I have no idea how far we had gone, when we came to the last vault; but it seemed that we had been wandering for ages in that forgotten underworld. The air was growing fouler and more irrespirable, with a thick, sodden quality, as if from a sediment of material rottenness; and we had about decided to turn back. Then, without warning, at the end of a long, urn-lined catacomb, we found ourselves confronted by a blank wall.
Here, we came upon one of the strangest and most mystifying of our discoveries—a mummified and incredibly desiccated figure, standing erect against the wall. It was more than seven feet in height, of a brown, bituminous color, and was wholly nude except for a sort of black cowl that covered the upper head and drooped down at the sides in wrinkled folds. From the three arms, and general contour, it was plainly one of the ancient Yorhis—perhaps the sole member of this race whose body had remained intact.
We all felt an inexpressible thrill at the sheer age of this shrivelled thing, which, in the dry air of the vault, had endured through all the historic and geologic vicissitudes of the planet, to provide a visible link with lost cycles.
Then, as we peered closer with our torches, we saw why the mummy had maintained an upright position. At ankles, knees, waist, shoulders and neck it was shackled to the wall by heavy metal bands, so deeply eaten and embrowned with a sort of rust that we had failed to distinguish them at first sight in the shadow. The strange cowl on the head, when closelier studied, continued to baffle us. It was covered with a fine, mould-like pile, unclean and dusty as ancient cobwebs. Something about it, I know not what, was abhorrent and revolting.
“By Jove! this is a real find!” ejaculated Octave, as he thrust his torch into the mummified face, where shadows moved like living things in the pit-deep hollows of the eyes and the huge triple nostrils and wide ears that flared upward beneath the cowl.
Still lifting the torch, he put out his free hand and touched the body very lightly. Tentative as the touch had been, the lower part of the barrel-like torso, the legs, the hands and forearms all seemed to dissolve into powder, leaving the head and upper body and arms still hanging in their metal fetters. The progress of decay had been queerly unequal, for the remnant portions gave no sign of disintegration.
Octave cried out in dismay, and then began to cough and sneeze, as the cloud of brown powder, floating with airy lightness, enveloped him. We others all stepped back to avoid the powder. Then, above the spreading cloud, I saw an unbelievable thing. The black cowl on the mummy’s head began to curl and twitch upward at the corners, it writhed with a verminous motion, it fell from the withered cranium, seeming to fold and unfold convulsively in mid-air as it fell. Then it dropped on the bare head of Octave who, in his disconcertment at the crumbling of the mummy, had remained standing close to the wall. At that instant, in a start of profound terror, I remembered the thing that had inched itself from the shadows of Yoh-Vombis in the light of the twin moons, and had drawn back like a figment of slumber at my first waking movement.
Cleaving closely as a tightened cloth, the thing enfolded Octave’s hair and brow and eyes, and he shrieked wildly, with incoherent pleas for help, and tore with frantic fingers at the cowl, but failed to loosen it. Then his cries began to mount in a mad crescendo of agony, as if beneath some instrument of infernal torture; and he danced and capered blindly about the vault, eluding us with strange celerity as we all sprang forward in an effort to reach him and release him from his weird incumbrance. The whole happening was mysterious as a nightmare; but the thing that had fallen on his head was plainly some unclassified form of Martian life, which, contrary to all the known laws of science, had survived in those primordial catacombs. We must rescue him from its clutches if we could.
We tried to close in on the frenzied figure of our chief—which, in the far from roomy space between the last urns and the wall, should have been an easy matter. But, darting away, in a manner doubly incomprehensible because of his blindfolded condition, he circled about us and ran past, to disappear among the urns toward the outer labyrinth of intersecting catacombs.
“My God! What has happened to him?” cried Harper. “The man acts as if he were possessed.”
There was obviously no time for a discussion of the enigma, and we all followed Octave as speedily as our astonishment would permit. We had lost sight of him in the darkness, and when we came to the first division of the vaults, we were doubtful as to which passage he had taken, till we heard a shrill scream, several times repeated, in a catacomb on the extreme left. There was a weird, unearthly quality in those screams, which may have been due to the long-stagnant air or the peculiar acoustics of the ramifying caverns. But somehow I could not imagine them as issuing from human lips—at least not from those of a living man. They seemed to contain a soulless, mechanical agony, as if they had been wrung from a devil-driven corpse.
Thrusting our torches before us into the lurching, fleeing shadows, we raced along between rows of mighty urns. The screaming had died away in sepulchral silence; but far off we heard the light and muffled thud of running feet. We followed in headlong pursuit; but, gasping painfully in the vitiated, miasmal air, we were soon compelled to slacken our pace without coming in sight of Octave. Very faintly, and further away than ever, like the tomb-swallowed steps of a phantom, we heard his vanishing footfalls. Then they ceased; and we heard nothing, except our own convulsive breathing, and the blood that throbbed in our temple-veins like steadily beaten drums of alarm.
We went on, dividing our party into three contingents when we came to a triple branching of the caverns. Harper and Halgren and myself took the middle passage; and after we had gone on for an endless interval without finding any trace of Octave, and had threaded our way through recesses piled to the roof with colossal urns that must have held the ashes of a hundred generations, we came out in the huge chamber with the geometric floor-designs. Here, very shortly, we were joined by the others, who had likewise failed to locate our missing leader.
It would be useless to detail our renewed and hour-long search of the myriad vaults, many of which we had not hitherto explored. All were empty, as far as any sign of life was concerned. I remember passing once more through the vault in which I had seen the dark, rounded patch on the ceiling, and noting with a shudder that the patch was gone. It was a miracle that we did not lose ourselves in that underworld maze; but at last we came back to the final catacomb in which we had found the shackled mummy.
We heard a measured and recurrent clangor as we neared the place—a most alarming and mystifying sound under the circumstances. It was like the hammering of ghouls on some forgotten mausoleum. When we drew nearer, the beams of our torches revealed a sight that was no less unexplainable than unexpected. A human figure, with its back toward us and the head concealed by a swollen black object that had the size and form of a sofa cushion, was standing near the remains of the mummy and was striking at the wall with a pointed metal bar. How long Octave had been there, and where he had found the bar, we could not know. But the blank wall had crumbled away beneath his furious blows, leaving on the floor a pile of cement-like fragments; and a small, narrow door, of the same ambiguous material as the cinerary urns and the fumigating-pan, had been laid bare.
Amazed, uncertain, inexpressibly bewildered, we were all incapable of action or volition at that moment. The whole business was too fantastic and too horrifying, and it was plain that Octave had been overcome by some sort of madness. I, for one, felt the violent upsurge of sudden nausea when I had identified the loathsomely bloated thing that clung to Octave’s head and drooped in obscene tumescence on his neck. I did not dare to surmise the causation of its bloating.