In one of the small villages there was an outdoor market in full swing, and there in the middle of the crowd was Nirgal, chomping an apple and nodding vigorously as someone spoke to him. He saw Maya and Diana get out of the car and rushed over and hugged her, lifting her off the ground. “Maya, what are you doing here?”

“On a tour from Odessa. This is Diana, Paul’s daughter. What are you doing here?”

“Oh, visiting the valley. They’ve got some soil problems I’m trying to help with.”

“Tell me about it.”

Nirgal was an ecological engineer, and seemed to have inherited some of Hiroko’s talent. The valley mesocosm was relatively new, they were still planting seedlings all up and down it, and though the soil had been prepped, nitrogen and potassium deficiencies were causing many plants not to thrive. As they walked around the marketplace Nirgal discussed this, and pointed out local crops and imported goods, describing the economics of the valley. “So they’re not self-sufficient?” Maya asked.

“No no. Not even close. But they do grow a lot of their own food, and then trade other crops, or give them away.”

He was working on eco-economics as well, it seemed. And he already had a lot of friends here; people kept coming up to hug him, and as he had his arm over Maya’s shoulders, she got pulled into these embraces and then introduced to one young native after another, all of them looking delighted to see Nirgal again. He remembered all their names, asked how they were doing, kept up the questions as they continued to circulate through the market, past tables of bread and vegetables, and bags of barley and fertilizer, and baskets of berries and plums, until there was a whole little crowd of them like a mobile party, which finally settled around long pine tables outside a tavern. Nirgal kept Maya at his side throughout the rest of the afternoon, and she watched all the young faces, relaxed and happy, observing how much Nirgal was like John — how people warmed to him, and then were warm to each other — every occasion like a festival, touched by his grace. They poured each other’s drinks, they fed Maya a big meal “all local, all local,” they talked with each other in their quick Martian English, detailing gossip and explaining their dreams. Oh, he was a special boy all right, as fey as Hiroko and yet utterly normal, at one and the same time. Diana for instance was simply latched to his other side, and a lot of the other young women there looked like they wished they were in her place, or Maya’s. Perhaps had been in the past. Well, there were some advantages to being an ancient babushka. She could mother him shamelessly and he only grinned, and nothing they could do. Yes, there was something charismatic about him: lean jaw, mobile humorous mouth, wide-set, brown, slightly Asiatic eyes, thick eyebrows, unruly black hair, long graceful body, though he was not as tall as most of them. Nothing exceptional. It was mostly his manner, friendly and curious and prone to hilarity.

“What about politics?” she asked him late that night, as they walked together from the village down to the stream. “What do you say to them?”

“I use the Dorsa Brevia document. My notion is that we should enact it immediately, in our daily lives. Most of the people in this valley have left the official network, you see, and are living in the alternative economy.”

“I noticed. That’s one of the things that got me up here.”

“Yeah, well, you see what’s happening. The sansei and yonsei like it. They think of it as a homegrown system.”

“The question is, what does UNTA think of it.”

“But what can they do? I don’t think they care, from what I can see.” He was constantly traveling, and had been now for years, and had seen a lot of Mars — much more than Maya had, she realized. “We’re hard to see, and we don’t appear to be challenging them. So they don’t bother with us. They’re not even aware how widespread we are.”

Maya shook her head dubiously. They stood on the bank of the stream, which in this spot was noisily gurgling over shallows, the night-purple surface scarcely reflecting the starlight. “It’s so silty,” Nirgal said.

“What do you call yourselves?” she asked.

“What do you mean?”

“It’s a kind of political party, Nirgal, or a social movement. You must call it something.”

“Oh. Well, some say we’re Booneans, or a kind of Marsfirst wing. I don’t think that’s right. I don’t name it, myself. Maybe Ka. Or Free Mars. We say that, as a kind of greeting. Verb, noun, whatever. Free Mars.”

“Hmm,” Maya said, feeling the chill humid wind on her cheek, Nirgal’s arm around her waist. An alternative economy, functioning without the rule of law, was intriguing but dangerous; it could turn into a black economy run by gangsters, and there was very little that any idealistic village could do about it. So that as a solution to the Transitional Authority it was somewhat illusory, she judged.

But when she expressed these reservations to Nirgal, he agreed. “I don’t think of this as the final step. But I think it helps. It’s what we can do now. And then, when the time comes …”

Maya nodded in the darkness. It was another Creche Crescent, she thought suddenly. They walked back up to the village together, where the party was still going on. There five young women at least began jockeying to be the last one at Nirgal’s side when the party ended, and with a laugh only slightly edged (if she were young they would not have had a chance) Maya left them to it and went to bed.

After two days’ driving downstream from the market village, still forty kilometers from Hell’s Gate, they came around a bend in the canyon and could see down the length of it, to the towers of the piste’s suspension bridge. Like something out of a different world, Maya thought, with a different technology entirely. The towers were six hundred meters high, and ten kilometers apart — a truly immense bridge, dwarfing the town of Hell’s Gate itself, which did not roll over the horizon for another hour, and then came visible from the rim downward, its buildings spilling down the steep canyon walls like some dramatic seafront village in Spain or Portugal — but all in the shadow of the enormous bridge. Enormous, yes — and yet there were bridges twice as big as it in Chryse, and with the continual improvements in materials, there was no end in sight. The new elevator cable’s carbon nanotube filament had a tensile strength that was overkill even for the elevator’s needs, and using it you could build just about any surface bridge you could possibly imagine; people spoke of bridging Marineris, and there were jokes about running cable car lines between the prince volcanoes on Tharsis, to save people the fifteen-kilometer vertical drops between the three peaks.

Back in Hell’s Gate Maya and Diana returned the car to the garage, and had a big dinner in a restaurant about halfway up the wall of the valley, under the bridge. After that Diana had friends she wanted to see, so Maya excused herself and went to the Deep Waters offices, and her room. But outside the glass doors of her room, above its little balcony, the great span of the bridge arched through the stars, and remembering Dao Canyon and its people, and black Hadriaca ribboned white with its snow-filled channels, she had great difficulty getting to sleep. She went out and sat curled in a blanket, on a chair on her balcony, for a good part of the night, watching the underside of the giant bridge and thinking about Nirgal and the young natives, and what they meant.

The next morning they were supposed to take the next circumHellas train, but Maya asked Diana to drive her out onto the basin floor instead, to see in person what happened to the water running down the Dao River. Diana was happy to oblige.

At the lower end of the town, the stream poured into a narrow reservoir, dammed by a thick concrete dam and pump, located right at the tent wall. Outside the tent, water was carried off across the basin in a fat insulated pipeline, set on three-meter pylons. The pipeline ran down the broad gentle eastern slope of the basin, and they followed it in another company rover, until the crumbled cliffs of Hell’s Gate disappeared over the low dunes of the horizon behind them. An hour later the towers of the bridge were still visible, poking up over the skyline.