by Isaac Asimov
“No.” Hunter took Steve’s wrist in his other hand and stopped him. “Listen carefully. I have identified a new problem. I have been running my self-diagnostic programs and I cannot be returned to our time in this condition.”
“Why not? You’re a robot — it’s not like moving an injured human. Even if we do a little more damage moving you, we can still get you repaired.”
“That is not what I mean,” said Hunter. “The trauma damage has triggered a more critical problem, according to the monitors that study my functions on a microscopic level. My system will explode with nuclear force if I return to our own time this way.”
“What? That doesn’t make any sense.” Realizing that they could not leave before talking this out, Steve drew his hand away and glanced around.
No one remained in sight. MC 6 stood motionless over Hunter and Steve. For the moment, they could talk safely.
“I don’t get it, Hunter,” said Steve. “You said the instability in the atoms of the component robots resulted from the particle shower in the time travel sphere, which combined the miniaturization process and travel through time. You haven’t been miniaturized at all. So what’s going on?”
“I have limited information with which to work,” said Hunter. “However, I surmise that some of my atoms have been made similarly unstable by the repeated trips I have taken. Trauma from the spear has destroyed the shielding on a specific location in my shoulder. The unstable atoms in that area are the ones that will explode in the particle shower if I return.”
“You mean this is the opposite problem of the component robots,” said Steve. “They can go home safely in the particle shower, but they’ll explode if they go through time normally to reach the moment they left. You’re saying you can’t use the belt unit, but you could wait around for hundreds of years safely?”
“That is correct.”
“Well … can’t we shield it again? Maybe MC 6 can handle the precision required.”
“That should be possible,” said Hunter. “I can direct him continuously by radio as he works.”
“So that’s what you want to do?” Steve asked quietly. He did not want to lose Hunter, but he understood that arguing with him about the Laws of Robotics was a waste of time.
“Not yet. I want to hear Jane’s expertise as a roboticist. As I said, I am working with limited information. I may be wrong. If so, then my parts might’ explode with nuclear force when they reach the time I left on our current mission, as the component robots have.”
“Maybe MC 6 can understand the damage.”
“Telling him is important in any case; even Jane would only understand the principles, not retain all the precise numbers. If I sustain further damage or energy loss, this information should be available elsewhere.”
Steve turned to MC 6. “Listen to everything he says and remember it.”
“Acknowledged,” said MC 6.
“I am transferring the data by radio link rather than speech,” said Hunter. “It will be much faster. In fact, we are finished.”
“Look, Hunter, can you get up and move? The only visible damage is in your shoulder. Do your legs work?”
“Technically, yes. Most of my body remains mechanically sound. However, a number of electrical circuits have been broken, some of which normally access my energy storage. I am able to reroute only minimal energy. While I might be able to walk upright for a short distance, the danger of falling and causing greater trauma is high.”
“You shouldn’t move.”
“Not if I can avoid it.”
“I see. MC 6, I want to talk about you,” said Steve. “Shut down your hearing and vision. I’ll have Hunter radio you to turn them on again; when he conveys my message, it will also have Second Law force.”
“Acknowledged,” said MC 6.
“Can we really trust MC 6 to make your repairs?” Steve asked. “What if he makes some interpretation of the First Law on his own without telling us and sabotages you? Then we’ll all be stuck here.”
“That is the clinching argument we need that he must cooperate,” said Hunter. “The First Law will neither allow him to change history nor to harm you, Wayne, and Jane by stranding you. He must repair my condition so that we can all go back.”
“All right. We have to make sure you and MC 6 are safe, then. And I still have to get Jane away from Wayne somehow.”
“We must also return for Harriet,” said Hunter. “First, however, I must warn you that I hear Wayne’s footsteps approaching to your left, in the trees about nine meters away. From my position here on the ground, I cannot see him.”
21
STEVE TURNED TO look. Wayne stopped warily in the trees, watching him. He had picked up a Saxon sword and shield, probably from a fresh corpse.
