Wayne lay huddled on the slope, excited and also scared. He and Ishihara had followed Julius, MC 3, and their war party through the forest to the ambush site. As soon as Julius had selected a spot for the night, far down the slope toward the road, his party had doused their torches.

“Let’s get him now,” said Wayne.

“The risk to you is too great,” said Ishihara. “We are surrounded by thousands of German warriors at this moment. Our best chance to apprehend MC 3 is during the confusion of battle. He will be distracted by the many First Law imperatives around him.”

“So will you,” said Wayne.

“The Germans will be even more distracted once the action begins,” said Ishihara. “Neither they nor MC 3 will anticipate our approach from behind. That will give us the advantage we have lacked up to now.”

“All right, all right. I don’t want to get hurt, myself. In fact, I instruct you once again to focus on the necessity of getting me out of here safely once we grab MC 3. We don’t have to go anywhere with him; I’ll trigger my remote control right away and we’ll take him right back to our own time, straight from the battlefield.”

“I shall maintain this focus to the best of my ability,” said Ishihara.

Steve used the leather bag as a pillow and dozed on the hard ground, waking frequently. His fur cloak and tunic kept him warm enough, but he could not get comfortable. The first light of morning woke him even before Hunter shook Jane and Gene gently.

Stiff from the poor rest, Steve pushed himself up and shivered when the cold wind whipped under his cloak. The early sunlight revealed heavy, dark clouds moving quickly. He could smell rain.

The road along the valley floor was close, about twenty-five meters down the slope. Steve looked around and saw thousands of German warriors all over the slope, among the boulders and trees, and even more across the narrow valley on the opposite slope. Others would be hidden from view. Of course, they were just waking; when the first sign of the Roman advance arrived, they would all slip out of sight.

To his relief, he did not see anyone from Vicinius’s village nearby. Since everyone in Hunter’s team was wearing German cloaks, they would not stand out to any of the other Germans. Steve relaxed a little.

Hunter was looking around the slopes, as well. “Gene, how does the battle proceed?”

“Uh-didn’t we talk about this, already? It’s a total rout for the Germans, who have brought a bunch of different tribes here-not just the Cherusci. The Romans were slaughtered and driven back to the Rhine forever. In fact, the Roman authorities thought the Germans might even invade Gaul.”

“I have that in my data,” Hunter said patiently. “What I mean is, what is the sequence of detailed events?”

“Oh-sorry.” Gene shook his head. “It’s hardly a battle at all. The Romans are trapped down on the road below us. Just as the attack begins, a huge thunderstorm hits.”

“It’s building already,” said Jane, holding her cloak tight around her as she looked up at the sky.

“The well-disciplined Romans keep their position today and make camp for the night, totally surrounded. Then at sunrise tomorrow-”

“I understand,” said Hunter. “That is what I need for now.”

“What do you want us to do?” Jane asked.

“Steve, do you still have some cold food in your bag?” Hunter asked.

“Yeah.”

“Distribute it. I want all of you to be as well fed as possible. You must hide and remain together when the action begins.”

Steve pulled open the bag and took out some of the roasted meat that was still wrapped in leaves. In the cold weather, it was still good. He passed some to Jane and Gene. “We don’t have any water. When it starts to rain, open your mouth and look up.”

“I am going to walk a little bit,” said Hunter. “I shall find MC 3 if I can.” He turned and picked his way across the slope.

“It’s better than nothing,” said Steve, biting into a chunk of roasted wild boar.

Hunter was very careful to keep his head down and his cloak wrapped around him as he moved among the German warriors. Even among the Cherusci tribe alone, there were so many different villages that the warriors did not all know each other. With other tribes present as well, all he needed to do to avoid trouble was avoid the warriors from the village of Vicinius and Odover, who might still accuse him of being a Roman spy.

He stopped frequently and used his vision on maximum magnification to study both the slope on which he stood and the one across the valley. Simultaneously, he turned up his hearing in the hope of hearing Julius’s voice, but the sheer number of Germans moving and talking quietly around him made the search difficult. They were preparing spears and swords if they had them. Some were loosening boulders they planned to roll down the slopes and were directing their comrades to move out of the way.

Hunter moved quietly and patiently, not attracting any particular attention. At one point, seeing other Germans hurrying across the valley from one slope to another, he crossed to the other side. He did not find Julius or MC 3 there either, however.

Almost two hours after first light, Hunter saw that the Germans around him were looking up the road in the direction from which the Romans would come. He turned and saw other warriors waving their arms to their comrades farther away from the entrance to the valley. This silent signal sent all the Germans scurrying to hiding places.

