Seeing their emotion, Forster realized he might have gone a tad too far; he’d had his little joke, after all. “I can tell you at once, Ms. Mitchell—Bill knows this already, which is why he is justly angry with me— that Randolph Mays is in no more danger than we are. We can go and collect him whenever we like.”
“Then you
did
lie to me,” she said instantly. “No, I certainly did not.
Mays
has lied to you repeatedly, but what I told you was the truth. Granted, you jumped to the wrong conclusions. So did Bill here, until I explained it to him—his outrage on your behalf, and on Mays’s, was quite genuine, and I doubt we could have restrained him had we not convinced him that we were telling the truth.”
Despite himself, Forster flinched. “Yes, well . . . when I said that a body would take ninety-five minutes to fall from here to Jupiter, I omitted—not accidentally, I confess—a rather important phrase. I should have added, ‘a body at rest with respect to Jupiter.’ But we are not at rest with respect to Jupiter. Sir Randolph shares our orbital speed, which is about, mm, twenty-seven kilometers per second.”
She was quick even when the ideas were strange, so the moral force of her anger was slightly sapped by a suspicion of what Forster would say next; the best she could do was display her contempt for his selfsatisfaction. “To hell with your numbers. Will you for God’s sake get to the point?”
“Mm, yes, as you say.” Remarkably he was looking al-most sheepish by now. “We did throw him completely away from Amalthea, toward Jupiter. But the extra velocity we gave him was trivial; he’s still moving in practically the same orbit as before. The most he can do, computer says, is drift about a hundred kilometers inward. In one revolution, twelve hours or so, he’ll come right back where he started. Without us having to do anything at all.”
Marianne locked eyes with the professor. To the other two watchers on the flight deck, Walsh and Hawkins, there was no doubting the meaning of the exchange: Forster was ashamed of himself, but defiant, for he believed that what he had done needed doing; Marianne was relieved, but frus-trated and annoyed at having been duped.
“That’s why I wouldn’t let you talk to him, yes,” Forster admitted. “As for his sophistication with orbital mechanics, I warned you of that myself. Indeed, Sir Randolph was so confident of his ability in that regard that he risked your life without compunction.”
Hawkins steadily returned her accusing gaze. “What the professor hasn’t told you, Marianne, is that Mays tried to murder us all. And made you his accomplice. You two didn’t knock us out for just a few minutes; you gassed us good. Then he set the ship to drift into the radiation belt.”
“So long as someone’s awake to administer the cure. You two dosed us to keep us unconscious for a long time, too long to save ourselves after we woke up. He kept you alive to support his story—but he made sure you wouldn’t really witness a thing.”
“He didn’t bother, of course,” said Forster. “I gave your map to Blake to put under seal with the rest of the evidence against him. Mays told you an involved tale so that
you
would send him back here to the
Ventris
. It was all your idea, Marianne.
You
are the guilty party; the innocent Sir Randolph Mays would never have done it on his own. Or so he would have told the Space Board.”
McNeil and Groves closed on Mays an hour after Forster told them to retrieve him; he was only twenty kilometers up, and they located him without too much trouble by tracking the radio beacon on his suit, which they’d left intact when they disabled his suit-comm. His radiation ex-posure would be no worse than that of his rescuers.
Of the two crewmen, quick little Tony Groves was more inclined to play Mercurius, the psychologist; it seemed to him that something had gone out of Sir Randolph Mays, some dark force of resistance, for he came down with them very listlessly out of the bronze-colored, Jupiter-dominated sky.
It occurred to the navigator to suggest to Professor For-ster, that famous rationalist, that now would be a good time to question Mays more closely. Perhaps the historian-journalist was willing to admit, if not defeat, something closer to the unvarnished truth about himself.
First they had to get back to the
Michael Ventris
, a barely visible speck of light alongside the glowing fluff-ball of Amalthea, which was virtually plummeting through the night, visibly shifting against the background of fixed stars.
Even as they watched, diving full speed toward the sat-ellite on their suit maneuvering systems, Amalthea’s aspect changed. The last of the icy husk melted into hot water, and the last of the hot water boiled away in a flash. A rapidly dissipating whiff of vapor slid away, ever so slowly, like the silk scarf of a magician lifting in interminable slow motion and with exquisite grace, to reveal—
“Twenty minutes,” Marianne exclaimed softly. She looked about as if someone could save the situation. But Forster and the captain were staring at the blank videoplate as if by force of concentration they could see Sparta on it. Hawkins was chewing his lip, looking at Marianne help-lessly. Even Blake, whose normal impulse in emergencies was to go out and blow something up, stood glumly by, inactive.
“Sorry, sir, give me a moment”—Walsh interrupted For-ster’s reply with a hired captain’s diplomatic firmness, which under her politeness brooked no contradiction—“I’ll be get-ting the ship underway, alerting the men. You and Inspector Troy can carry on your debate again shortly.” Walsh busily communed with the computer of the
Ventris
—it was a bit more work than usual to get the ship started without the help of her engineer—and programmed it to head for the equator of the diamond moon. “Better strap in, sir. Blake, please take the engineer’s couch. Ms. Mitchell, Mr. Hawkins, down below, please. Secure for course adjust-ment.”
A moment later the maneuvering rockets went off like howitzers, hard enough and loud enough to give them all headaches. The
Ventris
curved smartly inward, toward the black hole that was even then spiraling open in the side of the glistening worldship.
“Well, Mr. Engineer, I’ve just run a rather preliminary estimate on my sleeve”—he tapped the computer locator pad on his suit’s forearm—“and it puts us in a bit of a bind. To make the vector change, we’ve got to save what fuel we’ve got. But if we save what we’ve got, we arrive, oh, a tad late.”
The
Ventris
entered the huge dome originally explored by Forster and Troy in the Manta submarine. Its cathedral-like space was a filigree of ink and silver, drawn with a fine steel needlepoint—for it was full of vacuum now, not water, and its intricate architecture was severely illuminated by in pouring Jupiter light.
The
Ventris
was aligned so that it was parallel to the axis of the world-ship, pointed in the direction of what they had called the south pole. On the flight deck, what feeble gravity there was tended to draw people to one wall instead of the floor, but the force was so slight that the sensation was not so much like falling as drifting sideways in a slow current.
“If there were the slightest chance”—Walsh was rigid; two of her long-time companions, her oldest friends, were among the men she proposed to abandon—“but there is not. Run the numbers, if you like. Please prove me wrong.”
Walsh turned to the console and tapped numbers into the computer manually; it was not the sort of thing you told the machine to do in voice mode. The numbers came back, and the potential trajectories were graphically displayed.
Walsh and the rest of them stared at the plate. “Well,” she said, “let’s hope that when the idea occurs to them, they’re less squeamish than . . . than I am.”