"Stand back!" he shouted. "My strength is not as these weaklings you have conquered! Stand back or die!" He advanced into the room. Several men leaped upon him but he swept them down with a wave of his arm. He came to Rod, eye stretched close.

"I have much to thank you for, my creation!" he said. "You have saved me considerable trouble. Did you think it your mind that set these miserable humans free? Fool! I gave you my idea long before you regained consciousness in my compartments. And your every action was the result of my initial impulse, even your pulling the false suspension switch upon my shell. I instilled it in your mind to kill every Capek if you could!"

The crowds had drawn away, shrunk back from the two machines. Ralph and Vee stood at the edge of the crowd, transfixed.

"Now I am ruler," shouted 83. "That was my original purpose, you remember." He raised one hand dramatically. "I command you to take these slugs back to the stock yards!"

Rod's mind whirled. Was he in this monster's power? Had he no original thoughts? Was it thus that he had survived the destruction of the power plant? Something within him told him to obey; but the hatred of the machine, the Capek before him, was greater than the urge to obedience. He might be at his bidding but 83 had overlooked one thing....

"Whether it is your idea or mine, I do not know," said Rod, "but I shall kill you—for you, too, are a Capek!" He rolled slowly forward.

"Stop!" 83 faltered. "See this body, mind. It is as strong as yours. I made both. What I created, I can destroy!"

Rod said nothing. He shot out an arm and grasped the long neck.

With a snap of the cable, 83 tore loose from his tendrils. He was more powerful than the others had been.