Ghek caused the rykor to assume a sitting position with its back against the wall where it might remain without direction from his brain. Then he released his contact with its spinal cord; but remained in position upon its shoulders, waiting and watching, for the kaldane's curiosity was aroused. He had not long to wait before the lights were flashed on and one of the locked doors opened to admit a half-dozen warriors. They approached him rapidly and worked quickly. First they removed all his weapons and then, snapping a fetter about one of the rykor's ankles, secured him to the end of one of the chains hanging from the walls. Next they dragged the long table to a new position and there bolted it to the floor so that an end, instead of the middle, was directly before the prisoner. On the table before him they set food and water and upon the opposite end of the table they laid the key to the fetter. Then they unlocked and opened all the doors and departed. * * * * * When Turan the panthan regained consciousness it was to the realization of a sharp pain in one of his forearms. The effects of the gas departed as rapidly as they had overcome him so that as he opened his eyes he was in full possession of all his faculties. The lights were on again and in their glow there was revealed to the man the figure of a giant Martian rat crouching upon the table and gnawing upon his arm. Snatching his arm away he reached for his short-sword, while the rat, growling, sought to seize his arm again. It was then that Turan discovered that his weapons had been removed--short-sword, long-sword, dagger, and pistol. The rat charged him then and striking the creature away with his hand the man rose and backed off, searching for something with which to strike a harder blow. Again the rat charged and as Turan stepped quickly back to avoid the menacing jaws, something seemed to jerk suddenly upon his right ankle, and as he drew his left foot back to regain his equilibrium his heel caught upon a taut chain and he fell heavily backward to the floor just as the rat leaped upon his breast and sought his throat. The Martian rat is a fierce and unlovely thing. It is many-legged and hairless, its hide resembling that of a newborn mouse in repulsiveness. In size and weight it is comparable to a large Airedale terrier. Its eyes are small and close-set, and almost hidden in deep, fleshy apertures. But its most ferocious and repulsive feature is its jaws, the entire bony structure of which protrudes several inches beyond the flesh, revealing five sharp, spadelike teeth in the upper jaw and the same number of similar teeth in the lower, the whole suggesting the appearance of a rotting face from which much of the flesh has sloughed away.