"That must've been one gantua of a disaster."

"I think it was supposed to be either a chain of supernovas or the final collapse of the galaxy's central black hole."

"Uh-huh. Almost simpler to believe God set it up this way deliberately."

"Certainly makes a colonist's life easier to be able to digest the local flora and fauna," Jonny agreed.

"Though the vice versa is occasionally a problem."

Jonny tensed; but Chrys's tone hadn't been one of accusation. "I appreciate your letting me go with the others today," he said, as long as they were now on the topic. "I know I promised to stay out of things on this trip-"

"You could hardly hold out when you were needed," she put in. "And it wasn't like you were in serious danger out there. Were you?"

"No, not with the aircar and Menssana as backup. Still, I'll try to behave myself the rest of the trip."

She chuckled and gave his hand a squeeze. "It's all right, Jonny. Really. I wouldn't want you to just sit on your hands when you're needed. Just be careful."

"Always," he assured her, wondering at her abrupt attitude change. This was the old Chrys back again, the one who'd been so supportive of his service when they were first married. What had happened to change her? Was she simply reacting to the new environment, slipping into old thought patterns with the reminder of their past struggles on Aventine?

He didn't know. But he liked the change... and he had the rest of the trip to figure out how to keep her this way when they returned home.

Chapter 10

The clearance to remove their filter helmets had come from the Dewdrop just before the evening's medical exam, and in the hours between then and bedtime

Joshua thought his nose had become thoroughly accustomed to the exotic scents of

Qasama's air. But the group hadn't taken more than three steps outside their guest house in the morning before Joshua realized that belief had been a little premature.

The new odor seemed to be a mixture of baking aromas with some not-quite-aromatic smoke with something he couldn't begin to identify.

He apparently wasn't the only one. "What is that I smell?" Cerenkov asked Moff, sniffing the breeze.

Moff inhaled thoughtfully. "I smell the bakery one street down, the boron refinery, and the exhaust of vehicles. Nothing more."

"A boron refinery?" Rynstadt spoke up. "In the middle of the city?"

"Yes. Why not?" Moff asked.

"Well..." Rynstadt floundered a bit. "I would assume it would be safer to put industries like that away from populated centers. In case of an accident or something."

Moff shook his head. "We have no accidents of any consequence. And the equipment itself is safest right where it is."

"Interesting," Cerenkov murmured. "Could we see this refinery?"

Moff hesitated a second, then nodded. "I suppose that would be permissible. This way."

Bypassing the car waiting for them at the curb, he set off, the four Aventinians and five other Qasamans following. The refinery turned out to be less than a block away, located in an unremarkable building midway between two of Sollas's extra-wide avenues.

Joshua had never seen this kind of light industrial plant before, and the masses of tanks, pipes, and bustling Qasamans gave him more of a feeling of confusion than of productivity. But Rynstadt-and to a lesser extent York-seemed fascinated by the place. "Very nice setup," Rynstadt commented, gazing around the main room. "I've never heard of a boron extraction method using cold bubbled gas.

What gas is that, if I may ask?"

"I'm really not sure," Moff said. "Some sort of catalyst, I expect. You are an expert in this sort of chemistry?"

"No, not really," Rynstadt shook his head. "I dabble in a lot of fields-my job as an educator requires me to know bits and pieces of almost every subject."

"A general scientific expert, then. I see."

There was something about the way Moff said that that Joshua didn't care for, as if Rynstadt's supposed expertise had added a point against the mission's peaceful image. "Would something tike this method be marketable on Aventine,

Marck, do you think?" he spoke up, hoping Rynstadt would pick up the cue.

He did. "Almost certainly," the other nodded at once. "Boron plays a major part in at least a dozen different industries, and while our methods aren't expensive something cheaper would always be welcome. Perhaps we can discuss this in more detail later, Moff, either with Mayor Kimmeron or someone in planetary authority."

"I'll pass on your request," Moff said. His tone was neutral, but to Joshua's eye he seemed to relax just a bit. Like tiptoeing through a mine field with these people, he thought.

"Well, I think we might as well move on, then," Cerenkov said briskly. "I'd still like to see the art gallery you mentioned yesterday, and perhaps one of your marketplaces."

"Of course," Moff agreed. "Back to the car, then, and we'll be off."

"Well?" Telek asked.

Christopher straightened up from his terminal. "I don't find any reference to this kind of boron refinement method," he said. "Again, these records are by no means complete-"

"Sure, sure. So have they got a new technique or were they lying about what that plant was doing?"

The intercom beeped and Pyre leaned toward it, tuning out the conversation beside him. "Yes?"

It was Captain F'ahl. "Just come up with a correlation that you people might like to know about," he said. "Those extra-wide streets in Sollas and the other cities? Well, it turns out that in each instance they run exactly parallel to

Qasama's geomagnetic field."

The intricacies of boron refinement were abruptly forgotten. "Say again?"

Christopher asked, turning toward the intercom.

F'ahl repeated his statement. "Any reason you can think of for that, Captain?"

Telek asked.

"Nothing that makes sense," F'ahl replied. "You don't have to skew your whole city to use the field for navigation, and the field strength is far too weak to produce any effect on power lines or the like."

"Unless it periodically surges," Christopher mused. "No, even then the design doesn't make any sense."

"Maybe it has to do with their long-range communication system," Telek suggested. "Sending modulations along the lines of force or something."

From a corner of the lounge Nnamdi looked up in irritation. "I wish you'd all get off this idea that the Qasamans have to have broadcast communications," he growled. "We've already seen that Sollas is wired for both power and data transmission-that's really all they need."

"With nothing between the cities?-not to mention all those little villages out there?" Telek retorted. "Come on, Hersh-the isolated city-state concept may appeal to your sense of the exotic, but as a practicing politician I tell you it isn't stable. These people have calculators or even computers, as well as cars, machined weapons, and presumably something to use the runway we're sitting on.

They cannot simply have forgotten the basics of electromagnetic waves or unified government."

"Oh? Then how do you explain the village walls?"

"How do you explain the cities' lack of them?" Telek shook her head irritably.

"We can't assume the villages are primitive and fight among themselves and at the same time say the cities are advanced and don't."

"We can if there's no communication between city and village," Nnamdi said doggedly. "Or if the villagers are a different species altogether. I notice neither Moff nor Kimmeron has mentioned the villages at all."

Pyre caught Telek's eye. "It might be good to clear up that point."

She sighed. "Oh, all right." Picking up the translator-link mike, she dictated a short message to the contact team. Pyre switched his attention back to the displays and waited for Cerenkov to raise the subject with Moff.