Beyond the Black River by Robert E. Howard

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 todrown 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.
    The dagger was gone from the floor. The chamber was empty, and so was the dais. Yelaya had again vanished.
    “By Crom!” muttered the Cimmerian. “Is she alive, after all?”
    He strode out into the throne-room, baffled, and then, struck by a sudden thought, stepped behind the throne and peered into the alcove. There was blood on the smooth marble where he had cast down the senseless body of Gwarunga — that was all. The black man had vanished as completely as Yelaya.
    4. The Teeth of Gwahlur
    Baffled wrath confused the brain of Conan the Cimmerian. He knew no more how to go about searching for Muriela than he had known how to go about searching for the Teeth of Gwahlur. Only one thought occurred to him — to follow the priests. Perhaps at the hiding-place of the treasure some clue would be revealed to him. It was a slim chance, but better than wandering about aimlessly.
    As he hurried through the great shadowy hall that led to the portico he half-expected the lurking shadows to come to life behind him with rending fangs and talons. But only the beat of his own rapid heart accompanied him into the moonlight that dappled the shimmering marble.
    At the foot of the wide steps he cast about in the bright moonlight for some sign to show him the direction he must go. And he found it — petals scattered on the sward told where an arm or garment had brushed against a blossom-laden branch. Grass had been pressed down under heavy feet. Conan, who had tracked wolves in his native hills, found no insurmountable difficulty in following the trail of the Keshani priests.
    It led away from the palace, through masses of exotic-scented shrubbery where great pale blossoms spread their shimmering petals, through verdant, tangled bushes that showered blooms at the touch, until he came at last to a great mass of rock that jutted like a titan’s castle out from the cliffs at a point closest to the palace, which, however, was almost hidden from view by vine-interlaced trees. Evidently that babbling priest in Keshia had been mistaken when he said the Teeth were hidden in the palace. This trail had led him away from the place where Muriela had disappeared, but a belief was growing in Conan that each part of the valley was connected with that palace by subterranean passages.
    Crouching in the deep velvet-black shadows of the bushes, he scrutinized the great jut of rock which stood out in bold relief in the moonlight. It was covered with strange, grotesque carvings, depicting men and animals, and half-bestial creatures that might have been gods or devils. The style of art differed so strikingly from that of the rest of the valley, that Conan wondered if it did not represent a different era and race, and was itself a relic of an age lost and forgotten at whatever immeasurably distant date the people of Alkmeenon had found and entered the haunted valley.
    A great door stood open in the sheer curtain of the cliff, and a gigantic dragon’s head was carved about it so that the open door was like the dragon’s gaping mouth. The door itself was of carven bronze and looked to weigh several tons. There was no lock that