"You think it would be better, perhaps, if we killed them all without warning?" Olbu said, turning toward the director.

"Really, Mr. Olbu," said Rodkey. "You don't intend to blot us out, do you?"

"That decision is hardly mine to make," said Olbu. "I'll have to report to my superiors. If you're dangerous, you'll have to be erased, and there's nothing that can be done about it."

"Excuse me a moment." Rodkey rose, went to the phone and ordered liquor sent up to the room. He hung up the receiver. "I think it's best that we make your stay here a pleasant one, Olbu."

"If you intend to bribe me, I'm afraid you'll have no success," said Olbu. "I was chosen because I am impeccable."

"I'm quite sure of it," said Dr. Bruber. "And perhaps there is something in your premise that not all human beings are desirable. I should like to know how Earth is making out."

Olbu shrugged his shoulders. "So far I've seen nothing worth saving," he said. "You're a vain lot. You're trivial. You have no respect for the dignity of Man. And your worst fault is ambition. I suppose you have wars?"

"Not for a long time. Two or three years anyhow," said Rodkey.

"How long is a year? Ah yes, I forgot. It is the period of the planet on its journey around the sun. And how long does that take? One year. The usual nonsensical way you have of defining things. You don't even know how to measure time."

"How very interesting!" exclaimed Dr. Bruber. "Actually it never occurred to me that there might be an absolute method of measuring time. What is it?"