Hunter was a long way from where he had left his team. Immediately, he headed back toward them. Before he reached them, he saw the first advance patrol of Roman cavalry riding up the road below. He ducked down out of sight and continued to move across the slope, but his progress was much slower now. After all the care he had previously taken not to change history, he certainly did not want to expose the ambush prematurely by letting himself be seen.

The Germans were barbarians by Roman standards, but they were sufficiently disciplined to allow the advance patrol to ride through the valley without revealing themselves. Soon the head of the column appeared, led by Governor Varus. Hunter could see Marcus riding at his side. Prince Arminius, who must certainly have been hidden somewhere on the slopes, still did not give the signal to attack.

Hunter had almost reached his team by the time the column had marched well into the valley. He had to move by wriggling prone on the rough ground to avoid being seen. The advance patrol was out of sight around a far curve and Governor Varus had taken the head of the column almost to the same curve. The wagons in the baggage train at the end of the column entered the valley last of all.

Suddenly Hunter heard a distant shout from high over his head, up the slope to his rear. It was the voice of Prince Arminius, but it was instantly drowned out by a huge roar of angry voices from both slopes, echoing up and down the valley. On all sides, the German warriors rose up, some rolling rocks and boulders down the slope, others flinging their spears. Archers shot their arrows and still more charged down on the marching column.

In response, Roman officers began to shout and signal to their troops. Roman buglers blew commands. The legionaries swung up their shields and turned outward to face their attackers on each side of the road.

Hunter felt a sudden rush of imperative from the First Law, telling him to stop these people if he could. He forced himself to focus on the welfare of the future, which meant finding MC 3. Now that all the German warriors were exposed to view, he stood up and quickly scanned the slopes and the valley again.

The clouds darkened over the valley. Lightning flashed and thunder rolled through the mountains, making the ground vibrate. A slashing, cold rain began to fall. Hunter felt the wind lift his cloak to flutter out behind him, but ignored it. Another cheer rose up from the Germans, who seemed to take the storm as a good omen for them.

Hunter’s new scan of the slopes seemed to take a long time because of the tension and danger to the humans all around him. However, he finally spotted Julius leading a band of screaming warriors down the slope not too far away, with MC 3 running right behind him. The little component robot was easily the most agile of the group. Actually, less than a minute had passed since Hunter had begun his scan.

Hunter changed direction in order to angle down the mountainside after MC 3. He also looked sideways for his team members. The place where he had left them was not far away, but he could not see them; he expected they had ducked down low to keep themselves safe. Certainly in the shouts and clashing of weapons all around him, he could not possibly hear them.

Many of the boulders had rolled down into the Roman column, smashing into the legionaries who, trapped against their comrades, could not dodge out of the way. Most of the Romans had now formed a shield wall, and were clashing hand to hand with the first wave of German attackers. More warriors rushed down the slope past Hunter in the pouring rain.

Hunter paused to let some Germans dart past him, and looked down to find his footing. Rivulets of water were running down the slope already. The rain had already saturated the rocky ground, which had been damp before the storm.

When Hunter looked up again to find MC 3, he saw that Julius had reached the crowd of passing Germans pressing forward against the Romans. He was not able to reach his enemies yet because of the crowd. MC 3 was right behind him.

Suddenly Hunter recognized Wayne Nystrom and Ishihara pressing forward through the crowd of Germans coming up behind MC 3. He did not understand Ishihara’s presence, but he would worry about why he was here later. Hunter knew he could no longer afford to work his way gradually toward MC 3. He leaped forward and ran down the slope, with the Germans around him on the muddy soil and slippery rocks.

“Ishihara, this is Hunter,” he radioed. “You must stop. You are interfering with the future of human history.”

“Unaccepted,” Ishihara responded. “I, too, shall prevent MC 3 from altering the outcome of this battle.”

“Aiding Wayne Nystrom may cause harm to people in our own time,” Hunter added anxiously, as he collided shoulder to shoulder with a shouting German warrior.

“Unproved. As such, I must obey Wayne’s instructions under the Second Law.” Ishihara said nothing else, as he continued to push and shove his way forward.

Through the cold, wind-driven rain, Hunter saw that Wayne was now hanging back, letting Ishihara move up toward MC 3. Ishihara was fighting his way through the press of Germans, all of whom were anxious to reach their foes. Hunter lengthened his stride, using his precise coordination to maintain his balance on the uneven, slippery slope.