersecting avenues as I cautiously made my way toward it, guided by an occasional squeal from the thoats quartered in some deserted palace courtyard.

I reached the plaza in safety, confident that I had not been observed.

Upon the opposite side I saw light within one of the great buildings that faced it, but I dared not cross the open space in the moonlight and so still clinging to the shadows I moved to the far end of the quadrangle where Cluros cast his densest shadows, and thus at last I won to the building in which the green men were quartered. Directly before me was a low window that must have opened into a room adjoining the one in which the warriors were congregated. Listening intently I heard nothing within the chamber and slipping a leg over the sill I entered the dark interior with the utmost stealth.

Tiptoeing across the room to find a door through which I might look into the adjoining chamber, I was suddenly arrested as my foot touched a soft body and I froze into rigidity, my hand upon my long sword, as the body moved.

Four. TAVIA

There are occasions in the life of every man when he becomes impressed by the evidence of the existence of an extraneous power which guides his acts, which is sometimes described as the hand of providence, or is again explained on the hypothesis of a sixth sense which transports to the part of our brain that controls our actions, perceptions of which we are not objectively aware; but, account for it as one may, the fact remains that as I stood there that night in the dark chamber of the ancient palace of the deserted city I hesitated to thrust my sword into the soft body moving at my feet. This might after all have been the most reasonable and logical course for me to pursue. Instead I pressed my sword point firmly against yielding flesh and whispered a single word: "Silence!"

A thousand times since then have I given thanks to my first ancestors that I did not follow my natural impulse, for, in response to my admonition a voice whispered: "Do not thrust, red man; I am of your own race and a prisoner," and the voice was that of a girl.

Instantly I withdrew my blade and kneeled beside her. "If you have come to help me, cut my bonds," she said, "and be quick for they will soon return for me."

Feeling rapidly over her body I found that her wrists and ankles were secured with leather thongs and drawing my dagger I quickly severed these. "Are you alone?" I asked as I helped her to her feet.