The mission to High Equatoria might have been low-tech and low-key, but the Intelligence team in the airport was efficient enough. The bags of rock flour were carted off in armored cars; even more impressive, the major in charge had not even wisecracked about the absurdity of the operation.

Inside of thirty minutes, Hrunk and his now not-so-relevant bodyguards were out on the street.

"What d'ya mean, ‘not relevant'?" Arla waved her arms in exaggerated wonder. "Not relevant was shepherding that...stuff across the continent." Neither of the two knew the importance of the rock flour, and they had not been shy in showing their contempt for it. They were good agents, but they didn't have the attitude Hrunk was used to. "Now we have something important to guard." She jerked a hand in Unnerby's direction, and there was something serious behind the good humor. "Why didn't you make our life easy, and go with the major's people?"

Hrunkner smiled back. "It's more than an hour before I meet the chief. Plenty of time to walk the distance. Aren't you curious, Arla? How many ordinary folks get to see Calorica on the First Day of the Dark?"

Arla and Brun glowered at that, the look of noncoms confronted by stupid behavior that they could not correct. Unnerby had felt that way often enough in his life, though normally he hadn't shown his disapproval so obviously. The Kindred had demonstrated more than once their willingness to be violent on other peoples' lands.But I've lived seventy-five years, andthere are so many things to be afraid of. He was already moving away, toward the lights at the water's edge. Unnerby's usual bodyguards, the ones who accompanied him on his foreign site visits, would have bodily restrained him. Arla and Brun were loaners, not so well briefed. After a moment, they scurried forward to pace him. But Arla was talking into her little telephone. Unnerby grinned to himself. No, these two weren't stupid.I wonder if I'll notice the agents she's calling.

Calorica Bay had been a wonder of the world since the earliest times. It was one of only three volcanic sites known—and the other two were under ice and ocean. The bay itself was actually the broken-down bowl of the volcano, and ocean waters drowned most of its central pit.

In the early years of a New Sun, it was a hell of hells, though no one had directly observed the place then. The steeply curving walls of the bowl concentrated the sun's light and the temperatures climbed above the melting point of lead. Apparently this provoked—or allowed—fast lava seepage, and a continuous series of explosions, leaving new crater walls by the time the sun had dimmed to mid-Brightness. Even in those years, only the most foolhardy explorers poked themselves over the altiplano rim of the bowl.

But as the sun dimmed into the Waning Years of its cycle, a different visitor appeared. As northern and southern lands found winters that were steadily harsher, now the highest reaches of the bowl were pleasant and warm. And as the world cooled, lower and lower parts of the bowl became first accessible, and then a paradise. Over the last five generations, Calorica Bay had become the most exclusive resort of the Waning Years, the place where people so rich that they didn't have to save and work to prepare for the Dark could come and enjoy themselves. At the height of the Great War, when Unnerby was pounding snow on the Eastern Front, and even later, when most of the war was tunnel fighting—even then, he remembered seeing tinted engravings showing the life of mid-Brightness leisure that the idle rich led at the bottom of Calorica's bowl.

In a way, Calorica at the beginning of the Dark was like the world that modern engineering and atomic energy were bringing to the entire race of Spiders, for all the years of the Dark. Unnerby walked toward the music and lights ahead, wondering what he would see.

• • •

The crowds swirled everywhere. There was laughter and pipe music and occasional argument. And the people were strange in so many ways that for a while Unnerby did not notice the most important things.

He let the crowd motion jostle them this way and that like particles in a suspension. He could imagine how nervous Arla and Brun felt about this mob of uncleared strangers. But they made the most of it, blending into the rowdy noise, just accidentally staying within arm's reach of Unnerby. In a matter of minutes, the three had been swept down to the water's edge. Some in the crowd waved burning sticks of incense, but there was a stronger perfume here at the bottom of the crater, a sulfurous odor that drifted on the warm breeze. Across the water, at the middle of the bay, molten rock glowed in red and near-red and yellow. Steam floated up, wraithlike, all round the center pile. This was one body of water where no one need worry about bottom ice and leviathans—though a volcanic blast would kill them all just as dead.

"Damn!" Brun slipped out of character, jostled Unnerby back from the edge of the plaza. "Look out there in the water. There are people drowning!"

Unnerby stared a second at where she was pointing. "Not drowning. They're...by the Dark, they're playing in the water!" The half-submerged figures were wearing some sort of pontoons to keep from sinking. The three of them just stared, and he noticed they were not alone in their surprise, though most of the onlookers tried to cover their shock. Why would anyoneplay at drowning? For a military goal perhaps; in warmer times, both Kindred and Accord had warships.

Thirty feet down the stone palisade, another reveler splashed into the water. Suddenly, the water's edge seemed like the edge of a deadly cliff. Unnerby backed off, away from the screams of delight or horror that came from the water. The three of them drifted across the bottom plaza toward light-bedecked trees. Here, in the open, they had a clear view of the sky and the caldera walls.

It was midafternoon, yet except for the cool-colored lights in the trees, and the heat colors from crater-center, it was as dark as any night. The sun looked down on them, a faint blotch in the sky, a reddish disk pocked with small dark marks.

The First Day of the Dark. Religions and nations set minor variations in the date. The New Sun began with an explosive blaze of light, though no one was alive to see it. But the end of the light—that was a slow waning that extended across almost the whole of the Brightness. For the last three years, the sun had been a pale thing, scarcely warming your back at high noon, dim enough to stare at with a fully open gaze. For the last year, the brighter stars had been visible all through the day. But even that was not officially the beginning of the Dark, though it was a sign that green plants couldn't grow anymore, that you'd better have your main food supplies in your deepness, and that tuber and grub farms would be all that could sustain you until it came time to retreat beneath the earth.

So in that gradual slide toward oblivion, what was it that marked the instant—the day at least—that was the first of the Dark? Unnerby stared straight at the sun. It was the color of a warm stovetop, but so dim he felt no warmth. It would get no dimmer. Now the world would simply grow colder and colder and colder with nothing more than starlight and that reddish disk to light it. From now on, the air would always be too cold to be easily breathed. In past generations, this marked the beginning of the final rush to store the necessities in one's deepness. In past generations, it marked the last chance for a father to provide for his cobblies' future. In past generations, it marked a time of high nobility and great treason and cowardice, when all those who were not quite prepared were confronted by the fact of the Dark and the cold.