A Case of Conscience

"I have a surprise for you," he told them. "We've just completed the new telescope — six hundred feet in diameter, all of sodium foil, perched on top of Mount Piton a few hundred miles north of here. The relay cables were brought through to Stadius yesterday, and I was up all night testing my circuits. They have been made a little neater since you last saw them." This was an understatement. The breadboard rigs had vanished entirely; the object the count was indicating now was nothing but a black enamel box about the size of a tape recorder, and with only about that many knobs.

"Of course to do this is simpler than picking up a broadcast from a transmitter that doesn't have CirCon, like the Tree," the count admitted. "But the results are just as gratifying. Regard." He snapped a switch dramatically. On a large screen on the opposite wall of the dark observatory chamber, a cloud-wrapped planet swam placidly.

"My God!" Michelis said in a choked voice. "That's — is that Lithia, Count d'Averoigne? I'd swear it is."

"Please," the count said. "Here I'm Dr. Petard. But yes, that's Lithia; its sun is visible from the Moon a little over twelve days of the month. It's fifty light-years away, but here we see it at an apparent distance of a quarter of a million miles, give or take ten thousand — about the distance of the Moon from the Earth. It's remarkable how much light you can gather with a six-hundred-foot paraboloid of sodium when there's no atmosphere in the way. Of course with an atmosphere we couldn't maintain the foil, either — the gravity here is almost too much for it."

"It's stunning," Liu murmured.

"That's only the beginning, Dr. Meid. We have spanned not only the space, but also the time — both together, as is only appropriate. What we are seeing is Lithia today — right now, in fact — not Lithia fifty years ago."

"Congratulations," Michelis said, his voice hushed. "Of course the scholium was the real achievement — but you threw up an installation in record time, too, it seems to me."

"It seems that way to me, too," the count said, taking his cigar out of his mouth and regarding it complacently. "Are we going to be able to catch the ship's landing?" the UN man said intensely.

"No, I'm afraid not, unless I have my dates wrong. According to the schedule you gave me, the landing was supposed to have taken place yesterday, and I can't back my device up and down the time spectrum. The equations nail it to simultaneity, and simultaniety is what I get — neither more, nor less."

His voice changed color suddenly. The change transformed him from a fat man delighted with a new toy into the philosopher-mathematician Henri Petard as no disclaimer of his hereditary title could ever have done.

"I invited you to hold your conference here," he said, "because I thought you should all be witnesses to an event which I hope profoundly is not going to happen. I will explain:

"Recently I was asked to check the reasoning on which Dr. Cleaver based the experiment he has programmed for today. Briefly, the experiment is an attempt to store the total output of a Nernst generator for a period of about ninety seconds, through a special adaptation of what is called the pinch effect.

"I found the reasoning faulty — not obviously, Dr. Cleaver is too careful a craftsman for that, but seriously, all the same. Since lithium 6 is ubiquitous on that planet, any failure would be totally disastrous. I sent Dr. Cleaver an urgent message on the CirCon, to be tape-recorded on the ship that landed yesterday; I would have used the Tree, but of course that has been cut down, and I doubt that he would have accepted any such message from a Lithian had it not been. The captain of the ship promised me that the tape would be delivered to Dr. Cleaver before any of the remaining apparatus was unloaded. But I know Dr. Cleaver. He is bullheaded. Is that not so?"

"Yes," Michelis said. "God knows that's so."

"Well, we are ready," Dr. Petard said. "As ready as we can be. I have instruments to record the event. Let us pray that I won't need them."