In the clouds, in the wind. The southern shore of the northern sea was a succession of gulfs and headlands, bays and peninsulas, fjords and capes, seastacks and low archipelagoes. Nirgal followed it for day after day, landing in the late afternoons at little new seaside settlements. He saw crater islands with interiors lower than the ice and water outside the rim. He saw some places where the ice seemed to be receding, so that bordering the ice were black strands, raked by parallel lines running down to ragged drift errata of jumbled rock and ice. Would these strands flood again, or would they grow wider still? No one in these seaside towns knew. No one knew where the coastline would stabilize. The settlements here were made to be moved. Diked polders showed that some people were apparently testing the newly exposed land’s fertility. Fringing the white ice, green crop rows.

North of Utopia he passed over a low peninsula that extended from the Great Escarpment all the way to the north polar island, the only break in the world-wrapping ocean. A big settlement on this low land, called Boone’s Neck, was half-tented and half in the open. The settlement’s occupants were engaged in cutting a canal through the peninsula.

A wind blew north and Nirgal followed it. The winds hummed, whooshed, keened. On some days they shrieked. Live beings, at war. In the sea on both sides of the long low peninsula were tabular ice shelfs. Tall mountains of jade ice broke through these white sheets. No one lived up here, but Nirgal was not searching anymore — he had given up, very near despair, and was just floating, letting the winds take him like a dandelion seed: over the ice sea, shattered white; over open purple water, lined by sun-bright waves. Then the peninsula widened to become the polar island, a white bumpy land in the sea ice. No sign of the primeval swirl pattern of melt valleys. That world was gone.

Over the other side of the world and the North Sea, over Orcas Island on the east flank of Elysium, down over Cimmeria again. Floating like a seed. Some days the world went black and white: icebergs on the sea, looking into the sun; tundra swans against black cliffs; black guillemots flying over the ice; snow geese. And nothing else in all the day.

Ceaseless wandering. He flew around the northern parts of the world two or three times, looking down at the land and the ice, at all the changes taking place everywhere, at all the little settlements huddling in their tents, or out braving the cold winds. But all the looking in the world couldn’t make the sorrow go away.

One day he came on a new harbor town at the entry to the long skinny fjord of Marwth Vallis, and found his Zy-gote creche mates Rachel and Tiu had moved there. Nirgal hugged them, and over a dinner and afterward he stared at their oh-so-familiar faces with intense pleasure. Hiroko was gone but his brothers and sisters remained, and that was something; proof that his childhood was real. And despite all the years they looked just like they had when they were children; there was no real difference. Rachel and he had been friends, she had had a crush on him in the early years, and they had kissed in the baths; he recalled with a little shiver a time when she had kissed him in one ear, Jackie in the other. And, though he had almost forgotten it, he had lost his virginity with Rachel, one afternoon in the baths, shortly before Jackie had taken him out into the dunes by the lake. Yes, one afternoon, almost accidentally, when their kissing had suddenly become urgent and exploratory, a matter of their bodies moving outside their own volition.

Now she regarded him fondly — a woman his age, her face a map of laugh lines, cheery and bold. She may have recalled their early encounter as little as he did — hard to say what his siblings remembered of their shared bizarre childhood — but she looked like she remembered. She had always been friendly, and she was again now. He told her about his flights around the world, carried by the ceaseless winds, diving slowly against the blimp’s buoyancy down to one little habitation after another, asking after Hiroko.

Rachel shook her head, smiling ironically. “If she’s out there, she’s out there. But you could look forever and never find her.”

Nirgal heaved a troubled sigh, and she laughed and tousled his hair.

“Don’t look for her.”

That evening he walked along the strand, just uphill from the devastated berg-strewn shoreline of the northern sea. He felt in his body that he needed to walk, to run. Flying was too easy, it was a dissociation from the world — things were small and distant — again, it was the wrong end of the telescope. He needed to walk.

Still he flew. As he flew, however, he looked more closely at the land. Heath, moor, streamside meadows. A creek falling directly into the sea over a short drop, another one crossing a beach. Salt creeks into a fresh ocean. In some places they had planted forests, to try to cut down on dust storms that originated in this area. There were still dust storms, but the trees of the forest were saplings still. Hiroko might be able to sort it out. Don’t look for her. Look at the land.

He flew back to Sabishii. There was still a lot of work to be done there, clearing away burned buildings and then building new ones. Some construction co-ops were still accepting new members. One was doing reconstruction but was also building blimps and other fliers, including some experimental birdsuits. He talked with them about joining.

He left his blimpglider in town with them, and took long runs out onto the high moors east of Sabishii. He had run these uplands during his student years. A lot of the ridge runs were familiar still; beyond them, new ground. A high land, with its moorish life. Big kami boulders stood here and there on the rumpled land, like sentinels.

One afternoon, running an unfamiliar ridge, he looked down into a small high basin like a shallow bowl, with a break opening to lower land to the west. Like a glacial cirque, though more likely it was an eroded crater with a break in its rim, making a horseshoe ridge. About a kilometer across — quite shallow. Just a rumple among the many rumples on the Tyrrhena massif. From the encircling ridge the horizons were far away, the land below lumpy and irregular.

It seemed familiar. Possibly he had visited it on an over-nighter in his student years. He hiked slowly down into the basin, and still felt like he was on top of the massif; something about the dark clean indigo of the sky, the spacious long view out the gap to the west. Clouds rolled overhead like great rounded icebergs, dropping dry granular snow, which was chased into cracks or out of the basin entirely by the hard wind. On the circling ridge, near the northwest point of the horseshoe, there was a boulder sitting like a stone hut. It stood on four points on the ridge, a dolmen worn to the smoothness of an old tooth. The sky over it lapis lazuli.

Nirgal walked back down to Sabishii and looked into the matter. The basin was untended, according to the maps and records of the Tyrrhena Massif Areography and Ecopoesis Council. They were pleased he was interested. “The high basins are hard,” they told him. “Very little grows. It’s a long project.”

“Good.”

“You’ll have to grow most of your food in greenhouses. Potatoes, however — once you get enough soil, of course — ”

Nirgal nodded.

They asked him to drop by the village of Dingboche, the one nearest the basin, and make sure no one there had plans for it.

So he drove back up, in a little caravan with Tariki and Rachel and Tiu and some other friends who had gathered to help. They drove over a low ridge and found Dingboche, set on a little wadi that was now being farmed, mostly in hardscrabble potato fields. There had been a snowstorm, and all the fields were white rectangles, divided by low black walls of stacked stones. A number of long low stone houses, with plate-rock roofs and thick square chimneys, were scattered among the fields, with several more clustered at the village’s upper end. The longest building in this cluster was a two-storied teahouse, with a big mattress-filled room to accommodate visitors.