"I'm curious about this reference to Earth-and must know if there's anything to it."
Dors said, "It's a legend and not even an interesting one. It is routine. The names differ from planet to planet, but the content is the same. There is always the tale of an original world and a golden age. There is a longing for a supposedly simple and virtuous past that is almost universal among the people of a complex and vicious society. In one way or another, this is true of all societies, since everyone imagines his or her own society to be too complex and vicious, however simple it may be. Mark that down for your psychohistory."
"Just the same," said Seldon, "I have to consider the possibility that one world did once exist. Aurora... Earth... the name doesn't matter. In fact-"
He paused and finally Dors said, "Well?"
Seldon shook his head. "Do you remember the hand-on-thigh story you told me in Mycogen? It was right after I got the Book from Raindrop Forty-Three... Well, it popped into my head one evening recently when we were talking to the Tisalvers. I said something that reminded me, for an instant-"
"Reminded you of what?"
"I don't remember. It came into my head and went out again, but somehow every time I think of the single-world notion, it seems to me I have the tips of my fingers on something and then lose it."
Dors looked at Seldon in surprise. "I don't see what it could be. The hand-on-thigh story has nothing to do with Earth or Aurora."
"I know, but this... thing... that hovers just past the edge of my mind seems to be connected with this single world anyway and I have the feeling that I must find out more about it at any cost. That... and robots."
"Robots too? I thought the Elders' aerie put an end to that."
"Not at all. I've been thinking about them." He stared at Dors with a troubled look on his face for a long moment, then said, "But I'm not sure."
"Sure about what, Hari?"
But Seldon merely shook his head and said nothing more.
Dors frowned, then said, "Hari, let me tell you one thing. In sober history-and, believe me, I know what I'm talking about there is no mention of one world of origin. It's a popular belief, I admit. I don't mean just among the unsophisticated followers of folklore, like the Mycogenians and the Dahlite heatsinkers, but there are biologists who insist that there must have been one world of origin for reasons that are well outside my area of expertise and there are the more mystical historians who tend to speculate about it. And among the leisure-class intellectuals, I understand such speculations are becoming fashionable. Still, scholarly history knows nothing about it."
Seldon said, "All the more reason, perhaps, to go beyond scholarly history. All I want is a device that will simplify psychohistory for me and I don't care what the device is, whether it is a mathematical trick or a historical trick or something totally imaginary. If the young man we've just talked to had had a little more formal training, I'd have set him on the problem. His thinking is marked by considerable ingenuity and originality-"
Dors said, "And you're really going to help him, then?"
"Absolutely. Just as soon as I'm in a position to."
"But ought you to make promises you're not sure you'll be able to keep?"
"I want to keep it. If you're that stiff about impossible promises, consider that Hummin told Sunmaster Fourteen that I'd use psychohistory to get the Mycogenians their world back. There's just about zero chance of that. Even if I work out psychohistory, who knows if it can be used for so narrow and specialized a purpose? There's a real case of promising what one can't deliver."
But Dors said with some heat, "Chetter Hummin was trying to save our lives, to keep us out of the hands of Demerzel and the Emperor. Don't forget that. And I think he really would like to help the Mycogenians."
"And I really would like to help Yugo Amaryl and I am far more likely to be able to help him than I am the Mycogenians, so if you justify the second, please don't criticize the first. What's more, Dors"-and his eyes flashed angrily-"I really would like to find Mother Rittah and I'm prepared to go alone."
"Never!" snapped Dors. "If you go, I go."
67.
Mistress Tisalver returned with her daughter in tow an hour after Amaryl had left on this way to his shift. She said nothing at all to either Seldon or Dors, but gave a curt nod of her head when they greeted her and gazed sharply about the room as though to verify that the heatsinker had left no trace. She then sniffed the air sharply and looked at Seldon accusingly before marching through the common room into the family bedroom.
Tisalver himself arrived home later and when Seldon and Dors came to the dinner table, Tisalver took advantage of the fact that his wife was still ordering some last-minute details in connection with the dinner to say in a low voice, "Has that person been here?"
"And gone," said Seldon solemnly. "Your wife was out at the time."
Tisalver nodded and said, "Will you have to do this again?"
"I don't think so," said Seldon.
"Good."
Dinner passed largely in silence, but afterward, when the daughter had gone to her room for the dubious pleasures of computer practice, Seldon leaned back and said, "Tell me about Billibotton."
Tisalver looked astonished and his mouth moved without any sound issuing.
Casilia, however, was less easily rendered speechless. She said, "Is that where your new friend lives? Are you going to return the visit?"
"So far," said Seldon quietly, "I have just asked about Billibotton."