The little, simple things one does in moments of stress or excitement often seem entirely beyond reason and incapable of explanation; but I have thought that they may be dictated by a subconscious mind reacting to the urge of self-preservation. Possibly they are not always well directed and may as often fail to be of service as not, but then it may be possible that subconscious minds are no less fallible than the objective mind, which is wrong far more often than it is right. I cannot but seek for some explanation of the urge that caused me to retain that rope, since, all unknown to me, it was to be the slender thread upon which my life was to hang.

Silence had again descended upon the weird scene. Since the final scream of the hideous creature that had retreated into the foliage after this thing had leaped for me, there had been no sound. The creature that crouched facing me seemed slightly bewildered. I am positive now that it had not been pursuing me, but that it itself had been the object of pursuit by the other beast that had retreated.

In the dim half-light of the Venusan night I saw confronting me a creature that might be conjured only in the half-delirium of some horrid nightmare. It was about as large as a full-grown puma, and stood upon four handlike feet that suggested that it might be almost wholly arboreal. The front legs were much longer than the hind, suggesting, in this respect, the hyena; but here the similarity ceased, for the creature's furry pelt was striped longitudinally with alternate bands of red and yellow, and its hideous head bore no resemblance to any earthly animal. No external ears were visible, and in the low forehead was a single large, round eye at the end of a thick antenna about four inches long. The jaws were powerful and armed with long, sharp fangs, while from either side of the neck projected a powerful chela. Never have I seen a creature so fearsomely armed for offense as was this nameless beast of another world. With those powerful crablike pincers it could easily have held an opponent far stronger than a man and dragged it to those terrible jaws.

For a time it eyed me with that single, terrifying eye that moved to and fro at the end of its antenna, and all the time its chelae were waving slowly, opening and closing. In that brief moment of delay I looked about me, and the first thing that I discovered was that I stood directly in front of an opening cut in the bole of the tree; an opening about three feet wide and over six feet high. But the most remarkable thing about it was that it was closed by a door; not a solid door, but one suggesting a massive wooden grill.

As I stood contemplating it and wondering what to do, I thought that I saw something moving behind it. Then a voice spoke to me out of the darkness beyond the door. It sounded like a human voice, though it spoke in a language that I could not understand. The tones were peremptory. I could almost imagine that it said, "Who are you, and what do you want here in the middle of the night?"

"I am a stranger," I said. "I come in peace and friendship."

Of course I knew that whatever it was behind that door, it could not understand me; but I hoped that my tone would assure it of my peaceful designs. There was a moment's silence and then I heard other voices. Evidently the situation was being discussed; then I saw that the creature facing me upon the causeway was creeping toward me, and I turned my attention from the doorway to the beast.

I had no weapons, nothing but a length of futile rope; but I knew that I must do something. I could not stand there supinely and let the creature seize and devour me without striking a blow in my own defense. I uncoiled a portion of the rope and, more in despair than with any hope that I could accomplish anything of a defensive nature, flicked the end of it in the face of the advancing beast. You have seen a boy snap a wet towel at a companion; perhaps you have been flicked in that way, and if you have, you know that it hurts.

Of course I did not expect to overcome my adversary by any such means as this; to be truthful, I did not know what I did expect to accomplish Perhaps I just felt that I must do something, and this was the only thing that occurred to me. The result merely demonstrated the efficiency of that single eye and the quickness of the chelae. I snapped that rope as a ringmaster snaps a whip; but though the rope end travelled with great speed and the act must have been unexpected, the creature caught the rope in one of its chelae before it reached its face. Then it hung on and sought to drag me toward those frightful jaws.

I learned many a trick of roping from a cowboy friend of my motion picture days, and one of these I now put into use in an endeavor to entangle the crablike chelae. Suddenly giving the rope sufficient slack, I threw a half hitch around the chela that gripped it, immediately following it with a second, whereupon the creature commenced to pull desperately away. I think it was motivated solely by an instinctive urge to pull toward its jaws anything that was held in its chelae; but for how long it would continue to pull away before it decided to change its tactics and charge me, I could not even guess; and so I acted upon a sudden inspiration and hurriedly made fast the end of the rope that I held to one of the stout posts that supported the handrail of the causeway; then, of a sudden, the thing charged me, roaring furiously.

I turned and ran, hoping that I could get out of the reach of those terrible chelae before the creature was stopped by the rope; and this I but barely managed to do. I breathed a sigh of relief as I saw the great body flipped completely over on its back as the rope tautened, but the hideous scream of rage that followed left me cold.