Hummin smiled slightly. “Dors has placed this room in a Distortion Field. I can be pretty sure that no Imperial agent at the University-if there is one-has the expense to penetrate it. You are a suspicious person, Seldon.”

“Not by nature,” said Seldon. “Listening to you in the park and afterward- You are a persuasive person, Hummin. By the time you were through, I was ready to fear that Eto Demerzel was lurking in every shadow.”

“I sometimes think he might be,” said Hummin gravely.

“If he was,” said Seldon, “I wouldn’t know it was he. What does he look like?”

“That scarcely matters. You wouldn’t see him unless he wanted you to and by then it would all be over, I imagine-which is what we must prevent. Let’s talk about that jet-down you saw.”

Seldon said, “As I told you, Hummin, you filled me with fears of Demerzel. As soon as I saw the jet-down, I assumed he was after me, that I had foolishly stepped outside the protection of Streeling University by going Upperside, that I had been lured up there for the specific purpose of being picked up without difficulty.”

Dors said, “On the other hand, Leggen-”

Seldon said quickly, “Was he here last night?”

“Yes, don’t you remember?”

“Vaguely. I was dead tired. It’s all a blur in my memory.”

“Well, when he was here last night, Leggen said that the jet-down was merely a meteorological vessel from another station. Perfectly ordinary. Perfectly harmless.”

“What?” Seldon was taken aback. “I don’t believe that.”

Hummin said, “Now the question is: Why don’t you believe that? Was there anything about the jet-down that made you think it was dangerous? Something specific, that is, and not just a pervasive suspicion placed in your head by me.”

Seldon thought back, biting his lower lip. He said, “Its actions. It seemed to push its forepart below the cloud deck, as though it were looking for something, then it would appear in another spot just the same way, then in another spot, and so on. It seemed to be searching Upperside methodically, section by section, and homing in on me.”

Hummin said, “Perhaps you were personifying, Seldon. You may have been treating the jet-down as though it was a strange animal looking for you. It wasn’t, of course. It was simply a jet-down and if it was a meteorological vessel, its actions were perfectly normal… and harmless.”

Seldon said, “It didn’t seem that way to me.”

Hummin said, “I’m sure it didn’t, but we don’t actually know anything. Your conviction that you were in danger is simply an assumption. Leggen’s decision that it was a meteorological vessel is also only an assumption.”

Seldon said stubbornly, “I can’t believe that it was an entirely innocent event.”

“Well then,” said Hummin, “suppose we assume the worst-that the vessel was looking for you. How would whoever sent that vessel know you would be there to seek?”

Dors interjected, “I asked Dr. Leggen if he had, in his report of the forthcoming meteorological work, included the information that Hari would be with the group. There was no reason he should in the ordinary course of events and he denied that he had, with considerable surprise at the question. I believed him.”

Hummin said thoughtfully, “Don’t believe him too readily. Wouldn’t he deny it, in any case? Now ask yourself why he allowed Seldon to come along in the first place. We know he objected initially, but he did relent, without much fight. And that, to me, seems rather out of character for Leggen.”

Dors frowned and said, “I suppose that does make it a bit more likely that he did arrange the entire affair. Perhaps he permitted Hari’s company only in order to put him in the position of being taken. He might have received orders to that effect. We might further argue that he encouraged his young intern, Clowzia, to engage Hari’s attention and draw him away from the group, isolating him. That would account for Leggen’s odd lack of concern over Hari’s absence when it came time to go below. He would insist that Hari had left earlier, something he would have laid the groundwork for, since he had carefully showed him how to go down by himself. It would also account for his reluctance to go back up in search of him, since he would not want to waste time looking for someone he assumed would not be found.”

Hummin, who had listened carefully, said, “You make an interesting case against him, but let’s not accept that too readily either. After all, he did come Upperside with you in the end.”

“Because footsteps had been detected. The Chief Seismologist had [been] witness to that.”

“Well, did Leggen show shock and surprise when Seldon was found? I mean, beyond that of finding someone who had been brought into extreme peril through Leggen’s own negligence. Did he act as though Seldon wasn’t supposed to be there? Did he behave as though he were asking himself: How is it they didn’t pick him up?”

Dors thought carefully, then said, “He was obviously shocked by the sight of Hari lying there, but I couldn’t possibly tell if there was anything to his feelings beyond the very natural horror of the situation.”

“No, I suppose you couldn’t.”

But now Seldon, who had been looking from one to the other as they spoke and who had been listening intently, said, “I don’t think it was Leggen.”

Hummin transferred his attention to Seldon. “Why do you say that?”

“For one thing, as you noted, he was clearly unwilling to have me come along. It took a whole day of argument and I think he agreed only because he had the impression that I was a clever mathematician who could help him out with meteorological theory. I was anxious to go up there and, if he had been under orders to see to it that I was taken Upperside, there would have been no need to be so reluctant about it.”

“Is it reasonable to suppose he wanted you only for your mathematics? Did he discuss the mathematics with you? Did he make an attempt to explain his theory to you?”

“No,” said Seldon, “he didn’t. He did say something about going into it later on, though. The trouble was, he was totally involved with his instruments. I gathered he had expected sunshine that hadn’t showed up and he was counting on his instruments having been at fault, but they were apparently working perfectly, which frustrated him. I think this was an unexpected development that both soured his temper and turned his attention away from me. As for Clowzia, the young woman who preoccupied me for a few minutes, I do not get the feeling, as I look back on it, that she deliberately led me away from the scene. The initiative was mine. I was curious about the vegetation on Upperside and it was I who drew her away, rather than vice versa. Far from Leggen encouraging her action, he called her back while I was still in sight and I moved farther away and out of sight entirely on my own.”

“And yet,” said Hummin, who seemed intent on objecting to every suggestion that was made, “if that ship was looking for you, those on board must have known you’d be there. How would they know-if not from Leggett?”

“The man I suspect,” said Seldon, “is a young psychologist named Lisung Randa”

“Randa?” said Dors. “I can’t believe that. I know him. He simply would not be working for the Emperor. He’s anti-Imperialist to the core.”

“He might pretend to be,” said Seldon. “In fact, he would have to be openly, violently, and extremely anti-Imperialist if he was trying to mask the fact that he is an Imperial agent.”

“But that’s exactly what he’s not like,” said Dors. “He is not violent and extreme in anything. He’s quiet and good-natured and his views are always expressed mildly, almost timidly. I’m convinced they’re genuine.”

“And yet, Dors,” said Seldon earnestly, “it was he who first told me of the meteorological project, it was he who urged me to go Upperside, and it was he who persuaded Leggen to allow me to join him, rather exaggerating my mathematical prowess in the process. One must wonder why he was so anxious to get me up there, why he should labor so hard.”