foreboding, and, indeed, of physical as well as psychological discomfort, had come over him. He suddenly recalled—and this did nothing at all to help—a phrase he had once come across: “Someone is walking over your grave.”
At first, he shrugged it off, and continued his steady pedaling. He certainly had no intention of reporting anything as tenuous as a vague malaise to Hub Control. But as it grew steadily worse he was tempted to do so. It could not possibly be psychological; if it was, his mind was much more powerful than he realized. And he could, quite literally, feel his skin beginning to crawl.
Now seriously alarmed, he stopped in mid-air to consider the situation. What made it all the more peculiar was the fact that this depressed, heavy feeling was not completely novel; he had known it before, but could not remember where.
He looked around him. Nothing had changed. The great spike of Big Horn was a few hundred meters above, with the other side of Rama spanning the sky beyond that. Eight kilometers below lay the complicated patchwork of the southern continent, full of wonders that no other man would ever see. In all the utterly alien, yet now familiar, landscape, he could find no cause for his discomfort.
Something was tickling the back of his hand. For a moment, he thought an insect had landed there, and brushed it away without looking. He had only half completed the swift motion when he realized what he was doing and checked himself, feeling slightly foolish. Of course, no one had ever seen an insect in Rama….
He lifted his hand, and stared at it, mildly puzzled because the tickling sensation was still there. It was then that he noticed that every individual hair was standing straight upright. All the way up his forearm it was the same—and so it was with his head, when he checked with an exploring hand.
So that was the trouble. He was in a tremendously powerful electric field. The oppressed, heavy sensation he had felt was that which sometimes precedes a thunderstorm on Earth.
The sudden realization of his predicament brought Jimmy near to panic. Never before in his life had he been in real physical danger. Like all spacemen, he had known moments of frustration with balky equipment, and times when, because of mistakes or inexperience, he had wrongly believed he was in a perilous situation. But none of these episodes had lasted more than a few minutes, and usually he was able to laugh at them almost at once.
This time there was no quick way out. He felt naked and alone in a suddenly hostile sky, surrounded by titanic forces that might discharge their furies at any moment. Dragonfly—already fragile enough—now seemed more insubstantial than the finest gossamer. The first detonation of the gathering storm would blast her to fragments.
“Hub Control,” he said urgently, “there’s a static charge building up around me. I think there’s going to be a thunderstorm at any moment.”
He had barely finished speaking when there was a flicker of light behind him; by the time he had counted ten, the first crackling rumble arrived. Three kilometers—that put it back around the Little Horns. He looked toward them and saw that every one of the six needles seemed to be on fire. Brush discharges, hundreds of meters long, were dancing from their points, as if they were giant lightning conductors.
What was happening back there could take place on an even larger scale near the tapering spike of Big Horn. His best move would be to get as far as possible from this dangerous structure, and to seek clear air. He started to pedal again, accelerating as swiftly as he could without putting too great a strain on Dragonfly. At the same time he began to lose altitude; even though this would mean entering the region of higher gravity, he was now prepared to take such a risk. Eight kilometers was much too far from the ground for his peace of mind.
The ominous black spike of Big Horn was still free of visible discharges, but he did not doubt that tremendous potentials were building up there. From time to time the thunder reverberated behind him, rolling round and round the circumference of the world. It suddenly occurred to Jimmy that it was strange to have such a storm in a perfectly clear sky. Then he realized that this was not a meteorological phenomenon at all. In fact, it might be only a trivial leakage of