“Show-off,” muttered Steve, rolling his eyes. “All right, give us the third one, too. Get it over with.”
Marcia arched one eyebrow at Steve and spoke in a monotone. “The Third Law of Robotics says, ‘ A robot must protect its own existence as long as such protection does not conflict with the First or Second Laws.’ Now may we get on with this briefing, please?”
“The sooner the better,” said Steve.
“I’m almost finished with this part,” said Jane. “Marcia, the new problem is that the miniaturization turned out not to be permanent. The instability of that process has caused each component robot to return to full size at a different time in history.”
“I believe I understand. At that point, of course, their interaction with humans becomes virtually inevitable.” Marcia turned to Hunter. “Is this how you decide which period in history to visit?”
“Yes,” said Hunter. “The site of the explosion in our own time reveals where to look. I made calculations from the records in the console of the time travel sphere that tell me when MC 5 was likely to return to his normal size. We must go back and try to apprehend him as soon as we can, before he influences anyone significantly. Returning him to our time with the time travel sphere will prevent him from exploding.”
“I see,” said Marcia.
“We’re almost done with this background stuff,” said Steve. “Then we can head for the Bohung Institute. Tell her about Wayne, Hunter.”
“Perhaps you can summarize that problem for us.”
“I don’t feel like it.” Steve turned away from Marcia. “I’m just the hired hand, remember? I don’t handle this theoretical stuff.”
2
Steve could hardly believe that Hunter had hired someone as stuffy and pompous as Marcia. Though he felt bound by Hunter’s genuine need for him on this mission, Steve already disliked Marcia more than any team member since he had first met Chad Mora, the paleontologist who had joined them on their first mission, back to the Late Cretaceous in the time of dinosaurs. Having to pretend he was married to her was going to make this trip even worse.
“I’ll explain Wayne,” Jane said quickly. “Dr. Wayne Nystrom invented the Governor robots, and he is angry that the Oversight Committee is leaving him out. He wants to get at least one of the component robots under his power so he can try to find out what went wrong himself.”
“How does he intend to do that?” Marcia asked. “Is he trying to break in here or something?”
“No,” said Jane. “Before Hunter got here, Wayne found the time travel sphere and has arranged to use it himself. He can apparently move through time without returning here. But on one occasion, he came back here and found a robot we had left here to apprehend him.”
“What happened?” Marcia looked from Jane to Hunter. “You mean this robot didn’t catch him?”
“No,” said Jane. “We don’t know exactly what happened, but we instructed the robot, R. Ishihara, to hold Wayne. We explained these instructions on the grounds that Wayne’s actions in the past threaten harm to humans by changing history-the same concern we have over the component robots. That First Law imperative should have been sufficient to convince Ishihara to obey under the Second Law.”
“Then why didn’t it work?”
“I can only surmise,” said Jane. “My best estimation is that Wayne somehow created doubt in Ishihara’s mind that Wayne was causing a clear First Law imperative. That would eliminate the power of our Second Law instructions and allow Wayne to give him new ones.”
“Robots are so logical and direct,” said Marcia. “You really think this Wayne guy could talk Ishihara out of his direct orders?”
Jane shrugged. “He must have. After all, he’s a roboticist; he’s had plenty of experience with robot logic regarding the Three Laws.”
“Wayne should be easy to spot. Marco Polo’s family and Hunter and Jane may well be the only other Europeans in the capital.”
“His family?” Steve reluctantly turned to Marcia. “I’ve heard of Marco Polo, but…was his family there?”
“He traveled to China with his father, Niccolo, and his uncle Matteo,” said Marcia. “Marco will be, let’s see, thirty-six years old in 1290. In 1292, he and his family started their trip back home to Venice.”
“Hunter,” said Steve, “can we get on with it? We won’t find MC 5 by talking here.”
“Yes. You probably saw the Security vehicle waiting outside. I will drive us to the Bohung Institute. But I must ask all three of you if you have received the vaccinations I arranged for you. And have you completed your sleep courses in spoken Chinese, Mongol, and Italian of this time?”
Steve and Jane both nodded.
“Yes,” said Marcia. “I took the vaccinations a little while ago, and I arranged the sleep courses last night after I spoke to you from Houston. From your selection of Italian, I suppose you intend to meet the Polos?”
“I want to be ready for this eventuality,” said Hunter. “I noticed in Marco Polo’s book that he gives no indication that he ever learned Chinese.”
“That’s correct,” said Marcia. “He seems to have managed for his entire seventeen years in China speaking Persian and Mongol, though I believe he must have picked up a few phrases of Chinese along the way.”
“I would think so,” said Jane. “But if Steve and Marcia are masquerading as southern Chinese, why did you want them to know Italian?”
“I want them to be able to understand what they may hear if we meet the Polos,” said Hunter. “Obviously, Jane and I would do the talking in Italian. Now, I believe we are ready to go the Bohung Institute.”
“Hunter, hold it,” Steve said in confusion. “You’re thinking of meeting Marco Polo? A guy who wrote a book? We could really change history if we influence him, couldn’t we?”
“We must handle any meeting with the Polos carefully, of course,” said Hunter. “Marcia, do you feel the danger of affecting Polo’s book would be prohibitive?”
“No,” Marcia said thoughtfully. “As long as we’re careful, as you say. Frankly, he said just before he died that he had not told half the wonders that he had seen. For instance, he never mentioned the Great Wall, even though he lived close to it in Khanbaliq for many years. He probably saw the western end when he arrived from Europe and again when he went home. He never wrote about tea, though it had been a common drink in China for centuries.”
“Good,” said Hunter. “If we meet the Polos, we will simply exercise extreme care not to be worthy of appearing in his book.”
“One more question, please,” said Marcia. “Maybe the rest of you know this, but I don’t. Why are we leaving at night, after a day’s activity? Shouldn’t we leave in the morning, when we’re fresh?”
“We must arrive in the evening, when dusk will mask our sudden, unexplainable arrival from any potential witnesses,” said Hunter. “We will therefore leave this evening, so that your schedules of sleeping and waking will match those of the society in which we will be a part.”
“Where will we land?” Steve asked. “Out in the middle of nowhere again, I suppose.”
“Yes-to avoid being seen by local humans,” said Hunter. “Since I am unfamiliar with the exact details of the city, we must arrive in the countryside. This will minimize the chance of appearing right in front of people; if we do land near peasants, I hope the near-darkness will also disguise us. Our first task will be to find a safe place to sleep. In the morning, we will begin our search for MC 5.”