And now Bombifale came into view, rising above them like a vision of antique splendor: great scalloped walls of burnt-orange sandstone set with huge diamond-shaped slabs of blue seaspar fetched from the shores of the Great Sea in Lord Pinitor’s time, and lofty needle-sharp towers sprouting on the battlements at meticulously regular intervals, slender and graceful, casting long shadows into the plain.

Valentine’s spirit throbbed with gathering joy and delight. Hundreds of miles of Castle Mount lay behind him, ring after ring of grand bustling cities, Slope Cities and Free Cities and Guardian Cities far below. The Castle itself was less than a day’s journey above, and the army that would have thwarted his climb had crumbled into pathetic turmoil behind him. And though he still felt the distant threatening twinges of the King of Dreams’ sendings at night, they were becoming only the merest tickle at the edges of his soul, and his beloved friend Elidath was ascending the Mount by his side, with Stasilaine and Tunigorn riding now to join them.

How good it was to behold the spires of Bombifale, and know what lay beyond! These hills, that towered city ahead, the dark thick grass of the meadows, the red stones of the mountain road from Bombifale to High Morpin, the dazzling flower-strewn fields that linked the Grand Calintane Highway from High Morpin to the southern wing of the Castle — he knew these places better than the sturdy but still somewhat unfamiliar body he now wore. He was almost home.

And then?

Deal with the usurper, yes, and set things to order — but the task was so awesome he scarcely knew where he would begin. He had been absent from Castle Mount almost two years, and deprived of power most of that time. The laws promulgated by Dominin Barjazid would have to be examined, and very likely repealed by blanket ordinance. And there was also the problem, which he had barely considered before this moment, of integrating the companions of his long wanderings into the former imperial officialdom, for surely he must find posts of power for Deliamber and Sleet and Zalzan Kavol and the rest, but there was Elidath to think of, and the others who had been central in his court. He could hardly discard them merely because he was coming home from his exile with new favorites. That was perplexing, but he hoped he would find some way of handling it that would breed no resentments and would cause no—

Deliamber said abruptly, "I fear new troubles heading in our direction, and not small ones."

"What do you mean?"

"Do you see any changes in the sky?"

"Yes," Valentine said. "It grows brighter and a deeper blue as we escape from the cloud-belt."

"Look more closely," said Deliamber.

Valentine peered upslope. Indeed he had spoken carelessly and too soon, for the brightening of the sky that he had noticed a short while ago was altered now, in a strange manner: there was a faint tinge of darkness overhead, as though a storm were coming on. No clouds were in sight, but an odd and sinister gray tint was moving in behind the blue. And the banners mounted on the floater-cars, which had been fluttering in a mild western breeze, had shifted and stood out stiffly to the south, blown by winds of sudden strength coming down from the summit.

"A change in the weather," Valentine said. "Rain, perhaps? But why are you concerned?"

"Have you ever known sudden changes in the weather to occur this high on Castle Mount?"

Valentine frowned. "Not commonly, no."

"Not ever," said Deliamber. "My lord, why is the climate of this region so benign?"

"Why, because it’s controlled from the Castle, artificially generated and governed by the great machines that—" He broke off, staring in horror.

"Exactly," Deliamber said.

"No! It’s unthinkable!"

"Think it, my lord," said the Vroon. "The Mount pierces high into the cold night of space. Above us in the Castle hides a terrified man who holds his throne by treachery, and who has just seen his most trusted generals desert to the side of his enemy. Now an invincible army climbs the summit of the Mount unhindered. How can he keep them from reaching him? Why, shut down the weather-machines and let this sweet air freeze in our lungs, let night fall in an afternoon and the darkness of the void come sweeping over us, turn this Mount back into the lifeless tooth of rock it was ten thousand years ago. Look at the sky, Valentine! Look at the banners in the wind!"

"But a billion people live on the Mount!" Valentine cried. "If he shuts down the weather-machines he destroys them along with us! And himself as well — unless he’s found some way to seal the Castle against the cold."

"Do you think he cares about his own survival now? He’s doomed in any event. But this way he can bring you down with him — you and everyone else on Castle Mount. Look at the sky, Valentine! Look at it darkening!"

Valentine found himself trembling, not out of fear but in anger that Dominin Barjazid should be willing to destroy all the cities of the Mount in this monstrous final cataclysm, to murder children and babes and mothers with child, and farmers in the fields and merchants in their shops, millions upon millions of the innocent who had no part in this struggle for the Castle. And why this slaughter? Why, merely to vent his rage at having lost what was never rightfully his! Valentine looked toward the sky, hoping to find some sign that this was only some natural phenomenon after all. But that was foolishness. Deliamber was right: on Castle Mount the weather was never a natural phenomenon.

In anguish Valentine said, "We are still far from the Castle. How long will it be before the freezing begins?"

Deliamber shrugged. "When the weather-machines first were constructed, my lord, it took many months before there was air dense enough to support life at these altitudes. Night and day the machines labored, yet it took months. Undoing that work will probably be faster than the doing of it was; but it will need more than an instant, I think."

"Can we reach the Castle in time to halt it?"

"It will be a close business, my lord," said the Vroon.

Grim-faced, scowling, Valentine ordered the car to halt and summoned his officers. Elidath’s vehicle, he saw, was already making its way laterally across the plain toward him in advance of the summons: plainly Elidath too had noticed that something was awry. As Valentine stepped from his car he shivered at the first touch of the air — though it was a shiver more of apprehension than of chill, for there was only the lightest hint of cooling thus far. Yet that was sufficiently ominous.

Elidath came running to his side. His expression was bleak. He pointed toward the darkening sky and said, "My lord, the madman is doing the worst!"

"I know. We also see the change beginning."

"Tunigorn is close below us now, and Stasilaine coming across by the Banglecode side. We must go on toward the Castle as fast as possible."

"Do you think we’ll have time?" Valentine asked.

Elidath managed a frosty grin. "Little enough to spare. But it’ll be the quickest homeward journey I’ll ever have made."

Sleet, Carabella, Lisamon Hultin, Asenhart, Ermanar, all were gathered close now, looking wholly mystified. These strangers to Castle Mount perhaps had noted the change in the weather, but had not drawn from it Elidath’s conclusions. They glanced from Valentine to Elidath and back again, troubled, dismayed, knowing that something was amiss but unable to comprehend the nature of it.

Crisply Valentine explained. Their looks of confusion gave way to disbelief, shock, rage, consternation.

"There will be no halt in Bombifale," Valentine said. "We go straight on to the Castle, via the High Morpin road, and no stopping of any kind between here and there." He looked toward Ermanar. "There is, I suppose, the possibility of panic among our forces. This must not happen. Assure your troops that we will be safe if only we reach the Castle in time, that panic is fatal and swift action the only hope. Understood? A billion lives depend on how fast we travel now — a billion lives and our own."