"What we desire is a bacillus that will take effect when it is breathed in through the lungs. If the disease is of such a nature as to instill fear in the minds of observers, so much the better; but that is unnecessary. When we discover a microbe of that nature, we will be ready to act. "By the way, our work has been lessened to a great degree by the fact that you are a bacteriologist. The knowledge we gain from you has enabled us to eliminate at least half of our microbes. All Venerian germs that are duplicated on Earth will be left out of our calculations. Only those unknown to your planet will be tried upon you." * * * * * When the Venerian had finished his explanation, each word of which had sounded like a death knell to Parkinson, the bacteriologist lay on the slab in the grip of a nightmare of horror. The cold-blooded brutality of these Venerian beasts, and the thought of lying there helpless with his body the prey of unknown diseases, filled him with a maddening fear and dread. Mightily he struggled to break the uncanny bonds that held him paralyzed, but it was of no avail. His body retained its helpless rigidity. Only for a moment was Parkinson left to his fearful musings; then the Venerians begin their work. A tall table on wheels was brought from somewhere, and drawn to the side of the slab. Upon this various instruments were placed, side by side with numerous flat vessels containing germ cultures. Parkinson saw none of this, but from the sounds that came to his ears he could infer what was taking place. Finally, everything seemed to be in readiness. The Venerian leader bent over Parkinson for a moment: and the latter felt a sharp pain in his side. Then the Venerian withdrew. Slowly, interminably, the time dragged by while the microbes that had been introduced into his body were at their work. How long he lay there with the Venerians watching, he could not tell, but it seemed to be hours. During that time he felt himself gripped by an increasingly violent fever. Unbearable heat flooded his body. And because of his helplessness, he could do nothing to relieve his pain and discomfort. It was maddening! When he thought he had reached the limit of his endurance, and felt that he would go insane in another moment, the Venerian leader injected something into his side. He became aware of an immediate sense of relief; in an unbelievably short time the fever had left him and he was himself again.