Rama 2 by Arthur C. Clarke and Gentry Lee

“Good work,” Wakefield said. “But I’ll warn you that you’re in the easy part, around the ladders and the top of the stairway. Working weightless is a snap. Wait until the gravity is measurably different at each location.”

“According to the laser range finder, Cosmonaut Wakefield is exactly eight-point-one-three kilometers away from me,” everyone heard Dr. Takagi-shi interject.

“That doesn’t tell me anything, Professor, unless 1 know where the hell you are.”

“I’m standing on the ledge just outside our relay station, near the bottom of the Alpha stairway.”

“Come on, Shig, won’t you Orientals ever go along with the rest of the world? The Newton is parked on the top of Rama and you are at the top of the stairway. If we can’t agree on up and down, how can we ever hope to communicate our innermost feelings? Much less play chess together.”

“Thank you, Janos. I am at the top of the Alpha stairway. By the way, what are you doing? Your range is increasing rapidly.”

“I’m sliding down the banister to meet Richard for lunch. I don’t like eating fish and chips by myself.”

“I’m also coming down for lunch,” Francesca said. “I just finished filming an excellent demonstration of the Coriolis force using Hiro and Irina. It will be great for elementary physics classes. I should be there in five minutes.”

“Say, signora”—it was Wakefield again—”do you think we could talk you into some honest-to-goodness work? We stop what we’re doing to accommo­date your filming—maybe we can make a trade with you.”

“I’m willing,” answered Francesca. “I’ll help after lunch. But what I would like now is some light. Could you use one of your flares and let me capture you and Janos having a picnic on the Stairway of the Gods?”

Wakefield programmed a flare for a delayed ignition and climbed eighty steps to the nearest ledge. Cosmonaut Tabori arrived at the same spot half a minute before the light flooded them. From two kilometers above, Francesca panned across the three stairways and then zoomed in on the two figures sitting cross-legged on the ledge. From that perspective, Janos and Richard looked like two eagles nesting in a high mountain aerie.

By late afternoon the Alpha chairlift was finished and ready for testing. “We’ll let you be the first customer,” Richard Wakefield said to Francesca, “since you were good enough to help.” They were standing in full gravity at the foot of the incredible stairway. Thirty thousand steps stretched into the darkness of the artificial heavens above them. Beside them on the Central Plain the ultralight motor and the self-contained portable power station for the chairlift were already in operation. The cosmonauts had transported the electrical and mechanical subsystems in unassembled pieces on their backs and assembly had required less than an hour.

“The little chairs are not permanently connected to the cables,” Wake-field explained to Francesca. “At each end there is a mechanism that at­taches or detaches the chairs. That way it’s not necessary to have an almost infinite number of seats.”

Francesca hesitantly sat down in the plastic structure that had been pulled away from a group of similar baskets hanging from a side cable. “You’re certain this is safe?” she said, staring at the darkness above her.

“Of course,” Richard said with a laugh. “It’s exactly like the simulation. And I’ll be in the next chair behind you, only one minute or four hundred meters below. Altogether the ride takes forty minutes from bottom to top. Average speed is twenty-four kilometers per hour.”

“And I don’t do anything,” Francesca remembered, “except sit tight, hold on, and activate my breathing system about twenty minutes from the sum­mit.”

“Don’t forget to fasten your seat belt,” Wakefield reminded her with a smile. “If the cable were to slow down or stop near the top, where you are weightless, your momentum could cause you to sail out into the Raman void.” He grinned. “But since the entire chairlift runs beside the stairway, in the event of any emergency, you could always climb out of your basket and walk back up to the hub along the stairs.”

Richard nodded and Janos Tabori switched on the motor. Francesca was lifted off the ground and soon disappeared above them. “I’ll go right over to Gamma after I’m certain you’re on your way,” Richard said to Fanos. “The second system should be easier. With all of us working together, we should be finished by nineteen hundred at the latest.”

