Heavy Planet (28 page)

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Authors: Hal Clement

BOOK: Heavy Planet
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Besides, it was not likely that anything at all could be done about the missing balloonists until the
Bree
could be brought ashore and rigged again. Even then, it was far from clear just
what
could be done. The most obvious technique, searching among and under the fallen rocks, was unpromising even if there were some way of telling where to start the search.
Come to think of it, there was a way for that. Barlennan had described in a good deal of detail the area downstream from the point where the eddy started. The point should still be there, and maybe even the eddy. If necessary, they could leave the ship where she was and search as a climbing or a swimming parry.
Under the rocks? Well, maybe.
Kentherrer’s voice had faded, but could still just barely be heard. The party must be coming back. It seemed to the mate better to wait until they arrived, rather than attempt a three-cornered conversation through the echoes.
He felt just a little foolish when Felmethes went overboard and began talking in an ordinary voice, submerged, first to Kentherrer and then, only a little louder, to the downstream party. He hadn’t heard, or at least distinguished, the message from the latter saying that they were going to submerge; but that, by his standards, was no excuse for not remembering that words could be made out much farther in methane than in air.
He had had no experience with complex echoes under the surface, and it would be a long time before he knew about the speed/wavelength relation and such phenomena as diffraction, but Dondragmer went overboard anyway, and listened to the conversation for a moment. The downstream party was indeed on the way back. He joined in loudly.
The group had made out and acknowledged his order to get the communicator. Then another pattern of hoots, as blurred and devoid of meaning as the first sounds in air along the rocks, interfered with the conversation.
Words were indistinguishable. So were individual voice patterns. But the one other party under Dondragmer’s orders
should
be on land, and a quick flow to the
Bree
’s deck and back into the methane—Mesklinite hearing was not confined to any one part of the body surface—made it obvious that this noise too was originating in liquid. The same body of liquid which was flowing along the face of the rock fall.
And into it. The sound must be coming from the captain’s group. At least one of them was alive.
Barlennan could make out neither words nor individual voices either, but the leading fringe of the noise pattern, before the echoes ruined its structure,
left him no doubt that it was a
voice.
He didn’t have to think. Words or no words, if he could hear the speakers, they should be able to hear him. If they heard him, they would know he was still alive. If they knew he was alive, they wouldn’t give up on him and his party. He and his men were as good as rescued.
Except, of course, for minor factors such as how anyone could find them in this lightless maze where sounds came from all possible directions at once, that they had practically no food with them, and were in about the last place on Mesklin where anything edible could be expected to turn up unless it were washed in from outside.
Come to think of it, why shouldn’t food wash in from outside? There were plenty of fish in the river, and the current was coming from that direction. Why were they lying here hungry instead of fishing? Well, they couldn’t see, of course, and you can’t hear fish—but it was something to think about. Hard. He ordered his men to think about it, and went back to the basic problem.
Barlennan’s group knew, in a sense, where they were; the inertial tracker was readable. But there was no way to get its readings to anyone else; if the radio was blocked as it seemed to be, the tracker’s signals to Toorey must be equally unreadable to the Flyers. The echoes in the maze ruined any highvolume talking even if Dondragmer knew he was alive, and what else could lead rescuers close enough for quiet, echo—free talk? The captain could think of nothing. Could the mate, or the Flyers?
Jeanette didn’t need to relay Dondragmer’s report to the other Flyers; enough people were already with her in the com room. The relief that the captain might still be alive and sane—however garbled, the sound had been brief and seemingly better then raving—was tempered by the same doubts that Barlennan himself felt. Could that noise source be found? Could Mesklinites deliberately search, personally or otherwise, the maze under the rock fall? How long could the captain and his people live and remain sane to be rescued? On a more cold-blooded level, could the tracker be salvaged if he didn’t?
The Drommian who voiced this question had the grace to show embarrassment, but even the human and other beings present couldn’t dismiss the thought completely from their minds. There were still Mesklinites at work salvaging the rocket contents, but there were no more trackers.
Dondragmer thought of that aspect very fleetingly, and only to wonder about and dismiss at once the chance of using the tracker somehow to find its holders. It seemed far more practical to examine the area where the basket had disappeared. There might be meaningful clues among the rocks.
