Natala knew she ought to fight while she had the chance, but she simply could not summon up the courage. Never much of a fighter, the darkness, violence and horror of her adventure had left her limp, mentally and physically. Thalis snatched the dagger from her lax fingers and threw it contemptuously aside.
"You little slut!" she ground between her teeth, slapping the girl viciously with either hand. "Before I drag you down the corridor and throw you into Thog's jaws I'll have a little of your blood myself! You would dare to knife me—well, for that audacity you shall pay!"
Seizing her by the hair, Thalis dragged her down the corridor a short distance, to the edge of the circle of light. A metal ring showed in the wall, above the level of a man's head. From it depended a silken cord. As in a nightmare Natala felt her tunic being stripped from her, and the next instant Thalis had jerked up her wrists and bound them to the ring, where she hung, naked as the day she was born, her feet barely touching the floor. Twisting her head, Natala saw Thalis unhook a jewel-handled whip from where it hung on the wall, near the ring. The lashes consisted of seven round silk cords, harder yet more pliant than leather thongs.
With a hiss of vindictive gratification, Thalis drew back her arm, and Natala shrieked as the cords curled across her loins. The tortured girl writhed, twisted and tore agonizedly at the thongs which imprisoned her wrists. She had forgotten the lurking menace her cries might summon, and so apparently had Thalis. Every stroke evoked screams of anguish. The whippings Natala had received in the Shemite slave-markets paled to insignificance before this. She had never guessed the punishing power of hard-woven silk cords. Their caress was more exquisitely painful than any birch twigs or leather thongs. They whistled venomously as they cut the air.
Then, as Natala twisted her tear-stained face over her shoulder to shriek for mercy, something froze her cries. Agony gave place to paralyzing horror in her beautiful eyes.
Struck by her expression, Thalis checked her lifted hand and whirled quick as a cat. Too late! An awful cry rang from her lips as she swayed back, her arms upflung. Natala saw her for an instant, a white figure of fear etched against a great black shapeless mass that towered over her; then the white figure was whipped off its feet, the shadow receded with it, and in the circle of dim light Natala hung alone, half fainting with terror.
From the black shadows came sounds, incomprehensible and blood-freezing. She heard Thalis's voice pleading frenziedly, but no voice answered. There was no sound except the Stygian's panting voice, which suddenly rose to screams of agony, and then broke in hysterical laughter, mingled with sobs. This dwindled to a convulsive panting, and presently this too ceased, and a silence more terrible hovered over the secret corridor.
Nauseated with horror, Natala twisted about and dared to look fearfully in the direction the black shape had carried Thalis. She saw nothing, but she sensed an unseen peril, more grisly than she could understand. She fought against a rising tide of hysteria. Her bruised wrists, her smarting body were forgotten in the teeth of this menace which she dimly felt threatened not only her body, but her soul as well.
She strained her eyes into the blackness beyond the rim of the dim light, tense with fear of what she might see. A whimpering gasp escaped her lips. The darkness was taking form. Something huge and bulky grew up out of the void. She saw a great misshapen head emerging into the light. At least she took it for a head, though it was not the member of any sane or normal creature. She saw a great toad-like face, the features of which were as dim and unstable as those of a specter seen in a mirror of nightmare. Great pools of light that might have been eyes blinked at her, and she shook at the cosmic lust reflected there. She could tell nothing about the creature's body. Its outline seemed to waver and alter subtly even as she looked at it; yet its substance was apparently solid enough. There was nothing misty or ghostly about it.
As it came toward her, she could not tell whether it walked, wriggled, flew or crept. Its method of locomotion was absolutely beyond her comprehension. When it had emerged from the shadows she was still uncertain as to its nature. The light from the radium gem did not illumine it as it would have illumined an ordinary creature. Impossible as it seemed, the being seemed almost impervious to the light. Its details were still obscure and indistinct, even when it halted so near that it almost touched her shrinking flesh. Only the blinking toad-like face stood out with any distinctness. The thing was a blur in the sight, a black blot of shadow that normal radiance would neither dissipate nor illuminate.
