He wondered if Frigate was also an expert hypnotizer. The fellow had never given any indication that he was. However, he had refused to let Burton try mesmerism on him. His plea had been that he could not endure the thought of losing his self-control.

Kazz remembered that, during the course of the session, Monat had remarked to Frigate about the Neanderthal's ability to see the symbols.

" ' We never knew about that. We'll have to tell HQ as soon as we get a chance.'"

So, Burton thought, Monat and Frigate were in communication from time to time with the Ethicals. How did they manage that? Were prearranged landings of the flying machines, which Burton had once glimpsed, one method of communicating? Those machines which flickered into and out of visibility as they flew along?

Those two must have been watching him closely. That was one of the reasons the Mysterious Stranger had visited him at night during a storm. The Ethical must have known that Monat and Frigate were in Burton's party. But he had never mentioned them, had not put him on his guard.

Perhaps he had meant to do so, but he had been hurried. He'd said that the Ethicals were coming soon in their flying machines. And he had left abruptly. Even so, he surely would have mentioned so grave a matter. A few words would have warned him. Why had he not done so? Was it possible that he did not know that Monat and Frigate were with him? And Ruach, too. He must not forget Ruach.

Why had three agents been assigned to him? Wouldn't one have been enough? Also, why was one so conspicuous as the Arcturan given the job?

Whatever the reasons for this, the matter of the lack of signs on the heads of the three agents was more pressing. Evidently, Ethi­cals, first-order or second-order, did not have such marks. Now that they were aware that Neanderthals could observe this, they had made sure that Kazz would not say anything about it.

Moreover, Monat had then told Kazz that from that moment on he would see the marks on the foreheads of himself and his two colleagues.

Why had he not then installed a command that Kazz would see these signs on everybody who did not have them?

Perhaps he thought that it would not be necessary. The chances of running across other Neanderthals, never a numerous people, were slight. Still, it would have eliminated any exposures of agents from then on.

The explanation might be simple. Monat would have had to describe the marks of every agent in the valley. Inasmuch as there might be hundreds, or thousands, for all Burton knew, that would have been impossible.

Monat had not been too wrong in thinking that encounters with Neanderthals would be rare. In fact, Burton had never seen more than a hundred. All of these except Kazz and Besst had been passed by swiftly and at a distance during the day.

Yet, they had come across Besst.

He tried to recollect the exact circumstances under which she had been met. It was three years ago that they had come ashore at evening. This was an area populated largely by fourteenth-century A.D. Chinese and ancient Slavs. Besst was living with a Chinese, but she had made it evident from the first that she wished to go on the boat wifh Kazz. It was dark, so she would not have noticed anything unusual about Frigate and Monat-aside from the latter's being nonhuman, of course.

The two had gotten together and talked until late that night. When her hutmate had ordered her to come with him, she had refused. There was a tense moment when it looked as if the Chinese were going to attack Kazz. Discretion won. He realized that, though he was bigger than the Neanderthal, he was also much weaker. Though very short, Kazz's massive bones and muscles made him stronger than any but the most powerful of modern men. In addition, his brutal face was enough to scare anybody.

The two had gone aboard to spend the night together. Yet they must have gone to sleep before dawn. Could Monat have gotten to her then? Probably. Burton did not know how he had done it. But Besst had never said anything about Frigate's and Monat's marks.

Kazz finished his account of the session. It was short and what Burton had expected.

He sent Kazz after Besst, telling him to be very quiet. In a few minutes he was back with her. Burton told her he would satisfy her curiosity later. For the time being, would she let him hypnotize her ? Sleepily, she agreed, and she sat down on the chair Kazz had occupied.

After telling her he was Monat, he took her back to the mesmeriz­ing by Monat. As he had thought, it had been done after she and Kazz had gone to sleep. Monat had simply described tp her the marks which he had hypnotized her mate into seeing on the three agents' foreheads. Then he had ordered her to see the same marks. The whole process would have been done very quietly and quickly.

Monat and his colleague had been lucky. Before Kazz had en­countered Spruce, he had seen two other people without the marks. However, the first time had been on Resurrection Day. He had called out to the man, asking him why he had no mark. The man had fled, probably not because he understood what Kazz was saying but because he had misunderstood the Neanderthal's intentions.

Later, after meeting Burton, Kazz had tried to tell him what he had seen, but neither could speak the other's language yet. And Kazz had simply forgotten about it in the days following, when they were all busy trying to survive.

The. second person he'd seen lacking a mark was a woman, a Mongolian. This had happened at high noon, and the woman had just come out of The River, where she was bathing. Kazz had tried to talk to her, but her hutmate, who did have a mark on his head, had taken the woman away. Evidently, he was jealous. Once more, Kazz's intentions were misunderstood.

At that time, Burton and the others had been talking to the local headman in the council house. Kazz had stayed behind to watch their boat. After the woman had gone, Kazz was offered some drinks of lichen-alcohol by several people who wanted to talk to him. These had never seen a Neanderthal before, and the liquor was an inducement to get him to talk. Kazz, easily induced and seduced by free booze, was half-drunk by the time his crewmates returned. Burton had reproached him so harshly that Kazz had never again drunk while on guard duty.

He also forgot about the woman.

After bringing Besst out of the trance, Burton sat for a while in thought. Besst and Kazz shifted uneasily and gave each other wondering looks. Finally, he made a decision. There was no longer any use keeping them in the dark. Nor would he exclude Alice from now on. He owed the Stranger nothing, and the fact that he had not reappeared again could mean that he, Burton, had no reason to keep silent. Besides, though he was naturally secretive, he longed now to share his experiences.

Though he gave only a bare outline, he took over an hour. Both Besst and Kazz were amazed, and they had many questions. He held up his hand for silence.

"Later! Later! As of now, we must question them. The Arcturan's a much tougher customer, so we'll tackle Frigate first."

He told them what they must do. Kazz said, "But wouldn't it be best to knock out Monat and tie him up? What if he wakes up while we're getting Frigate?"

"I don't want to make any more noise than we have to. If Loghu and Alice hear us, we'll have a brouhaha."

"A what?"

"An uproar. Let's go."

The three of them made their way through the fog. Burton thought of some more questions he would ask Frigate. For instance, Monat, Frigate, and Ruach must have known that Spruce was an agent. There had been plenty of opportunity for them to talk to him while they had been grail slaves. And Monat had had opportunities after the revolt to hypnotize Kazz so he would see a mark on Spruce. Why had he not done that?