"You can break your skull quicker than that," Stan said pleasantly, and, as if to verify his words, the immense bulk of the Ball surged violently sideways, tipping as it did so. The two scientists clung to their couches while the pilot rightened the ship.
"You're an accurate prophet of doom," Aldo said. "Do you dispense good omens as well?"
"Only on Tuesdays, Doc," Stan answered imperturbably as the pressure gauge died again and he switched to the next transmitter. "Rate of fall steady."
"This is taking an infernally long time," Nissim complained, lighting a cigarette.
"Twenty thousand miles to the bottom, Doc, and we don't want to hit too hard."
"I am well acquainted with the thickness of Saturn's atmosphere," Nissim said angrily. "And could you refrain from calling me 'Doc'? If for no other reason than that you address Doctor Gabrielli in the same way, and a certain confusion results."
"Right you are, Doc." The pilot turned and winked as he heard the physicist's angry gasp. "That was just a joke. We're all in the same boat so we can all be cobbers just like at home. Call me Stan and I'll call you Nissim. And what about you, Doc, going to be Aldo?"
Aldo Gabrielli pretended that he did not hear. The pilot was an infuriating man. "What is that?" he asked as a continuous, faint vibration began to shake the Ball.
"Hard to tell," the pilot answered, throwing switches rapidly, then examining the results on his screens. "Something out there, clouds maybe, that we're moving through. Varying impacts on the hull."
"Crystalization," Nissim said, looking at the pressure gauge. "The top of the atmosphere is two hundred and ten degrees below zero Fahrenheit, but up there the low vapor pressure prevents freezing. The pressure is much higher now. We must be falling through clouds of methane and ammonia crystals
"I've just lost my last radar," Stan said. "Carried away."
"We should have had television pickups; we could see what is out there," Nissim said.
"See what?" Aldo asked. "Hydrogen clouds with frozen crystals in them? They would have been destroyed like the other instruments. The radio altimeter is the only instrument that's essential."
"And it's working fine," Stan announced happily.
"Still too high for a reading, but it's in the green. Should be; it's an integral part of the hull."
Nissim sipped from the water tube on the side of his couch. Aldo's mouth was suddenly dry as he saw this and he drank, too. The endless fall continued.
"How long have I been asleep?" Nissim asked, surprised that he had actually dropped off despite the tension.
"Just a few hours," Stan told him. "You seemed to enjoy it. Snored like a water buffalo."
"My wife always says a camel." He looked at his watch. "You've been awake for over seventy-two hours. Don't you feel it?"
"No. I'll catch up later. I've got pills here, and it's not the first time that I've pulled a long watch."
Nissim settled back on the couch and saw that Aldo was muttering figures to himself while he worked out a problem on his hand calculator. No sensation can be experienced indefinitely, he thought, even fear. We were both bloody frightened up there, but it can't go on forever.
He felt a slight tremble of emotion as he looked at the pressure gauge, but it passed quickly.
"It reads solid," Stan said, "but the height keeps shifting." There were dark smears, like arcs of soot, under his eyes, and he had been on drugs for the last thirty hours.
"It must be liquid ammonia and methane," Nissim said. "Or semiliquid, changing back and forth from gas to liquid. God knows, anything is possible with those pressures outside. Just under a million atmospheres. Unbelievable."
"I believe it," Aldo told him. "Can we move laterally and perhaps find something solid underneath us?"
"I've been doing that for the last hour. We either have to sink into that soup, or hop up again for an other drop. I'm not going to try and balance her on her jets, not with the G's we have waiting for us out there."
"Do we have fuel for a hop?"
"Yes, but I want to hold it for a reserve. We're down close to thirty percent."
"I vote to take the plunge," Nissim said. "If there is liquid down there it probably covers the entire surface. With these pressures and the wind I'm sure that any irregularities would be scoured flat in a relatively short geological time."
"I don't agree," Aldo said. "But someone else can investigate that. I vote to drop on the fuel situation alone."
"Three to nothing then, gents. Down we go."
The steady descent continued. The pilot slowed the immense weight of the Ball as they approached the shifting interface, but there was no unusual buffeting when they entered the liquid because the change was so gradual.
"I have a reading now," Stan said, excited for the first time. "It's holding steady at fifteen kilometers. There may be a bottom to all this after all."
The other two men did not talk as the drop continued, fearful of distracting the pilot. Yet this was the easiest part of the voyage. The lower they sank the less the disturbance around them. At one kilometer there was no buffeting or sideways motion in the slightest. They fell slowly as the bottom approached. At five hundred meters Stan turned over the landing to the computer and, hand poised, stood ready to take command should there be difficulties. The engines blasted lightly, cut off, and, with a single grinding thud, they were down. Stan flipped the override and killed the engines.
"That's it," he said, stretching hugely. "We've landed on Saturn. And that calls for a drink." He mumbled a complaint when he discovered that it took most of his strength to push up from the chair.
"Two point six-four gravities," Nissim said, looking at the reading on the delicate quartz spring balance on his board. "It's not going to be easy to work under all these G's."
"What we have to do shouldn't take long," Aldo said. "Let's have that drink. Then Stan can get some sleep while we start on the MT."
"I'll buy that. My job is done and I'm just a spectator until you boys get me home. Here's to us." They raised their glasses with difficulty and drank.
The burden of the more than doubled gravity had been anticipated. Aldo and the pilot changed acceleration couches so that the engineer could face the instrument panels and the MT screen. When the restraining catches were released, Nissim's couch also swung about so that he could reach the screen. Before these preparations were finished Stan had flattened his couch and was soundly asleep. The other two men did not notice: they were now able to start on their part of the mission. Aldo, as the MT specialist, made the preparatory tests while Nissim watched closely.
"All the remotes we sent down developed sigma effect before they had penetrated a fifth of the atmosphere," Aldo said, plugging in the test instruments. "Once the effect was strong enough we lost all control and we have never had an accurate track past the halfway mark. We've just lost contact with them." He checked all the readings twice and left the wave form on the scope when he sank back to rest his tired back and arms.
"The wave looks right," Nissim said.
"It is. So is everything else. Which means that one-half of your theory, at least, is correct."
"Wonderful!" Nissim said, smiling for the first time since they had begun the flight. His fists clenched as he thought of the verbal drubbings he would administer to the other physicists who had been rash enough to disagree with him. "Then the error is not in the transmitter?"
"Absolutely."
"Then let's transmit and see if the signal gets through. The receiver is tuned and waiting."
"C. Huygens calling Saturn One, come in. How do you read me?"
They both watched as the transcribed tape clicked into the face of the screen and vanished; then Aldo switched the MT to receive. Nothing happened. He waited sixty seconds and sent the message again — with the same results.