The man laughed at the thought, began to move on into the next car.

“Hey!” Nirgal called. “Wait!”

But the man only paused — “No no,” he said over his shoulder, “didn’t want to intrude — all I know, anyhow. You’ll have to look her up — in Sheerness perhaps — ”

And then the train was squealing into the station at Klein Scheidegg, and the man hopped out an opening door in the next car, and as Nirgal went to follow him other people got in the way, and his escorts came to explain to him that he needed to descend to Grindelwald immediately if he wanted to get home that night. Nirgal couldn’t deny them. But looking out the window as they rolled out of the station, he saw the British man who had spoken to him, walking briskly down a trail into the dusky valley below.

He landed at a big airportin southern England, and was driven north and east to a town the escorts called Faversham, beyond which the roads and bridges were flooded. He had arranged to come unannounced, and his escort here was a police team that reminded him more of UNTA security units back home than of his Swiss escort: eight men and two women, silent, staring, full of themselves. When they had heard what he wanted to do, they had wanted to hunt for Hiroko by bringing people in to ask about her; Nirgal was sure that would put her in hiding, and he insisted on going out without fanfare to look for her. Eventually he convinced them.

They drove in a gray dawn, down to a new seafront, right there among buildings: in some places there were lines of stacked sandbags between soggy walls, in other places just wet streets, running off under dark water that spread for as far as he could see. Some planks were thrown here and there over mud and puddles.

Then on the far side of one line of sandbags was brown water without any buildings beyond, and a number of row-boats tied to a grille covering a window half awash in dirty foam. Nirgal followed one of the escorts into one big row-boat, and greeted a wiry red-faced man, wearing a dirty cap pulled low over his forehead. A kind of water policeman, apparently. The man shook his hand limply and then they were off, rowing over opaque water, followed by three more boats containing the rest of Nirgal’s worried-looking guards. Nirgal’s oarsman said something, and Nirgal had to ask him to repeat it; it was as if the man only had half his tongue. “Is that Cockney, your dialect?”

“Cockney.” The man laughed.

Nirgal laughed too, shrugged. It was a word he remembered from a book, he didn’t know what it meant really. He had heard a thousand different kinds of English before, but this was the real thing, presumably, and he could hardly understand it. The man spoke more slowly, which didn’t help. He was describing the neighborhood they were rowing away from, pointing; the buildings were inundated nearly to their rooflines. “Brents,” he said several times, pointing with his oar tips.

They came to a floating dock, tied to what looked like a highway sign, saying “OARE.” Several larger boats were tied to the dock, or swinging from anchor ropes nearby. The water policeman rowed to one of these boats, and indicated the metal ladder welded to its rusty side. “Go on.”

Nirgal climbed the side of the boat. On the deck stood a man so short he had to reach up to shake Nirgal’s hand, which he did with a crushing grip. “So you’re a Martian,” he said, in a voice that lilted like the oarsman’s, but was somehow much easier to understand. “Welcome aboard our little research vessel. Come to hunt for the old Asian lady, I hear?”

“Yes,” Nirgal said, his pulse quickening. “She’s Japanese.”

“Hmm.” The man frowned. “I only saw her the once, but I would have said she was Asian, Bangladeshi maybe. They’re everywhere since the flood. But who can tell, eh?”

Four of Nirgal’s escorts climbed aboard, and the boat’s owner pushed a button that started an engine, then spun the wheel in the wheelhouse, and watched forward closely as the boat’s rear pushed down in the water, and they vibrated, then moved away from the drowned line of buildings. It was overcast, the clouds very low, sea and sky both a brownish gray.

“We’ll go out over the wharf,” the little captain said.

Nirgal nodded. “What’s your name?”

“Ely’s the name. B-L-Y.”

“I’m Nirgal.”

The man nodded once.

“So this used to be the docks?” Nirgal asked.

“This was Faversham. Out here were the marshes — Ham, Magden — it was mostly marsh, all the way to the Isle of Sheppey. The Swale, this was. More fen than flow, if you know what I mean. Now you get out here on a windy day and it’s like the North Sea itself. And Sheppey is no more than that hill you see out there. A proper island now.”

“And that’s where you saw…” He didn’t know what to call her.

“Your Asian grandma came in on the ferry from Vlis-singen to Sheerness, other side of that island. Sheerness and Minster have the Thames for streets these days, and at high tide they have it for their roofs too. We’re over Magden Marsh now. We’ll go out around Shell Ness, the Swale’s too clotted.”

The mud-colored water around them sloshed this way and that. It was lined by long curving trails of yellowing foam. On the horizon the water grayed. Bly spun the wheel and they slapped over short steep waves. The boat rocked, and in its entirety moved up and down, up and down. Nirgal had never been in one before. Gray clouds hung over them, there was only a wedge of air between the cloud bottoms and the choppy water. The boat jostled this way and that, bobbing corklike. A liquid world.

“It’s a lot shorter around than it used to be,” Captain Bly said from the wheel. “If the water were clearer you could see Sayes Court, underneath us.”

“How deep is it?” Nirgal asked.

“Depends on the tide. This whole island was about an inch above sea level before the flood, so however much sea level has gone up, that’s how deep it is. What are they saying now, twenty-five feet? More than this old girl needs, that’s sure. She’s got a very shallow draft.”

He spun the wheel left, and the swells hit the boat from the side, so that it rolled in quick uneven jerks. He pointed at one gauge: “There, five meters. Harry Marsh. See that potato patch, the rough water there? That’ll come up at midtide, looks like a drowned giant buried in the mud.”

“What’s the tide now?”

“Near full. It’ll turn in half an hour.”

“It’s hard to believe Luna can pull the ocean around that much.”

“What, you don’t believe in gravity?”

“Oh, I believe in it — it’s crushing me right now. It’s just hard to believe something so far away has that much pull.”

“Hmm,” the captain said, looking out into a bank of mist blocking the view ahead. “I’ll tell you what’s hard to believe, it’s hard to believe that a bunch of icebergs can displace so much water that all the oceans of the world have gone up this far.”

“That is hard to believe.”

“It’s amazing it is. But the proof’s right here floating us. Ah, the mist has arrived.”

“Do you get more bad weather than you used to?”

The captain laughed. “That’d be comparing absolutes, I’d say.”

The mist blew past them in wet long veils, and the choppy waves smoked and hissed. It was dim. Suddenly Nir-gal felt happy, despite the unease in his stomach during the deceleration at the bottom of every wave trough. He was boating on a water world, and the light was at a tolerable level at last. He could stop squinting for the first time since he had arrived on Earth.

The captain spun his big wheel again, and they ran with the waves directly behind them, northwest into the mouth of the Thames. Off to their left a brownish-green ridge emerged wetly out of greenish-brown water, buildings crowding its slope. “That’s Minster, or what’s left of it. It was the only high ground on the island. Sheerness is over there, you can see where the water is all shattered over it.”