“And Arkady?”

She laughed.

“But you two are a couple!”

“Yes, yes. Like you and Maya.”

“Touche.”

Nadia smiled briefly. “I try to make Arkady think about things. That’s the best I can do. We’re meeting at Acheron in a month, to take the treatment. Maya tells me it’s a good thing to do together.”

“I recommend it,” John said with a grin.

“And the treatment?”

“Beats the alternative, right?”

She chuckled. Then the ground growled through their boots, and they stiffened and jerked their heads around, looking for shadows in the murk. A black bulk like a moving hill appeared to their right. They ran to the side, stumbling and hopping over cobbles and debris, John wondering if this were another attack, Nadia rapping out commands over the common band, cursing the teleoperators for not keeping track of them on the IR. “Watch your screens, you lazy bastards!”

The ground stopped trembling. The black leviathan no longer moved. They approached it warily. A Brobdignagian dump truck, on tracks. Built locally, by Utopia Planitia Machines; a robot built by robots, and big as an office block.

John stared up at it, feeling the sweat drip down his forehead. They were safe. His pulse slowed. “Monsters like this are all over the planet,” he said to Nadia wonderingly. “Cutting, scraping, digging, filling, building. Pretty soon some of them will attach themselves to one of those two-kilometer asteroids, and build a power plant that will use the asteroid itself as fuel to drive it into Martian orbit, at which point other machines will land on it, and begin to transform the rock into a cable about thirty-seven thousand kilometers long! The size of it, Nadia! The size!”

“It’s big all right.”

“It’s unimaginable, really. Something completely beyond human abilities as we were brought up to understand them. Teleoperation on a massive scale. A kind of spiritual waldo. Anything that can be imagined can be executed!” Slowly they walked around the giant black object before them: no more than a kind of dump truck, nothing compared to what the space elevator would be; and yet even this truck, he thought, was an amazing thing. “Muscle and brain have extended out through an armature of robotics that is so large and powerful that it’s difficult to conceptualize it. Maybe impossible. That’s probably part of your talent, and Sax’s too — to flex the muscles that no one else realizes we have yet. I mean holes drilled right through the lithosphere, the terminator lit with mirrored sunlight, all these cities filling mesas and stuck in the sides of cliffs-and now a cable strung out way past Phobos and Deimos, so long that it’s both in orbit and touching down at the same time! It’s impossible to imagine it!”

“Not impossible,” Nadia noted.

“No. And now of course we see the evidence of our power all around us, we almost get run down by it as it goes about its work! And seeing is believing. Even without an imagination you can see what kind of power we have. Maybe that’s why things are getting so strange these days, everyone talking about ownership or sovereignity, fighting, making claims. People squabbling like those old gods on Olympus, because nowadays we’re just as powerful as they were.”

“Or more,” Nadia said.

He drove on into the Hellespontus Montes, the curved mountain range surrounding Hellas Basin. Somehow, one night when he was sleeping, his rover got off the transponder road. He woke up, and in breaks in the dust saw that he was in a narrow valley, walled with small cliffs that were cut by the typical fluting of ravines. It seemed likely that by staying on the valley floor he would cross the road again, so he headed on cross country. Then the valley floor was disrupted by shallow transverse grabens like empty canals, and Pauline kept having to stop and turn and try another branch in her route-finding algorithm, defeated by one gulch after another as they appeared out of the murk. When John got impatient and tried to take over, it only got worse. In the land of the blind, the autopilot is king.

But slowly he closed on the valley mouth, where the map showed the transponder road descending to a wider valley below. So that night he stopped, unworried, and sat in front of the TV and ate a meal. Mangalavid was showing the premiere performance of an aeolia built by a group in Noctis Labyrinthus. The aeolia turned out to be a small building, cut with apertures which whistled or hooted or squeaked, depending on the angle and strength of the wind hitting them. For the premiere the daily downslope wind in Noctis was augmented by some fierce katabatic gusts from the storm, and the music fluctuated like a composition, mournful, angry, dissonant or in sudden snatches harmonic: it seemed the work of a mind, an alien mind perhaps, but certainly something more than random chance. The almost aleatory aeolia, as a commentator said.

After that came news from Earth. The existence of the gerontological treatments had been leaked by a official in Geneva, and had flashed around the world in a day; and now there was a violent debate going on in the general assembly concerning the matter. Many delegates were demanding that the treatments be made a basic human right, guaranteed by the UN for all, with funding from the developed nations placed immediately in a pool to make sure that financing for the treatments would be equally available to all. Meanwhile other reports were coming in: some religious leaders were coming out against the treatments, including the Pope; there were widespread riots, and some damage at certain medical centers. Governments were in a turmoil. All the faces on the TV were tense or angry, demanding change; and all the inequality, hatred and misery that the faces revealed made John flinch, he couldn’t watch. He fell asleep, and then slept poorly.

He was dreaming of Frank when a sound woke him. A knock on his windshield. It was the middle of the night. Groggily he hit the lock lock; sitting up he wondered that he had such a reflex action in him. When had he learned that one? He rubbed his jaw, turned on the common band. “Hello? Anyone out there?”

“The Martians.”

It was a man’s voice. His English was accented, but John couldn’t identify how.

“We want to talk,” the voice said.

John stood and looked out the windshield. At night, in the storm, there was precious little to see. But he thought he could pick out shapes in the blackness, there below him.

“We just want to talk,” the voice said.

If they had wanted to kill him they could have blown open the rover while he slept. Besides, he still couldn’t quite believe that anyone wished him harm. There was no reason for it!

So he let them in.

There were five of them, all men. Their walkers were frayed, dirty, patched with material that had not been made for walkers. Their helmets were without identification, stripped of all paint. As they took off the helmets he saw that one of the men was Asian, and young; he looked about eighteen. The youth went forward and sat in the driver’s seat, leaned over the steering wheel to look closer at the instrument array. Another got off his helmet; a short brown-skinned man, with a thin face and long dreadlocks. He sat on the padded bench across from John’s bed, and waited for the other three men to get their helmets off too. When they did they crouched on their haunches, watching John attentively. He had never seen any of them before.

The thin-faced man said, “We want you to slow the rate of immigration.” He was the one who had spoken outside; now his accent sounded Caribbean. He spoke in a low voice, almost in a whisper, and John found it very difficult not to emulate him.

“Or stop it,” the young man in the driver’s seat said.

“Shut up, Kasei.” The thin-faced man never took his gaze from John’s face. “There are too many people coming up. You know that. They’re not Martian, and they don’t care what happens here. They’re going to overwhelm us, they’re going to overwhelm you. You know that. You’re trying to turn them into Martians, we know, but they’re coming in a lot faster than you can work. The only thing that will work is slowing down the influx.”