Sargenuti nodded in a sardonic manner. "Even in the face of a threat the great Doctor Kingallis must experiment!" "I'll have none of your sarcasm!" snapped Kingallis. "You are not my equal by four groups. You are my underling and will therefore do my bidding with no quarrel." "Yes, master," sneered Sargenuti. Kingallis stepped forward and slapped the other across the face with the back of his hand. Sargenuti stood four inches taller than the doctor and outweighed him by at least thirty pounds. He could have broken Kingallis in half with his bare hands but he accepted the insult across his face without flinching nor attempt to retaliate. "Because we are isolated here, far from our normal surroundings, you have become slovenly in your attitude," snapped Kingallis. "You are no planner, Sargenuti. Your method is acceptable in some cases but you have not the intellectual equipment to cope with a situation as involved as this is. "Whether you continue as you are, advance in your work or are dropped a group depends upon the future. Suppose there were several people involved that have his power?" "There cannot be," returned Sargenuti. "Fool! If there is one there may be others. Now do as I say without argument!" Carroll listened to this discussion with interest. From it he learned that there was obviously some plot against the Solar System and that he, Carroll, was possessed of some factor that made his continuance dangerous to their plotting. He half-smiled and said, "There are many like me." Kingallis turned back to his captive and shook his head. "No," he said. "There are not! Sargenuti had no trouble until he ran into James Forrest Carroll. That is why he is bloated with delusions of grandeur. He thinks because he has had no competition that he is supreme. "He forgets the platitude, 'It is a sharp blade that cuts but cheese!' It is notable, however, that the first time he met James Forrest Carroll he was forced to call for help." "I was puzzled," admitted Sargenuti. "A slightly more intelligent moron would have known that this man was capable of avoiding your block," snapped Kingallis. "When