that I explore aloft as far as I could go in safety while he guarded the entrance against a possible attack.
As I hastened above to explore the strange shaft[4] I found that the ladder of horizontal bars mounted always as far above me as my eyes could reach, and as I ascended, the light from above grew brighter and brighter.
For fully five hundred feet I continued to climb, until at length I reached the opening in the stem which admitted the light. It was of about the same diameter as the entrance at the foot of the tree, and opened directly upon a large flat limb, the well worn surface of which testified to its long continued use as an avenue for some creature to and from this remarkable shaft.
I did not venture out upon the limb for fear that I might be discovered and our retreat in this direction cut off; but instead hurried to retrace my steps to Tars Tarkas.
I soon reached him and presently we were both ascending the long ladder toward the opening above.
Tars Tarkas went in advance and as I reached the first of the horizontal bars I drew the ladder up after me and, handing it to him, he carried it a hundred feet further aloft, where he wedged it safely between one of the bars and the side of the shaft. In like manner I dislodged the lower bars as I passed them, so that we soon had the interior of the tree denuded of all possible means of ascent for a distance of a hundred feet from the base; thus precluding possible pursuit and attack from the rear.
As we were to learn later, this precaution saved us from dire predicament, and was eventually the means of our salvation.
When we reached the opening at the top Tars Tarkas drew to one side that I might pass out and investigate, as, owing to my lesser weight and greater agility, I was better fitted for the perilous threading of this dizzy, hanging pathway.
The limb upon which I found myself ascended at a slight angle toward the cliff, and as I followed it I found that it terminated a few feet above a narrow ledge which protruded from the cliff’s face at the entrance to a narrow cave.
As I approached the slightly more slender extremity of the branch it bent beneath my weight until, as I balanced perilously upon its outer tip, it swayed gently on a level with the ledge at a distance of a couple of feet.
Five hundred feet below me lay the vivid scarlet carpet of the valley; nearly five thousand feet above towered the mighty, gleaming face of the gorgeous cliffs.
The cave that I faced was not one of those that I had seen from the ground, and which lay much higher, possibly a thousand feet. But so far as I might know it was as good for our purpose as another, and so I returned to the tree for Tars Tarkas.
Together we wormed our way along the waving pathway, but when we reached the end of the branch we found that our combined weight so depressed the limb that the cave’s mouth was now too far above us to be reached.
We finally agreed that Tars Tarkas should return along the branch, leaving his longest leather harness strap with me, and that when the limb had risen to a height that would permit me to enter the cave I was to do so, and on Tars Tarkas’ return I could then lower the strap and haul him up to the safety of the ledge.
This we did without mishap and soon found ourselves together upon the verge of a dizzy little balcony, with a magnificent view of the valley spreading out below us.
As far as the eye could reach gorgeous forest and crimson sward skirted a silent sea, and about all towered the brilliant monster guardian cliffs. Once we thought we discerned a gilded minaret gleaming in the sun amidst the waving tops of far-distant trees, but we soon abandoned the idea in the belief that it was but an hallucination born of our great desire to discover the haunts of civilized men in this beautiful, yet forbidding, spot.
Below us upon the river’s bank the great white apes were devouring the last remnants of Tars Tarkas’ former companions, while great herds of plant men grazed in ever-widening circles about the sward which they kept as close clipped as the smoothest of lawns.
Knowing that attack from the tree was now improbable, we determined to explore the cave, which we had every reason to believe was but a continuation of the path we had already traversed, leading the gods alone knew where, but quite evidently away from this valley of grim ferocity.
As we advanced we found a well-proportioned tunnel cut from the solid cliff. Its walls rose some twenty feet above the floor, which was about five feet in width. The roof was arched. We had no means of making a light, and so groped our way slowly into the ever-increasing darkness, Tars Tarkas keeping in touch with one wall while I felt along the other, while, to prevent our wandering into diverging branches and becoming separated or lost in some intricate and labyrinthine maze, we clasped hands.
How far we traversed the tunnel in this manner I do not know, but presently we came to an obstruction which blocked our further progress. It seemed more like a partition than a sudden ending of the cave, for it was constructed not of the material of the cliff, but of something which felt like very hard wood.
Silently I groped over its surface with my hands, and presently was rewarded by the feel of the button which as commonly denotes a door on Mars as does a door knob on Earth.
Gently pressing it, I had the satisfaction of feeling the door slowly give before me, and in another instant we were looking into a dimly lighted apartment, which, so far as we could see, was unoccupied.
Without more ado I swung the door wide open and, followed by the huge Thark, stepped into the chamber. As we stood for a moment in silence gazing about the room a slight noise behind caused me to turn quickly, when, to my astonishment, I saw the door close with a sharp click as though by an unseen hand.
Instantly I sprang toward it to wrench it open again, for something in the uncanny movement of the thing and the tense and almost palpable silence of the chamber seemed to portend[5] a lurking evil lying hidden in this rock-bound chamber within the bowels of the Golden Cliffs.
My fingers clawed futilely at the unyielding portal, while my eyes sought in vain for a duplicate of the button which had given us ingress.
And then, from unseen lips, a cruel and mocking peal of laughter rang through the desolate place.
Chapter III
The Chamber of Mystery
For moments after that awful laugh had ceased reverberating through the rocky room, Tars Tarkas and I stood in tense and expectant silence. But no further sound broke the stillness, nor within the range of our vision did aught move.
At length Tars Tarkas laughed softly, after the manner of his strange kind when in the presence of the horrible or terrifying. It is not an hysterical laugh, but rather the genuine expression of the pleasure they derive from the things that move Earth men to loathing or to tears.
Often and again have I seen them roll upon the ground in mad fits of uncontrollable mirth when witnessing the death agonies of women and little children beneath the torture of that hellish green Martian fete—the Great Games.
Tars Tarkas told John Carter that they were near the River Iss in the Valley Dor, the place for pilgrimage for billions of Martians at the end of their lives. The one who returned from the Valley was considered to be a blasphemer and was to be killed. He also told that the princess Dejah Thoris was still alive.
As we talked I had been searching the interior of the chamber with my eyes. It was, perhaps, two hundred feet in length and half as broad, with what appeared to be a doorway in the centre of the wall directly opposite that through which we had entered.
The apartment was hewn from the material of the cliff, showing mostly dull gold in the dim light which a single minute radium illuminator in the centre of the roof diffused throughout its great dimensions. Here and there polished surfaces of ruby, emerald, and diamond patched the golden walls and ceiling. The floor was of another material, very hard, and worn by much use to the smoothness of glass. Aside from the two doors I could discern no sign of other aperture, and as one we knew to be locked against us I approached the other.
As I extended my hand to search for the controlling button, that cruel