She wore a rented exoskeleton, made for off-world visitors oppressed by the g. Gravity was destiny, as they said, and Earth had a lot of destiny. The suits were like birdsuits without wings, conformable bodysuits that moved with one’s muscles while providing some undersupport; body bras. They did not entirely ease the effect of the planet’s pull, for breathing was still an effort, and Zo’s limbs felt heavy within the suit, so to speak, pressed down uncomfortably against the fabric. She had gotten used to walking around in the suits on previous trips, and it was a fascinating exercise, like weight lifting, but not one that she liked very much. Better than the alternative, however. She had tried that too, but it was a terrible distraction, it kept one from really seeing, really being there.

So she walked around the ancient site of Gournia, in the peculiar, somewhat submarine flow of the suit. Gournia was her favorite of all the Ariadnean ruins, the only ordinary village of that civilization to have been found and excavated; the other sites were all palaces. This village had probably been a satellite of the palace at Malia: now a warren of waist-high walls made of stacked stones, covering a hilltop overlooking the Aegean. All the rooms were very small, often one meter by two, with alleys running between shared walls; little labyrinths, yes, and very much like the whitewashed villages that still dotted the countryside. People said that Crete had been hard hit by the great flood, as the Ariadneans had been by theirs following the explosion of Thera; and it was true that all the pretty little fishing harbors were flooded to one extent or another, and the Ariadnean ruins at Zakros and Malia entirely drowned. But what Zo saw on Crete was an everlasting vitality. There was no other place on Earth she had seen that had handled the population surge as well; everywhere small whitewashed villages clung to the land, like beehives, covering hilltops, filling valleys, and surrounded by crops and orchards, with the dry knobby hills still sticking out of the cultivated land, in sculptured ridges rising to the central spine of the island. The island’s population had risen to over forty million, she had heard, and yet the island still looked much the same; there were just more villages, built to match the pattern not only of the existing ones but of the ancient ones like Gour-nia and Itanos as well. Town planning with a continuity five thousand years old, continuity with that first peak of civilization or final peak of prehistory, so tall as to be glimpsed even by classical Greece a thousand years later, enduring by oral transmission alone as the myth of Atlantis — and then also in the shapes of all their subsequent lives, not only on Crete, but now on her Mars as well. Because of the names used in Dorsa Brevia, and that culture’s valorization of the Ariadnean matriarchy, the two places had developed a relationship; many Martians came to Crete to visit the ancient sites, and there were new hotels near all of them now, built on a slightly larger scale to accommodate the tall young pilgrims, visiting the holy places station to station — Phaistos, Gournia, Itanos, Malia and Zakros under the water, even the ridiculous “reconstruction” at Knossos. They came and saw how it had all begun, back in the morning of the world. Zo too — standing in the brilliant blue Aegean light, straddling a stone alleyway five thousand years old, she felt pouring into her the reverberations of that greatness, up through the spongy red stones underfoot and into her own heart. Nobility that would never end.

The rest of Earth, however, was Calcutta. Well, that wasn’t really fair. But Calcutta itself was definitely Calcutta. Fetid humanity at its most compacted; whenever she went out of her room Zo had at least five hundred people in her field of vision, and often a few thousand. There was a frightful exhilaration in the sight of all this life in the streets, a world of dwarfs and midgets and other assorted small people, all of whom saw her and clumped like baby birds to a parent who could feed them. Although Zo had to admit that the clumping was friendlier than that, composed more of curiosity than hunger — indeed they seemed more interested in her exoskeleton than her. And they seemed happy enough, thin but not emaciated, even when they were clearly permanently camped on the streets. The streets themselves were co-ops now, people had tenure, swept them, regulated the millions of little markets, grew crops in every plaza, and slept among them too. That was life on Earth in the late Holocene. After Ariadne it had been downhill all the way.

Zo went up to Prahapore, an enclave in the hills to the north of the city. This was where one of Jackie’s Terran spies lived, in the midst of a jammed dorm of harried civil servants, all living at their screens and sleeping under their desks. Jackie’s contact was a translator programmer, a woman who understood Mandarin, Urdu, Dravidian and Vietnamese, as well as her Hindu and English; she also was important in an extensive eavesdropping network, and could keep Jackie informed concerning some of the Indian-Chinese conversations about Mars.

“Of course they both will send more people to Mars,” the heavyset woman said to Zo, after they were out in the compound’s little herb garden. “That’s a given. But it does look like both governments feel they have their populations in a long-term solution. No one expects to have more than one child anymore. It’s not only the law, it’s the tradition.”

“The uterine law,” Zo said.

The woman shrugged. “Possibly so. A very strong tradition, in any case. People look around, they see the problem. They expect to get the longevity treatment, and they expect to have a sterility implant at that time. And in India, anyway, they feel lucky if they get the permits to remove the implants. And after having one child, people expect to be sterilized for good. Even the Hindu fundamentalists have changed on this, the social pressure on them was so great. And the Chinese have been doing this for centuries. The longevity treatment only reinforced what they had already been doing.”

“So Mars has le^ss to fear from them than Jackie thinks.”

“Well, they still want to send up emigrants, that’s part of the overall strategy. And resistance to the one-child rule has been stronger in some Catholic and Muslim countries, and several of those nations would like to colonize Mars as if it were empty. The threat shifts now, from India and China to the Philippines, Brazil, Pakistan.”

“Hmm,” Zo said. Talk of immigration always made her feel oppressed. Threatened by lemmings. “What about the exmetas?”

“The old Group of Eleven is rebanding in support of the strongest of the old metanats. They will be looking for places to develop. They’re much weaker than before the flood, but they still have a lot of influence in America, Russia, Europe, South America. Tell Jackie to watch what Japan does in the next few months, she’ll see what I mean.” They connected up wristpads so that the woman could make a secure transfer of detailed information for Jackie.

“Okay,” Zo said. Suddenly she was tired, as if a heavy man had crawled into the exoskeleton with her and were dragging her down. Earth, what a drag. Some people said they liked the weight, as if they needed that pressure to be convinced of their own reality. Zo wasn’t like that. Earth was the very definition of exoticism, which was fine, but suddenly she longed to be home. She unplugged her wristpad from the translator’s, imagining all the while that perfect middle way, that perfect test of will and flesh: the exquisite gravity of Mars.

Then it was down the space elevatorfrom Clarke, a trip that took longer than the flight from Earth; and she was back in the world, the only real world, Mars the magnificent. “There’s no place like home,” Zo said to the train-station crowd in Sheffield, and then she sat happily in the trains as they flowed over the pistes down Tharsis, then north to Echus Overlook.