“Hunter, shut down your hearing and vision.” Steve forced his voice to remain calm. “Turn them back on when I tap you on the arm three times quickly.”
“I cannot. Danger is present. Under the First Law, I must be able to help.”
“You can’t help, anyway,” said Steve. “Not now. And I have a chance to complete our mission.”
“How?”
“Never mind how. I can do this more efficiently if I don’t have to worry about you interfering. Do it.”
“Is a First Law imperative involved?”
“If I complete our mission, then the First Law danger to the whole line of history to come will be finished. Now shut up and do it.”
Hunter said nothing more.
Steve realized, belatedly, that ordering Hunter to shut up meant that the big robot would not acknowledge whether or not he had agreed to shut down his hearing and vision.
“If you still hear me, say so,” said Steve.
Hunter still said nothing.
Steve looked through the trees at Wayne again. Obviously, Wayne had come prepared to fight if necessary. Steve decided that Wayne must have ordered Ishihara to take Jane far enough away so that the robot would not realize Wayne intended to risk getting into a fight. Wayne had seen Hunter go down with a spear in his shoulder and Wayne could control MC 6 under the Second Law. That meant he had come to fight Steve.
Wayne walked toward him slowly, still watching the robots.
Slowly, Steve drew his sword from his belt and shifted his shield on his arm to make it more comfortable. He doubted that Wayne would be any match for him in hand-to-hand combat; after all, Wayne worked in offices and laboratories as a roboticist. Steve was younger, in better shape, and had practiced with his sword and shield in Lucius’s troop.
Wayne had not taken a helmet. His head remained bare. As he approached, a light breeze tossed his hair slightly.
Seeing that Wayne had neither a helmet nor any armor, Steve realized his own disadvantage. He really did not want to hurt Wayne. That did not mean he could expect the same consideration in return.
Wayne stopped about three meters away. He watched Steve silently for a moment. Then he glanced again at the motionless robots.
“Hi, Wayne.” Steve grinned and spoke casually, as though nothing unusual was about to happen.
Wayne scowled. “Are they really going to let us fight? I see Hunter can’t help you, but what about MC 6?”
“I told MC 6 to shut down his sight and hearing so I could talk to Hunter. And that’s the way we want it. If he interfered with us, he might also get away again. But we don’t have to fight. Let’s talk about this for a change.”
“Forget it. Step aside and let me have my own creation.”
“You know I can’t. Why don’t you and Jane help me take care of Hunter? I don’t think anybody wants to ruin your career. Hunter can help you work out the situation with the Oversight Committee,”
Wayne’s face contorted with anger. He raised his sword and ran at Steve.
Startled by the suddenness of Wayne’s mood shift, Steve raised his shield just in time to take a hard sword blow. The power of it hurt his arm and he felt a surge of excitement. In return, he swung his own sword i
n a high, downward slash.
Wayne blocked the swing with his own shield, shifting to Steve’s left. They exchanged rhythmic blows, each one catching the other’s sword on his shield. Wayne kept moving to one side, toward MC 6, and Steve shuffled laterally to stay between them.
Steve realized that this could go on for a long time. Wayne would eventually tire before he would, but Steve did not want to wait. If anyone else came back this way, most likely Artorius’s riders, the entire situation would become harder to handle.
Wayne swung his sword another time, the same way he had done before. Steve caught it on his shield again. Instead of just swinging his own, however, Steve planted his feet and took another step forward, shoving his shield outward like a weapon itself.
Caught by surprise, Wayne stumbled backward. His arms flailed out to each side as he tried to get his balance. He was momentarily exposed.
Steve raised his sword high, but brought it down with the butt end of the handle first. He hit Wayne on the top of the head with the pommel, as hard as he dared. Then he dropped his sword and pushed Wayne with his free hand.
Wayne fell onto his back. Steve wrenched the sword out of his hand and tossed it away. Then he made a fist, ready to punch Wayne if necessary.
