There were moments during this section of the climb when Hillalum despaired, feeling displaced and estranged from the world; it was as if the earth had rejected him for his faithlessness, while heaven disdained to accept him. He wished Yahweh would give a sign, to let men know that their venture was approved; otherwise how could they stay in a place that offered so little welcome to the spirit?
The tower dwellers at this altitude felt no unease with their station; they always greeted the miners warmly and wished them luck with their task at the vault. They lived inside the damp mists of clouds, they saw storms from below and from above, they harvested crops from the air, and they never feared that this was an improper place for men to be. There were no divine assurances to be had, but the people never knew a moment's doubt.
With the passage of the weeks, the sun and moon peaked lower and lower in their daily journeys. The moon flooded the south side of the tower with its silver radiance, glowing like the eye of Yahweh peering at them. Before long, they were at precisely the same level as the moon when it passed; they had reached the height of the first of the celestial bodies. They squinted at the moon's pitted face, marveled at its stately motion that scorned any support.
Then they approached the sun. It was the summer season, when the sun appears nearly overhead from Babylon, making it pass close by the tower at this height. No families lived in this section of the tower, nor were there any balconies, since the heat was enough to roast barley. The mortar between the tower's bricks was no longer bitumen, which would have softened and flowed, but clay, which had been virtually baked by the heat. As protection against the day temperatures, the pillars had been widened until they formed a nearly continuous wall, enclosing the ramp into a tunnel with only narrow slots admitting the whistling wind and blades of golden light.
The crews of pullers had been spaced very regularly up to this point, but here an adjustment was necessary. They started out earlier and earlier each morning, to gain more darkness for when they pulled. When they were at the level of the sun, they traveled entirely at night. During the day, they tried to sleep, naked and sweating in the hot breeze. The miners worried that if they did manage to sleep, they would be baked to death before they awoke. But the pullers had made the journey many times and never lost a man, and eventually they passed above the sun's level, where things were as they had been below.
Now the light of day shone upward, which seemed unnatural to the utmost. The balconies had planks removed from them so that the sunlight could shine through, with soil on the walkways that remained; the plants grew sideways and downward, bending down to catch the sun's rays.
Then they drew near the level of the stars, small fiery spheres spread on all sides. Hillalum had expected them to be spread more thickly, but even with the tiny stars invisible from the ground, they seemed to be thinly scattered. They were not all set at the same height but instead occupied the next few leagues above. It was difficult to tell how far they were, since there was no indication of their size, but occasionally one would make a close approach, evidencing its astonishing speed. Hillalum realized that all the objects in the sky hurtled by with similar speed, in order to travel the world from edge to edge in a day's time.
During the day, the sky was a much paler blue than it appeared from the earth, a sign they were nearing the vault. When studying the sky, Hillalum was startled to see that there were stars visible during the day. They couldn't be seen from the earth amidst the glare of the sun, but from this altitude they were quite distinct.
One day Nanni came to him hurriedly and said, “A star has hit the tower!”
“What!” Hillalum looked around panicked, feeling like he had been struck by a blow.
“No, not now. It was long ago, more than a century. One of the tower dwellers is telling the story; his grandfather was there.”
They went inside the corridors and saw several miners seated around a wizened old man. “—lodged itself in the bricks about half a league above here. You can still see the scar it left; it's like a giant pockmark.”
“What happened to the star?”
“It burned and sizzled, and was too bright to look upon. Men considered prying it out, so that it might resume its course, but it was too hot to approach closely, and they dared not quench it. After a week it cooled into a knotted mass of black heaven metal, as large as a man could wrap his arms around.”
“So large?” said Nanni, his voice full of awe. When stars fell to the earth of their own accord, small lumps of heaven metal were sometimes found, tougher than the finest bronze. The metal could not be melted for casting, so it was worked by hammering when heated red; amulets were made from it.
“Indeed' no one had ever heard of a mass of this size found on the earth. Can you imagine the tools that could be made from it!”
“You did not try to hammer it into tools, did you?” asked Hillalum, horrified.
“Oh, no. Men were frightened to touch it. Everyone descended from the tower, waiting for retribution from Yahweh for disturbing the workings of creation. They waited for months, but no sign came. Eventually they returned and pried out the star. It sits in a temple in the city below.”
There was silence. Then one of the miners said, “I have never heard of this in the stories of the tower.”
“It was a transgression, something not spoken of.”
As they climbed higher up the tower, the sky grew lighter in color, until one morning Hillalum awoke and stood at the edge and yelled from shock: What had before seemed a pale sky now appeared to be a white ceiling stretched far above their heads. They were close enough now to perceive the vault of heaven, to see it as a solid carapace enclosing all the sky. All of the miners spoke in hushed tones, staring up like idiots, while the tower dwellers laughed at them.
As they continued to climb, they were startled at how near they actually were. The blankness of the vault's face had deceived them, making it undetectable until it appeared, abruptly, seemingly just above their heads. Now instead of climbing into the sky, they climbed up to a featureless plain that stretched endlessly in all directions.
All of Hillalum's senses were disoriented by the sight of it. Sometimes when he looked at the vault, he felt as if the world had flipped around somehow, and if he lost his footing he would fall upward to meet it. When the vault did appear to rest above his head, it had an oppressive weight. The vault was a stratum as heavy as all the world, yet utterly without support, and he feared what he never had in the mines: that the ceiling would collapse upon him.
Too, there were moments when it appeared as if the vault was a vertical cliff face of unimaginable height rising before him, and the dim earth behind him was another like it, and the tower was a cable stretched taut between the two. Or worst of all, for an instant it seemed that there was no up and no down, and his body did not know which way it was drawn. It was like fearing the height, but much worse. Often he would wake to find himself sweating and his fingers cramped, trying to clutch the brick floor.
Nanni and many of the other miners were bleary-eyed, too, though no one spoke of what disturbed their sleep. Their ascent grew slower, instead of faster as their foreman Beli had expected; the sight of the vault inspired unease rather than eagerness. The regular pullers became impatient with them. Hillalum wondered what sort of people were forged by living under such conditions, did they escape madness? Did they grow accustomed to this? Would the children born under a solid sky scream if they saw the ground beneath their feet?