Clouds.
A hundred and fifty million square kilometers of clouds, a billion cubic kilometers of clouds. In the ocean of clouds the floating cities of Venus are not limited, like terrestrial cities, to two dimensions only, but can float up and down at the whim of the city masters, higher into the bright cold sunlight, downward to the edges of the hot murky depths.
Clouds. The barque sailed over cloud-cathedrals and over cloud-mountains, edges recomplicated with cauliflower fractals. We sailed past lairs filled with cloud-monsters a kilometer tall, with arched necks of cloud stretching forward, threatening and blustering with cloud-teeth, cloud-muscled bodies with clawed feet of flickering lightning.
The barque was floating now, drifting downward at subsonic speed, trailing its own cloud-contrail, which twisted behind us like a scrawl of illegible handwriting. Even the pilot, if not actually fallen silent, had at least slowed down his chatter, letting us soak in the glory of it. “Quite something, isn’t it?” he said. “The kingdom of the clouds. Drives some people batty with the immensity of it, or so they say—cloud-happy, they call it here. Never get tired of it, myself. No view like the view from a barque to see the clouds.” And to prove it, he banked the barque over into a slow turn, circling a cloud pillar that rose from deep down in the haze to tower thousands of meters above our heads. “Quite a sight.”
“Quite a sight,” I repeated.
The pilot-monk rolled the barque back, and then pointed, forward and slightly to the right. “There. See it?”
I didn’t know what to see. “What?”
“There.”
I saw it now, a tiny point glistening in the distance. “What is it?”
“Hypatia. The jewel of the clouds.”
As we coasted closer, the city grew. It was an odd sight. The city was a dome, or rather, a dozen glistening domes melted haphazardly together, each one faceted with a million panels of glass. The domes were huge, the smallest nearly a kilometer across, and as the barque glided across the sky the facets caught the sunlight and sparkled with reflected light. Below the domes, a slender pencil of rough black stretched down toward the cloudbase like taffy, delicate as spun glass, terminating in an absurdly tiny bulb of rock that seemed far too small to counterbalance the domes.
“Beautiful, you think, yes? Like the wonderful jellyfishes of your blue planet’s oceans. Can you believe that half a million people live there?”
The pilot brought us around the city in a grand sweep, showing off, not even bothering to talk. Inside the transparent domes, chains of lakes glittered in green ribbons between boulevards and delicate pavilions. At last he slowed to a stop, and then slowly leaked atmosphere into the vacuum vessel that provided the buoyancy. The barque settled down gradually, wallowing from side to side now that the stability given by its forward momentum was gone. Now it floated slightly lower than the counterweight. The counterweight no longer looked small, but loomed above us, a rock the size of Gibraltar. Tiny fliers affixed tow ropes to hardpoints on the surface of the barque, and slowly we were winched into a hard-dock.
“Welcome to Venus,” said the monk.
The surface of Venus is a place of crushing pressure and hellish temperature. Rise above it, though, and the pressure eases, the temperature cools. Fifty kilometers above the surface, at the base of the clouds, the temperature is tropical, and the pressure the same as Earth normal. Twenty kilometers above that, the air is thin and polar cold.
Drifting between these two levels are the ten thousand floating cities of Venus.
A balloon filled with oxygen and nitrogen will float in the heavy air of Venus, and balloons were exactly what the fabled domed cities were. Geodetic structures with struts of sintered graphite and skin of transparent polycarbonate synthesized from the atmosphere of Venus itself, each kilometer-diameter dome easily lifted a hundred thousand tons of city.
Even the clouds cooperated. The thin haze of the upper cloud deck served to filter the sunlight so that the intensity of the Sun here was little more than the Earth’s solar constant.
Hypatia was not the largest of the floating cities, but it was certainly the richest, a city of helical buildings and golden domes, with huge open areas and elaborate gardens. Inside the dome of Hypatia, the architects played every possible trick to make us forget that we were encapsulated in an enclosed volume.
But we didn’t see this part, the gardens and waterfalls, not at first. Leaving the barque, we entered a disembarking lounge below the city. For all that it featured plush chaise lounges, floors covered with genetically engineered pink grass, and priceless sculptures of iron and jade, it was functionaclass="underline" a place to wait.
It was large enough to hold a thousand people, but there was only one person in the lounge, a boy who was barely old enough to have entered his teens, wearing a bathrobe and elaborately pleated yellow silk pants. He was slightly pudgy, with an agreeable, but undistinguished, round face.
After the expense of our transport, I was surprised at finding only one person sent to await our arrival.
The kid looked at Leah. “Doctor Hamakawa. I’m pleased to meet you.” Then he turned to me. “Who the hell are you?” he said.
“Who are you?” I said. “Where’s our reception?”
The boy was chewing on something. He seemed about to spit it out, and then thought better of it. He looked over at Leah. “This guy is with you, Dr. Hamakawa? What’s he do?”
“This is David Tinkerman,” Leah said. “Technician. And, when need be, pilot. Yes, he’s with me.”
“Tell him he might wish to learn some manners,” the boy said.
“And who are you?” I shot back. “I don’t think you answered the question.”
The not-quite-teenager looked at me with disdain, as if he wasn’t sure if he would even bother to talk to me. Then he said, in a slow voice as if talking to an idiot, “I am Carlos Fernando Delacroix Ortega de la Jolla y Nordwald-Gruenbaum. I own this station and everything on it.”
He had an annoying high voice, on the edge of changing, but not yet there.
Leah, however, didn’t seem to notice his voice. “Ah,” she said. “You are the scion of Nordwald-Gruenbaum. The ruler of Hypatia.”
The kid shook his head and frowned. “No,” he said. “Not the scion, not exactly. I am Nordwald-Gruenbaum.” The smile made him look like a child again; it make him look likable. When he bowed, he was utterly charming. “I,” he said, “am the sultan of the clouds.”
Carlos Fernando, as it turned out, had numerous servants indeed. Once we had been greeted, he made a gesture and an honor guard of twenty women in silken doublets came forward to escort us up.
Before we entered the elevator, the guards circled around. At a word from Carlos Fernando, a package was brought forward. Carlos took it, and, as the guards watched, handed it to Leah. “A gift,” he said, “to welcome you to my city.”
The box was simple and unadorned. Leah opened it. Inside the package was a large folio. She took it out. The book was bound in cracked, dark red leather, with no lettering. She flipped to the front. “Giordano Bruno,” she read. “On the Infinite Universe and Worlds.” She smiled, and riffled through the pages. “A facsimile of the first English edition?”
“I thought perhaps you might enjoy it.”
“Charming.” She placed it back in the box, and tucked it under her arm. “Thank you,” she said.
The elevator rose so smoothly it was difficult to believe it traversed two kilometers in a little under three minutes. The doors opened to brilliant noon sunlight. We were in the bubble city.
The city was a fantasy of foam and air. Although it was enclosed in a dome, the bubble was so large that the walls nearly vanished into the air, and it seemed unencumbered. With the guards beside us, we walked through the city. Everywhere there were parks, some just a tiny patch of green surrounding a tree, some forests perched on the wide tops of elongated stalks, with elegantly sculpted waterfalls cascading down to be caught in wide fountain basins. White pathways led upward through the air, suspended by cables from impossibly narrow beams, and all around us were sounds of rustling water and birdsong.