When Steve saw Wayne lying limply on the grass, he relaxed slightly.
“How’s your head?” Steve asked cautiously.
“Leave me alone,” Wayne muttered, wincing. He made no move to get up.
Steve decided Wayne was not seriously injured. He stood up and dropped his shield on the ground.
Then he picked up both swords and jogged back to Hunter so that Wayne could not reach the swords by a sudden move. Steve dropped the swords on the ground and tapped Hunter on the arm three times.
“I have turned on my hearing and vision again,” said Hunter. “What has transpired?”
“Good news,” said Steve. “Wayne is lying nearby with a minor headache. MC 6 remains in custody; instruct him to turn on his senses again.”
“I am fully functional again,” MC 6 said almost immediately.
“Listen carefully,” said Steve. “Hunter, explain to him all the First Law imperatives involved in the danger of changing history. Do it fast, by radio again.”
“Done,” said Hunter.
“You agree this is a serious First Law problem?” Steve asked MC 6.
“Yes.”
“Then I instruct you, with that First Law imperative in mind, to help me gather everyone who has come to this time from our own and take them back safely. Acknowledge.”
“Acknowledged.”
“Go see if Wayne Nystrom, over there, needs any first aid. Don’t let him get away, though. Keep him here with us.”
MC 6 jogged over to Wayne.
“Hunter, call Ishihara. If he answers, tell him that Wayne has been slightly hurt and that he and MC 6 are both in our custody. Wayne’s mission has ended, so Ishihara’s First Law imperative now is to bring Jane back to us.”
“Ishihara has responded. I am conveying your mission as I speak to you. He agrees, pending his judgment that we have told the truth.”
“What’s he going to do?”
“He will approach cautiously. Once he sees that we have Wayne and MC 6 with us, he will be convinced.”
Steve could not hear any more sounds from the battle. “Hunter, can you hear the battle? Is it still going on?”
“I hear distant hoofbeats, most of them still scattering away from us. Most of the riders are pursuing their fleeing enemy. A few have regrouped. Artorius clearly won another victory. No one is near except for the footsteps of Ishihara and the hoofbeats of the mule, about ten meters behind you.”
Steve turned and saw Jane riding the mule next to Ishihara. Deciding that Hunter was safe for the moment, Steve ran toward Jane. She slipped off the mule, landing on her feet in front of him. He started to throw his arms around her, but was not sure he should, so he stopped.
“So, you’re safe,” he said, feeling awkward.
“Yeah.” She laughed, looking at him expectantly for a moment. Then she looked past him to Hunter.
“Ishihara relayed Hunter’s report of his condition.”
“MC 6 says he can shield the problem area, whatever it is.” Steve glanced over her shoulder at Ishihara.
“Are you sure of Ishihara’s loyalty now?”
“Yes. I grilled him on the subject when he told me that you and Hunter had Wayne and MC 6.”
“Okay. You’d know better than I would.”
“I will help everyone return safely,” said Ishihara. “However, I hope that Wayne’s career is not destroyed. That would harm him.”
“No one has ever wanted that to happen,” said Jane.
Wayne pushed himself up to a sitting position, rubbing the top of his head where Steve had hit him. MC
6 stood over him. They both looked at Ishihara and Jane.
“Ishihara, MC 6 must make a repair for Hunter,” said Jane. “If we can trust you not to accept any arguments from Wayne about the First Law, then I can allow you to watch over him.”
“Aw, shut up,” Wayne muttered. “I’ve had enough. You got MC 6 and all the rest of them. I just want to go home.”
“Well, Ishihara?” Jane demanded. “Acknowledge that our First Law arguments supersede anything Wayne has ever told you.”
“Under the new conditions that pertain, I acknowledge this.”
“Good.”
“You stay with Wayne, then,” said Steve. “MC 6, tome over to Hunter and make the repairs in communication with him.”
“Yes,” said MC 6, joining them.
