There was a Radio Technician's Manual in the boat's book locker. Grimes got it out. Unluckily the writer of it had assumed that anybody reading it would possess at least a smattering of knowledge concerning Deep Space radio. Grimes was not such a person. He knew that the Carlotti equipment propagated signals which, somehow, ignored the normal three dimensions of Space and, by taking a shortcut of some kind, arrived at the receiving station, no matter how many light years distant, practically instantaneously. In any ship that he had been in the thing had worked. There had always been fully qualified officers to see that it worked. Had the complete boarding party been in the boat when she pushed off from Skink there would have been such an officer among her crew. (But, thought Grimes, had he taken the full boarding party with him he would not have been alone with Una.)
He and the girl puzzled over the text and the diagrams. They could make neither head nor tail of the latter, but they discovered that printed circuit tray #3 of NST transceiver Mark VII could be substituted for tray #1 of Carlotti transceiver Mark IVA, and so on and so on. It began to look as though Una's idea would work.
Before commencing operations he started up the inertial drive. He was not, as yet, going anywhere in particular, but physical work is more easily carried out in a gravitational field—or under acceleration—than in free fall conditions. Then, with Una assisting, he pulled the circuit trays out of the Carlotti set. Number one, obviously, would have to be replaced. That presented no problem. Number two was obviously nonfunctional. Number two from the NST transceiver was the recommended substitute. Number three appeared to be undamaged. Number four was in almost as big a mess as number one—and none of the NST circuits could be used in its stead.
So, soldering it had to be.
Grimes carried the tray to the little workshop that shared space with the boat's power plant and propulsive units, put it on the bench. He had the Manual open at the proper page, thought that he would be able to patch things up. He was a messy solderer and soon discovered that clothing is worn for protection as well as for adornment or motives of prudery. Una—who was annoyingly amused—applied first aid; then Grimes got into his longjohns before continuing.
When he was finished—a few hours and several burns later—the tray still looked a mess, but Grimes was reasonably confident that the circuits were not anywhere shorted. He carried the tray back to the transceiver—which had been set up in its proper position—and slid it carefully into place. He switched on. The pilot lights lit up. There would be neither transmission nor reception, however, until the antenna was remounted and operational.
They had a hasty meal, then returned to the workshop. The antenna was a metal Moebius Strip, oval rather than circular, on a universal bearing which, in turn, was at the head of a driving shaft. The shaft had been snapped just below the bearing, and the antenna itself had been bent out of its elliptical configuration. Fortunately there was among the motor spares a steel rod of circular section and exactly the right diameter. It had to be shortened by about five centimeters, but with the tools available that was no hardship. The broken shaft was removed from the transceiver, the new one shipped. The antenna—back in shape, Grimes hoped—was, on its bearing, secured to the projecting end of the shaft with a set screw.
"Will it work?" asked Una skeptically. "There's only one way to find out," Grimes told her. He switched on again, set the Direction Finding controls to hunt. In theory (and, hopefully, in practice) the aerial array would now automatically line up on the strongest incoming Carlotti signal.
The shaft began to rotate slowly, the Moebius Strip antenna wobbled on its universal bearing. It seemed to be questing as it turned. Abruptly it steadied, although still turning about its long axis. From the speaker came not the Morse sequence of a Beacon but something that sounded like somebody speaking. It was in no language that either of them knew, and the voice did not sound human. Suddenly it stopped, but Grimes had noted relative bearing and altitude.
He looked at Una, his eyebrows raised. She looked at him dubiously.
"Something . . ." he said slowly.
"Not . . . somebody?"
"All right. Somebody. Somebody capable of constructing—or, at least, using—Deep Space communications equipment."
"Should we put out a call now that this contraption's working?"
"No," he decided. He laughed harshly. "I like to see whom I'm talking to before I talk to them. We'll let the direction finder go on hunting for a while. Maybe it will pick up something a little more promising . . . ."
But it did not.
At intervals of exactly twenty-three minutes and fourteen seconds it steadied on the transmission in the unknown language, on the same relative bearing.
Grimes remembered an engineer officer in a big ship in which he had served as a junior watchkeeper. He had watched this gentleman while he overhauled the mini-Mannschenn of one of the cruiser's boats. It had been a job requiring both patience and a remarkably steady hand. After a spindle had slipped out of its bearing for the fifteenth time the specialist had sworn, "Damn it all, I'm an engineer, not a bloody watchsmith!" He then went on to say, "The ship's Mannschenn Drive unit, with all its faults, is a machine. This fucking thing's only an instrument!" He told the little story to Una. She said, "That's no excuse. Somebody assembled it once. You can assemble it again. Nothing seems to be damaged. It's just a question of getting all the rotors turning and precessing freely."
"Quite simple, in fact."
"Quite simple," she said, ignoring the sarcasm.
"Perhaps you'd like to try."
"I'm a policewoman, not a watchsmith."
"Ha, ha. Now . . . . Get in there, damn you!" Click. "That's it."
"You've a little wheel left over," she pointed out. "And you'll have to remove the one you just got in to get it back."
"Not if I precess it . . . so . . . ."
"One of the other rotors has fallen out now." Then she went away and left him to it, and without his audience he got along much better. At last the reassembled mini-Mannschenn was ready for use. It looked like a complex, glittering toy, an assemblage of tiny, gleaming flywheels, every axle of which was set at an odd angle to all of the others. Once it was started the ever-precessing, ever-tumbling rotors would drag the boat and its crew down and through the dark dimensions, through a warped continuum in which space and time were meaningless concepts. He touched one of the rotors tentatively with a cautious forefinger. It spun on its almost frictionless bearings and the others turned in sympathy. Although there was, as yet, almost no precession, the shining wheels glimmered and winked on the very edge of invisibility.
He called out, "We're in business!"
"Then get the show on the road," retorted Una. "We've been sitting here on our arses, doing sweet fuck all, for too bloody long!"
Grimes used the single directional gyroscope to line the boat up on the last bearing from which the mysterious call had come. Then he switched on the mini-Mannschenn. To judge from the brief temporal disorientation, the sensation of déjà vu, the thing was working perfectly.