"He's our first case," Taggert admitted. "We'll have to probe everything out of him and construct symbol-theory around what we get. I'll be surprised if we get anywhere at all in the first six months."

Senator Kerotski put his hand over his eyes. "I give up. First the Chinese Soviet kidnaps Dr. Ch'ien and we have to scramble like maniacs to get him back before they find out that he's building a space drive that will make the rocket industry obsolete. Then we have to find out what's causing the rash of accidents that is holding up Dr. Theodore Nordred's antigravity project. And now, just as everything is coming to a head in both departments, we find that a meteor is going to hit Moonbase One sometime between thirty and sixty days from now." He spread apart the middle and ring fingers of the hand that covered his eyes and looked at Taggert through one eye. "And now you tell me that the only man who can pinpoint that time more exactly for us is of no use whatever to us. If we knew when that meteor was due to arrive, we would be able to spot and deflect it in time. It must be of pretty good size if it's going to demolish the whole base."

"How do you know it's going to be a meteor?"

"You think the Soviets would try to bomb it? Don't be silly, Taggert," Kerotski said, grinning.

Taggert grinned back. "I'm not thinking they'd bomb us; but I'm trying to look at all the angles."

The worried look came back to the senator's pandalike face. "We have to do something. If only we knew that Forsythe's prediction will really come off. Or, if it will, then exactly when? And is there anything we can do about it, or will it be like the airline incident. If we hadn't made them switch planes, nothing would have happened. What if, no matter what we do, Moonbase One goes anyway?

"Remember, we haven't yet built Moonbase Two. If our only base on the moon is destroyed, the Soviets will have the whole moon to themselves. Have you any suggestions?"

"Sure," said Taggert. "Ask yourself one question: What is the purpose of Moonbase One?"

Slowly, a beatific smile spread itself over the senator's face.