"None of the children has turned out as well as my first two experiments, Brute and Adam. Both of them were born about twenty-five years ago--terrestrial years, that is--and developed into normal, even superior physical specimens. Unfortunately, their mental development was retarded. Adam was the brighter of the two, and Brute killed him tonight, shortly before your arrival." Maya shivered. "Somehow, it seems horrible to me, experimenting with human lives this way," she said. "It's being done for a good cause, Maya," said Nuwell. "Dr. Hennessey's objective is to help man live better on Mars. After all, there is nothing nobler than the individual's sacrifice of himself for his fellows, whether it's voluntary or involuntary." "But what about the mothers of these children?" asked Maya. "The big problem is to reach them as soon as possible after conception," said Goat, misinterpreting her question. "We do this by magnetic detectors, which report instantly the conjunction of the positive and negative. The surgery is performed, as quickly as possible, utilizing the suspended animation technique which is being developed toward interstellar travel." "I wasn't asking about the technical aspects," said Maya. "What I want to know is, what sort of mothers will permit you to experiment this way on their unborn children, especially seeing the results you've already obtained?" Goat started to answer, but Nuwell forestalled him. "There are some things that are none of your business, darling," he said. "The terrestrial government sent you here on a specific assignment, and I don't think you should inquire into matters which are classified as secret by the local government, which don't have anything to do with that assignment. Now, Dr. Hennessey, just what sort of survival qualities have you been able to develop in these experiments?" "There's no witchcraft involved," retorted Goat, with a sardonic grimace. "I haven't accused you," said Nuwell quickly. "No, but I keep up with events, even out here, well enough to know that you're the Mars City government's chief nemesis where there's any suspicion of extrasensory perception. I doubt that you chose to make this trip yourself without reason, Mr. Eli." "It's merely a routine inspection," murmured Nuwell. Goat indicated one of his charts, showing a diagram of genes and chromosomes in different colors. "This is my original chart," he said. "I copied it from one belonging to the Martians many years ago, and my genetic alteration of Brute and Adam were based on it. But I must have miscopied it, or else the Martians didn't have the objective I thought they did in it, because I could find no alteration of genes affecting lung capacity or oxygen utilization. My own subsequent charts, on which later experiments were based, are alterations of this." "But just what is your objective, and how well have you succeeded?" persisted Nuwell. "Ability to survive under Martian conditions."