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“But now it is all different,” Kresh said.

“Now it’s different,” Fredda agreed. “Now there is a specific and extreme threat against a known individual. Normally that would not be enough to cause a First Law crisis. A robot on this side of the world would know that the robots on that side of the world would do all that could be done. But with the overarching stress of the Comet Grieg impact on the one side, along with the high probability that Beddle is somewhere in the impact area—that combination of overlapping First Law stresses could force any robot into action.”

“What do you mean by action?” Kresh asked.

“Anything. Everything. I couldn’t even begin to sort out all the permutations between now and the impact. But the basic point is that Beddle’s disappearance could create a tremendous First Law crisis for every robot on the planet. If Beddle is indeed in the impact area—or even if there is merely reason to believe he might be—then any robot made aware of his circumstances will, in theory, be required to go to his rescue, or to work in some other way to save him—perhaps by trying to prevent the comet impact. Suppose some team of robots grabbed a spacecraft and headed for Grieg to try and destroy the comet? Of course, higher-function robots will understand that an attempt to prevent the comet’s impact might wreck hopes for reviving the planet’s ecology. That would almost certainly result in harm to any number of human beings, many of them not yet even born.

“Then there is the impossibility of proving a negative. Even with the best scanning system in the universe, unless Beddle walks out somehow, there can be no way of being absolutely sure he is not still in the impact area, or the danger zone surrounding it. It is therefore, at least in theory, possible that he is actually safe. If so, then working to save Beddle is wasted effort, and could actually cause danger to other nearby humans by preventing attention to their evacuation. It is just the sort of First Law crisis that could tie a robot in knots, even to the point of inducing permanent damage.

“It’s a morass of complex uncertainties, with no clear right action. There’s no telling how a robot would deal would balance all the conflicting First Law demands.”

“So what do we do?”

“We keep the robots out of it,” said Fredda. “Right now we have kept this very close at this end. You know as well as I do that standard police procedure is to keep this sort of crime as quiet as possible to prevent robots from swarming allover the crime scene. Imagine if all the Three-Law robots working in the Utopia region dropped their current work and headed into the search area. So we keep robots from knowing. Donald is the only robot here who knows about it. At that end, I would assume the Crime Scene robots, the Air Traffic Control robots, and Devray’s personal robots are the only ones who know or could figure out that it was a kidnapping. We need to deactivate all of them, now, immediately, and keep them turned off until all this is over.”

Kresh frowned and started pacing back and forth. “Burning devils of damnation. I hate to say it, but you’re right. You’re absolutely right. You contact Devray—and place the call yourself, manually. Talk directly to him, and make sure no robots can hear. Tell him what you told me. It’s going to be bloody hard to get through these next few days without Donald, but I don’t see that I have any choice. I’ll go to the library and shut him down myself.”

“Right,” said Fredda. A very straightforward plan. As she turned toward the comm screen and set to work placing the call, she wondered if it would all be that easy.

“DONALD?” KRESH CALLED out as he stepped into the library. Odd. Donald should have been standing in the center of the room, waiting. “Donald?” There was no answer. “Donald, where are you?” Still silence. “Donald, I order you to come to me and answer this call.”

Still there was nothing.

But he had given Donald a direct order. A clear, specific, unambiguous order. Nothing could have prevented him from obeying that order except—

And then Alvar Kresh cursed himself as a fool. Of course. It was painfully obvious. If they could figure it out, so could Donald. Up to and including the idea of deactivating the robots who knew about the Beddle kidnapping.

And First Law would require Donald to avoid being turned off, if that was the only way to prevent harm to a human being. He was gone. He had run away.

And the devil only knew what Donald had in mind.

18

FREDDA LEVING WONDERED if she had done the right thing, as she readied herself for a much-belated bedtime, and watched her husband climb into bed beside her. The call to Devray hadn’t involved any deep and abiding moral issues, and the fruitless search for Donald had been nothing worse than frustrating. But then there was that second call she had made, the one she did not dare tell Alvar about.

In fact, she was kidding herself. She knew perfectly well that she had done the wrong thing. She had interfered with a police investigation.

But that creator’s debt had called to her, somehow. And she knew Justen Devray, knew the sort of opinion he had of Caliban and the New Law robots. Given half the chance, Devray might well shoot first and ask questions later. Or someone else might. And she owed her robots, her creations, better than that.

Right or wrong, she had had no real choice but to do it. Somebody had to warn them.

CALIBAN HIMSELF WAS no less ambivalent about the situation. He sat at his desk in the New Law robots’ offices in Depot and watched the hustle and bustle all about him as he thought it through.

He felt very little sympathy for Simcor Beddle. It was hard to develop a great deal of concern for a man who desired one’s own extermination. But of course, from the New Law robot point of view, the safety of Simcor Beddle was not the central problem. It seemed inevitable that a major police operation in the general vicinity of Valhalla was likely to have some effect on the evacuation of the New Law robot city. The question was, how much effect, and of what sort.

Caliban stood up and made his way through the crowded main room toward Prospero’s private office at the front of the building. New Law robots were working at maximum speed everywhere, desperately rushing to find transport for their fellows and themselves.

Caliban stepped into Prospero’s office—and found that there were two other robots ahead of him, waiting to discuss other problems with their leader. Prospero was finishing up an audio call.

Their leader. Interesting. Caliban watched Prospero as he finished his call and turned to the first waiting robot. There had been at time when Prospero’s claims to leadership of the New Law robots had been tenuous at best. While he had gradually gained acceptance over the years, nothing had done as much for his prestige as Comet Grieg. It was almost as if he had drawn power from the crisis itself, using it to propel himself forward even as he led the New Law robots out of danger. Perhaps it was merely that now the New Law robots truly needed a leader, and Prospero was there, offering himself. Or perhaps there was something about Prospero in particular that drew them to him.

He had certainly been active enough on their behalf, shuttling back and forth between Valhalla and Depot at all hours, cajoling whatever transport he could out of whatever officials were listening, constantly on the move, always seeming to turn up precisely when he was most needed.