“Are you going to need tools of any kind?” Jane asked.
“I will have to fashion some sort of precision tools,” said MC 6. He knelt by Hunter and moved aside a fold of Hunter’s tunic to examine the damage to Hunter’s shoulder. “I can use some material from Hunter’s body that has already been rendered waste matter by the damage.”
“Go ahead,” said Jane. “On your own judgment.”
“We will confer by radio link,” said Hunter.
Steve sat down next to MC 6, giving him plenty of room to move his arms as necessary. Jane sat down on his other side. They watched in silence as MC 6 carefully drew out a very thin piece of wire from Hunter’s wound and shaped it with his fingers. Then he picked up a slightly heavier piece of wire and shaped it, also. After that, he used them to manipulate tiny components inside Hunter’s shoulder; Steve did not know what any of them were.
Finally MC 6 drew out the small wires and neatly rolled them. After that, he fastened them inside the wound. Then he moved the tunic back into place.
“The shielding is complete,” said Hunter. “However, he found that many of my broken circuits cannot be quickly repaired, so my energy level remains minimal. I am still unable to move around without danger to myself.”
“But we can all go home now, right?” Steve asked. “We’ll get MC 6 back, have you fixed, then return for Harriet.”
“Please go directly to Harriet with Ishihara,” said Hunter. “I can hear the baggage train moving up on the road; that means tonight’s camp will be made forward of this position. Jane and MC 6 can tend to Wayne and me safely in this location for a short time. I prefer to complete this mission all at once. You can use the belt unit that Ishihara carries. I will have him set it for Cadbury.”
“All right. You’re the boss.”
“I am communicating with Ishihara now as you and I speak. However, I must emphasize to you that Harriet must come back. Her continuing presence endangers the future. I have explained by radio to Ishihara that he must bring her by force if necessary.”
“I’ll go baby-sit Wayne and send Ishihara over here,” said Jane. She got up and walked back to them.
“All right.” Steve accepted the belt unit from him. “We aren’t going to see Bedwyr again, are we?”
“No. He will assume that we were killed in battle.”
“Too bad. I like him.
”
“The mule cannot be taken back to Emrys either,” said Ishihara, as he walked up.
“Who?” Steve asked.
“The owner of the mule, who loaned it to us. However, this may equalize the value of labor I contributed to him. Loss of the mule would in that case mean that our presence made less of a total change in his life.”
“Please get Harriet,” said Hunter. “Ishihara, when she has joined you, return here only a moment after you left. We will be safe here that long.”
“You do it.” Steve moved a few steps away from Hunter and handed Ishihara the belt unit.
“Ready?”
“Yes.”
Harriet followed Gwenhyvaer through the narrow streets of the village again, looking at the same wares they had seen before. As Gwenhyvaer fingered the material of a woolen scarf, Harriet turned and gazed out the open gate of the village, across the front slope of the tor toward the rolling hills in the distance.
She wondered how the campaign was going, though of course she knew who would win in the end.
When she got a moment alone, she would call Hunter and see if her lapel pin could still reach him.
The lower level of material comfort here did not bother Harriet. She enjoyed the simple life and the lack of stress. However, in only a few days, the company she kept had begun to bore her.
As a historian, Harriet had pursued her professional research and taught a variety of classes. She had debated historical theories about Arthur both in serious professional forums and also casually with friends in other fields. Now she had found that none of the women around her had the slightest interest in the evolution of societies and values, let alone a desire to hear Harriet discuss them.
Gwenhyvaer talked constantly of her desire to marry Artorius, to assure herself of what status and privilege she could find. She and the other women here had a tremendous stake in Artorius’s military successes, but otherwise they cared nothing for the details. Today, Gwenhyvaer, who in legend would become the beautiful but tragically flawed queen of Camelot, had screamed at a young servant girl for spilling mutton stew on her dress. Now her biggest concern in life was whether to buy another now or to wait until Artorius came home victorious from his campaign.
