Now the foremost of the creatures seemed to undergo a series of swift changes in shape, his plastic body twisting and changing from one strange form to another with inconceivable rapidity. After a moment of this protean changing his body settled back into its former shapeless mass, but as it did so three of the creatures behind him came forward toward us, as though in answer to a silent command. I was later to learn what I half guessed at the moment, that it was by these swift changes in bodily shape that the creatures communicated with each other, each such change, however slight, carrying to them as much meaning as a change of accent in spoken speech does to us.
The three that had come forward each held in a pseudopod arm one of the deadly box-weapons, and now they placed themselves around us, one in front and the other two behind us. Then they motioned eloquently toward the left, and after a moment's hesitation we set off in that direction, around the clearing's edge. Past the looming machines we went, my own eyes intent on the huge cylinder in the clearing beside us, from which arose the great ray of impenetrable force into which our ship had crashed. Through the twilight that reigned about us I saw that only a handful of these nebula-creatures were to be seen on all the pit's floor, and wondered momentarily at the smallness of their numbers. Then my speculations were driven from my mind as our guards suddenly halted us, several hundred feet around the clearing's edge from our cruiser.
Before us there yawned a round, dark opening in the smooth floor, a small, shaft-like pit some ten feet in diameter, its sides disappearing down into a dense darkness. As we stared, the guard before us glided to the shaft's edge and suddenly swung himself over that edge, disappearing from view. And as we stepped closer we saw that he was lowering himself down the shaft's smooth metal wall by means of metal pegs inset every few feet in that wall, dropping from peg to peg in smooth, effortless descent. Now our two remaining guards raised their weapons significantly, motioning toward the shaft. Choice of action there was none, so after a moment's involuntary hesitation I stepped to the edge and grasped the highest peg, swinging myself over the edge and down until I had found a foot-hold on a lower peg, then shifting my grasp to swing down again in the same manner. After me came Jor Dahat, and after him the plant-man Sar Than, who swung easily down by grasping the pegs with all of his four limbs. Then the two guards were swinging down after him, and we were dropping steadily down the line of pegs into the rayless darkness.
I think now that of all the journeys in the universe that journey of ours down the shaft was the strangest. Plant-man and human and Arcturian, three different beings from three far-distant stars, we swung down that dizzy ladder into the dark depths of this strange world at the fiery nebula's heart, guarded above and below by formless beings of weirdness unutterable. Down we clambered, feeling blindly in the darkness for our hand and foot-holds, down until at last, far below, there appeared a faint little spot of white light in the darkness.
The spot of light grew stronger, larger, as we climbed down toward it, until finally we saw that we were nearing the shaft's bottom, at which it gleamed. A few minutes more and we had clambered down the last peg and stood at the bottom of the shaft, a dark, circular well of metal pierced in one side by a doorway through which came the dim white light. Then we were bunched together once more between our guards, and were marched through the door into a long corridor dimly lit by a few globes of lambent white light suspended from its ceiling. As we marched along this long, metal-walled corridor I wondered how far beneath the great pit's floor we were, estimating by the length of our downward climb that it must be thousands of feet at least. Then my thoughts shifted as there came from ahead a deep humming, beating sound, and a gleam of stronger light.
Before us now lay the end of the corridor, a square of brilliant white light toward which we were marching. We reached it, were passing through it, and then we halted in our tracks in sheer, stunned astonishment. For below us there stretched a vast open space, or cavern, of gigantic dimensions, its floor and sides and ceiling of smooth black metal, brilliantly illuminated by scores of the lambent globes of light. For thousands of feet before and above us stretched the great space, and in it was a scene of clamorous activity that was stunning after the darkness and silence through which we had come.
Ranged on the mighty cavern's floor were long rows of machines the purposes of which were beyond our speculation, incredibly intricate masses of great arms and cogs and eccentric wheels all working smoothly with a steady beat-beat-beat of power, and tended by countless numbers of the formless nebula-creatures among them. Some seemed to be ventilating-machines of a sort, with great tubes leading upward through the cavern's ceiling; from others streams of white-hot metal gushed out into molds, cooling instantly into wheels and squares and bars; still others appeared to be connected with the great globes of light above; and some there were, like great domed turtles of metal, that moved here and there about the cavern's floor, reaching forth great pincer-arms to grip stacks of bars and plates and carry them from place to place.
Only a moment we stared across that scene of amazing activity before our guards were again motioning us onward, across the cavern's floor. Between the aisles of looming mechanisms we marched, whose formless attendants seemed not to heed us as we passed them. Before and around us glided the great turtle-machines with their burdens, the humming of their operation adding to the medley of sounds about us, only the shapeless nebula-creatures being completely silent. And as we marched on I saw in the great cavern's distant walls doors and corridors leading away to other vast brilliant-lit caverns that I could but vaguely glimpse, extending away in every direction a great, half seen vista of mighty white-lit spaces reaching away all about us, stupendous; incredible. And as we went on we saw other narrow shafts in the floor like that down which we had come, saw swarms of the nebula-creatures rising from and descending into those shafts by the pegs set in their sides, moving ceaselessly up and down from whatever other vast spaces might lie beneath us in this titanic, honeycombed world.
At last we were across the great cavern, had entered the comparative silence of another corridor, and progressed down this until our guards turned us through a doorway in its right wall. We found ourselves in a great hall, or room, smaller by far than any of the vast caverns that honeycombed this world, but unlike them quite silent, and with no humming machines or busy attendants. The great, long hall, perhaps five hundred feet in length, was quite empty except for a low dais at its farther end, toward which our guards conducted us, gliding before and behind us.
As we neared it we saw that on each side of the dais was ranged a double file of guards, each armed with the deadly weapon we had seen demonstrated, while upon the dais itself rested ten of the formless nebula-creatures. Of these ten, nine were like all of the others that we had seen, ranged in a single line across the dais. The tenth, however, who rested in a central position in front of the nine, was like the others in form or formlessness alone, being at least five times larger in size than any of the others we had seen, an enormous mass of white flesh resting there on the dais and contemplating us with his strange eye as we were marched down the hall toward him. I divined instantly, by his strange size and prominent position, that he held some place of power above the others of his race. For weird and alien as his appearance was, there yet reached out from him toward us a strong impression of some strange majesty and power embodied in this monstrous mass of flesh, some awe-inspiring dignity that was truly regal, and that transcended all differences of mind or shape.