“I’ll have the campsite ready by the time you reach the summit,” Janos remarked, “Do you think we’re still going to stay down here tonight?”

“That doesn’t make much sense,” David Brown said from above. He or Takagishi had monitored all cosmonaut communications throughout the day. “The rovers aren’t ready yet. We had hoped to do some exploring tomorrow.”

“If we each bring down a few subsystems,” Wakefield replied, “Janos and I could assemble one rover tonight before we go to sleep. The second rover will probably be operational before noon tomorrow if we don’t encounter any difficulties.”

“That’s a possible scenario,” Dr. Brown responded. “Let’s see how much progress we have made and how tired everyone is three hours from now.” Richard climbed into his tiny chair and waited for the automatic loading algorithm in the processor to attach his seat to the cable. “By the way,” he said to his companion as he started his ascent, “thanks a lot for your good humor today. I might not have made it without the jokes.”

Janos smiled and waved at his friend. Looking upward from his moving chair, Richard Wakefield could barely make out the light from Francesca’s headgear. She’s more than a hundred floors above me, he thought. But only two and a half percent of the distance from here to the hub. This place is immense.

He reached in his pocket and pulled out the portable meteorological sta­tion that Takagishi had asked him to carry. The professor wanted a careful profile of all the atmospheric parameters in the north polar bowl of Rama. Of particular importance for his circulation models was the density and temperature of the air versus the distance below the airlock.

Wakefield watched the pressure readings, which started at 1.05 bars, fall below Earth levels, and continue their steady, monotonic decline. The tem­perature held fixed at a cold minus eight degrees Celsius. He leaned back and closed his eyes. It was a strange feeling, riding a basket upward, ever upward in the dark. Richard turned down the volume of one channel on his commpak; the only ongoing conversation was between Yamanaka and Turgenyev and neither of them ever had very much to say. He increased the volume on Beethoven’s Sixth Symphony, which was playing in the back­ground on another channel.

As he listened to the music, Richard was surprised at how his internal visions of brooks and flowers and green fields on Earth evoked a powerful feeling of homesickness. It was almost impossible for him to fathom the miraculous concatenation of events that had carried him from his boyhood home in Stratford to Cambridge to the Space Academy in Colorado and finally to here, to Rama, where he was riding a chairlift in the dark along the Stairway to the Gods.

No, Prospero, he said to himself, no magician could ever have conceived of such a place. He remembered seeing The Tempest for the first time as a boy and being frightened by the portrayal of a world whose mysteries might be beyond our comprehension. There is no magic, he had said at the time. There are only natural concepts that we cannot yet explain. Richard smiled. Prospero was not a mage; he was only a frustrated scientist

A moment later Richard Wakefield was stupefied by the most amazing sight he had ever seen. As his chair was sailing soundlessly upward, parallel to the stairway, dawn burst upon Rama. Three kilometers below him, cut into the Central Plain, the long straight valleys that ran from the edge of the bowl to the Cylindrical Sea suddenly exploded with light. The six linear suns of Rama, three in each hemicylinder, were carefully designed to produce a balanced illumination throughout the alien world. Wakefield’s first feelings were of vertigo and nausea. He was suspended in air by a thin cable, thou­sands of meters above the ground. He closed his eyes and tried to maintain his bearings. You will not fall, he said to himself.

“Aieee,” he heard Hiro Yamanaka yell.

From the ensuing conversation he could tell that Hiro, startled by the burst of light, had lost his footing near the middle of the Gamma stairway. He had apparently fallen twenty or thirty meters before he had adroitly (and luckily) managed to grab part of the banister.

“Are you all right?” David Brown asked.

“I think so,” Yamanaka answered breathlessly.

With the short crisis over, everyone started talking at once. “This is fantastic!” Dr. Takagishi was shouting. “The light levels are phenomenal. And this is all happening before the thawing of the sea. It’s different. It’s alto­gether different.”