The area through which the city was currently passing was high and barren, and the soil was poor. Settlements were few, and those that they approached were almost invariably clustered around one or another collection of ramshackle buildings. The squalor was terrible, and disease was widespread. There appeared to be no kind of central administration, for each of the settlements had its own rituals of organization. Sometimes they were greeted with hostility, and at other times the people hardly seemed to care.
The Barter work was one largely of judgement: assessing the particular outlook and needs of a chosen community, and negotiating along those lines. In most cases, negotiations were fruitless; the one thing all settlements seemed to share was an abiding lethargy. When Collings could initiate any kind of interest, the needs became immediately apparent. By and large, the city could fulfil them. With its high degree of organization, and the technology available to it, the city had over the miles accumulated a large stockpile of foodstuffs, medicines, and chemicals, and it had also learnt by experience which of these were most required. So with offers of antibiotics, seeds, fertilizers, water-purifiers — even, in some cases, offers of assistance to repair existing implements — the Barter guildsmen could lay the groundwork for their own demands.
Collings had tried to teach Helward to speak Spanish, but he had little ability with languages. He picked up a handful of phrases, but contributed very little to the often lengthy periods of negotiation.
Terms had been agreed with the settlement they had just left. Twenty men could be raised to work on the city tracks, and another ten were promised from a smaller settlement some distance away. In addition, five women had either volunteered or been coerced — Helward was uncertain which, and he did not question Collings — to move into the city. He and Collings were now returning to the city to obtain the promised supplies, and prepare the various guilds for the new influx of temporary population. Collings had decided that all of the people should be medically examined, and this would place an additional burden on the medical administrators.
Helward liked working to the north of the city. This would soon be his territory, for it was up here, beyond the optimum, that the Future guild did its work. He often saw Future guildsmen riding north, away into the distant territory where one day the city would have to travel. Once or twice he had seen his father, and they had spoken briefly. Helward had hoped that with his experience as an apprentice, the unease which dogged their relationship would vanish, but his father was apparently as uncomfortable as ever in his company. Helward suspected that there was no deep and subtle reason for this, because Collings had once been talking about the Future guild, and had mentioned his father. “A difficult man to talk to,” Collings had said. “Pleasant when you get to know him, but he keeps to himself.”
After half an hour Helward remounted the horse, and walked her back along their previous path. Some time later he came across Collings, who was resting in the shade of a large boulder. Helward joined him, and they shared some of the food. As a gesture of goodwill, the leader of the settlement had given them a large slab of fresh cheese, and they ate some of it, relishing the break from their more normal diet of processed, synthesized food.
“If they eat this,” Helward said, “I can’t see that they would have much use for our slop.”
“Don’t think they eat this all the time. This was the only one they had. It was probably stolen from somewhere else. I saw no cattle.”
“So why did they give it to us?”
“They need us.”
Some time later they continued on their way towards the city. Both men walked, leading the horse. Helward was both looking forward to returning to the city, and regretting that this period of his apprenticeship had ended. Realizing that this was probably the last time he would have with Collings, he felt the stirrings of an old and long buried intention to talk to him about something that still caused him to fret from time to time, and of all the men he had met outside the city Collings was the only one with whom he could discuss it. Even so, he turned over the problem in his mind for some time before finally deciding to raise it.
“You’re unnaturally quiet,” said Collings suddenly.
“I know… sorry. I’m thinking about becoming a guildsman. I’m not sure I’m ready.”
“Why?”
“It’s not easy to say. It’s a vague doubt.”
“Do you want to talk about it?”
“Yes. That is… can I?”
“I don’t see why not.”
“Well… some of the guildsmen won’t,” said Helward. “I was very confused when I first came outside the city, and I learnt then not to ask too many questions.”
“It depends what the questions are,” said Collings.
Helward decided to abandon trying to justify himself.
“It’s two things,” he said. “The optimum and the oath. I’m not sure about either of them.”
“That’s not surprising. I’ve worked with dozens of apprentices over the miles, and they all worry about those.”
“Can you tell me what I want to know?”
Collings shook his head. “Not about the optimum. That’s for you to discover for yourself.”
“But all I know about it is that it moves northwards. Is it an arbitrary thing?”
“It’s not arbitrary… but I can’t talk about it. I promise you that you’ll find out what you want to know very soon. But what’s the problem with the oath?”
Helward was silent for a moment.
Then he said: “If you knew I’d broken it — if you knew at this moment — you’d kill me. Is that right?”
“In theory, yes.”
“And in practice?”
“I’d worry about it for days, then probably talk to one of the other guildsmen and see what he advised. But you haven’t broken it, have you?”
“I’m not sure.”
“You’d better tell me about it.”
“All right.”
Helward started to talk about the questions Victoria had asked him at the very beginning, and tried to confine his account to vague generalities. As Collings stayed silent, Helward began to go into more and more detail. Soon he found himself recounting, almost word for word, everything he had told her.
When he had finished, Collings said: “I don’t think you’ve anything to worry about”
Helward experienced a feeling of relief, but the nagging problem could not be dispelled as quickly as that.
“Why not?”
“No harm has come of your saying anything to your wife.”
The city had come into view as they walked, and they could see the customary signs of activity around the tracks.
“But it can’t be as simple as that,” said Helward. “The oath is very firm in the way it is worded, and the penalty is hardly a light one.”
“True… but the guildsmen who are alive today inherited it. The oath was passed to us, and we pass it on. So will you in your turn. This isn’t to say the guilds agree with it, but no one has yet come up with an alternative.”
“So the guilds would like to dispense with it if possible?” said Helward.
Collings grinned at him. “That’s not what I said. The history of the city goes back a long way. The founder was a man named Francis Destaine, and it is generally believed that he introduced the oath. From what we can understand of the records of the time such a regimen of secrecy was probably desirable. But today… well, things are a little more lax.”