Conan dumped the senseless black on the floor, and lifted his sword. The Cimmerian had lived too long in the wild places of the world to have any illusions about mercy. The only safe enemy was a headless enemy. But before he could strike, a startling scream checked the lifted blade. It came from the oracle chamber.

"Conan! Conan!She's come back! " The shriek ended in a gurgle and a scraping shuffle.

With an oath Conan dashed out of the alcove, across the throne dais and into the oracle chamber, almost before the sound had ceased. There he halted, glaring bewilderedly. To all appearances Muriela lay placidly on the dais, eyes closed as if in slumber.

"What in thunder are you doing?" he demanded acidly. "Is this any time to be playing jokes — "

His voice trailed away. His gaze ran along the ivory thigh molded in the close-fitting silk skirt. That skirt should gape from girdle to hem. He knew, because it had been his own hand that tore it, as he ruthlessly stripped the garment from the dancer's writhing body. But the skirt showed no rent. A single stride brought him to the dais and he laid his hand on the ivory body — snatched it away as if it had encountered hot iron instead of the cold immobility of death.

"Crom!" he muttered, his eyes suddenly slits of balefire. "It's not Muriela! It's Yelaya!"

He understood now that frantic scream that had burst from Muriela's lips when she entered the chamber. The goddess had returned. The body had been stripped by Zargheba to furnish the accouterments for the pretender. Yet now it was clad in silk and jewels as Conan had first seen it. A peculiar prickling made itself manifest among the sort hairs at the base of Conan's scalp.

"Muriela!" he shouted suddenly. "Muriela! Where the devil are you?"

The walls threw back his voice mockingly. There was no entrance that he could see except the golden door, and none could have entered or departed through that without his knowledge. This much was indisputable: Yelaya had been replaced on the dais within the few minutes that had elapsed since Muriela had first left the chamber to be seized by Gwarunga; his ears were still tingling with the echoes of Muriela's scream, yet the Corinthian girl had vanished as if into thin air. There was but one explanation, if he rejected the darker speculation that suggested the supernatural — somewhere in the chamber there was a secret door. And even as the thought crossed his mind, he saw it.

In what had seemed a curtain of solid marble, a thin perpendicular crack showed and in the crack hung a wisp of silk. In an instant he was bending over it. That shred was from Muriela's torn skirt. The implication was unmistakable. It had been caught in the closing door and torn off as she was borne through the opening by whatever grim beings were her captors. The bit of clothing had prevented the door from fitting perfectly into its frame.

Thrusting his dagger-point into the crack, Conan exerted leverage with a corded forearm. The blade bent, but it was of unbreakable Akbitanan steel. The marble door opened. Conan's sword was lifted as he peered into the aperture beyond, but he saw no shape of menace. Light filtering into the oracle chamber revealed a short flight of steps cut out of marble. Pulling the door back to its fullest extent, he drove his dagger into a crack in the floor, proping it open. Then he went down the steps without hesitation. He saw nothing, heard nothing. A dozen steps down, the stair ended in a narrow corridor which ran straight away into gloom.

He halted suddenly, posed like a statue at the foot of the stair, staring at the paintings which frescoed the walls, half visible in the dim light which filtered down from above. The art was unmistakably Pelishti; he had seen frescoes of identical characteristics on the walls of Asgalun. But the scenes depicted had no connection with anything Pelishti, except for one human figure, frequently recurrent: a lean, white-bearded old man whose racial characteristics were unmistakable. They seemed to represent various sections of the palace above. Several scenes showed a chamber he recognized as the oracle chamber with the figure of Yelaya stretched upon the ivory dais and huge black men kneeling before it. And there behind the wall, in the niche, lurked the ancient Pelishti. And there were other figures, too — figures that moved through the deserted palace, did the bidding of the Pelishti, and dragged unnamable things out of the subterranean river. In the few seconds Conan stood frozen, hitherto unintelligible phrases in the parchment manuscript blazed in his brain with chilling clarity. The loose bits of the patern clicked into place. The mystery of Bit-Yakin was a mystery no longer, nor the riddle of Bit-Yakin's servants.

Conan turned and peered into the darkness, an icy finger crawling along his spine. Then he went along the corridor, cat-footed, and without hesitation, moving deeper and deeper into the darkness as he drew farther away from the stair. The air hung heavy with the odor he had scented in the court of the gong.

Now in utter blackness he heard a sound ahead of him — the shuffle of bare feet, or the swish of loose garments against stone, he could not tell which. But an instant later his outstretched hand encountered a barrier which he identified as a massive door of carved metal. He pushed against it fruitlessly, and his sword-point sought vainly for a crack. It fitted into the sill and jambs as if molded there. He exerted all his strength, his feet straining against the floor, the veins knotting in his temples. It was useless; a charge of elephants would scarcely have shaken that titanic portal.

As he leaned there he caught a sound on the other side that his ears instantly identified — it was the creak of rusty iron, like a lever scraping in its slot. Instinctively action followed recognition so spontaneously that sound, impulse and action were practically simultaneous. And as his prodigious bound carried him backward, there was the rush of a great bulk from above, and a thunderous crash filled the tunnel with deafening vibrations. Bits of flying splinters struck him — a huge block of stone, he knew from the sound, dropped on the spot he had just quitted. An instant's slower thought or action and it would have crushed him like an ant.

Conan fell back. Somewhere on the other side of that metal door Muriela was a captive, if she still lived. But he could not pass that door, and if he remained in the tunnel another block might fall, and he might not be so lucky. It would do the girl no good for him to be crushed into a purple pulp. He could not continue his search in that direction. He must get above ground and look for some other avenue of approach.

He turned and hurried toward the stair, sighing as he emerged into comparative radiance. And as he set foot on the first step, the light was blotted out, and above him the marble door rushed shut with a resounding reverberation.

Something like panic seized the Cimmerian then, trapped in that black tunnel, and he wheeled on the stair, lifting his sword and glaring murderously into the darkness behind him, expecting a rush of ghoulish assailants. But there was no sound or movement down the tunnel. Did the men beyond the door — if theywere men — believe that he had been disposed of by the fall of the stone from the roof, which had undoubtedly been released by some sort of machinery?

Then why had the door been shut above him? Abandoning speculation, Conan groped his way up the steps, his skin crawling in anticipation of a knife in his back at every stride, yearning to drown his semi-panic in a barbarous burst of bloodletting.

He thrust against the door at the top, and cursed soulfully to find that it did not give to his efforts. Then as he lifted his sword with his right hand to hew at the marble, his groping left encountered a metal bolt that evidently slipped into place at the closing of the door. In an instant he had drawn this bolt, and then the door gave to his shove. He bounded into the chamber like a slit-eyed, snarling incarnation of fury, ferociously desirous to come to grips with whatever enemy was hounding him.