He left a watch of four men on the
Bree,
and with everyone else not at the rocket set out upstream, carrying the radio. Some of the group had been sent that way earlier, and the rest did not catch up with them until reaching the point level with the eddy, days later. From this position they could see much farther up-stream, and the balloon bag which had been caught and separated from the basket was easily visible. The mate sent half a dozen sailors to salvage
it, and with the rest took to the river, swimming across below the eddy and spreading along the foot of the tumbled fragments to look for other traces.
There didn’t seem to be any. If the basket had brushed against anything on the way inside, either nothing had scraped off or, if it had, had vanished down river. The loudest possible hoot in air brought no response from the rocks, but when it was repeated from below the surface it was answered at once, more loudly than before. Several of the sailors muttered satisfaction; but all fell silent when they saw the mate looking thoughtfully into the widest of the gaps where methane was still flowing in.
The eddy seemed as strong as the captain had reported. He had said nothing about the speed of flow into the rocks, but all could see that it was faster than anyone could be expected to paddle anything. It didn’t seem faster than a person could swim, but if one were too far inside to see daylight there would be no way of knowing which way to swim.
“They’re in there somewhere,” the mate said slowly. No one disagreed; no one said anything.
“Kentherrer, use a safety line and check how deep it is here. Don’t go inside. Three of you, hold his line.” He paused until Kentherrer was submerged. “Tell me if you have any trouble holding on,” he added. He did not specify whether this meant to the rope or to the rock, and the sailors didn’t ask.
The line was paid out for about four body lengths before it went slack. It was not pointing straight down; the swimmer had been carried a short distance into the cleft by the current, but seemed calm enough when he reappeared.
“The bottom hasn’t any of that slush,” he reported. “It seems to be sort of gravel. I suppose really fine stuff would be carried inside.”
“Could you get good footing on it?” Dondragmer asked.
“Not—not very good, sir.”
The mate and the crew knew each other’s thoughts perfectly well. The former made some allowances for the objectivity of Kentherrer’s report.
“We’d probably be safe enough, if we roped together. If anyone lost grip on the bottom, the others could hold him until he got it back. I don’t—see—anything to do but—go in and search.”
“Under all that?” one of the men asked before he could control himself. Dondragmer was silent for perhaps a minute. He was reasonably sure they would follow him if he went first, but wasn’t quite sure he could lead. Not there.
“You may have something,” he said at last. “
Under
it, in the dark, there’d be no way to tell where we were going or where we’d searched already. But
over
it—”
By ordinary Mesklinite standards,
over
was little better than under. One could fall, of course, with a couple of hundred times Rim weight. But this was the
Bree’s
crew, who had been getting used to
up
and
over
in various ways for something like a hundred thousand days now.
Over
just wasn’t as bad.
One of the sailors was sent back to the radio to tell the Flyers what the mate had in mind, and to relay any later messages. In a couple of days the mate and his remaining men were linked in a network of cordage, no one closer than eight body lengths to any other, and no one connected to others by less than four separate safety lines. The climbing was clearly not going to be easy or quick, but it would be as safe as the mate could arrange.
Mesklinite legs are extremely short and their feet are not adapted for climbing, but they grip well on any reasonably rough surface. They have evolved for low as well as high gravity, and in the low-gravity latitudes there is always the risk of being blown away.
These rocks were rough, in most places. The joints along which they had separated in the recent fall were not, for the most part, slickensides. Travel over them was fairly easy, except for the distraction of looking down so much of the time. Not even the sailors were totally immune to that fear.
The rope spiderweb began to flow up and over the fallen slabs. Once all were away from the methane, Dondragmer ordered them to clamber horizontally upstream to the point where the eddy current went straightest into the maze. This served two purposes; it made it likely that they were upstream from wherever the captain might be, and could search downstream with reasonable certainty of passing him—whether they knew it or not. Also, it gave some practice in climbing before getting too far
up
.
It even gave some practice in falling. Twice one of the sailors lost his grip and found himself hanging from a set of ropes. Both times a hoot of alarm was cut off sharply as the faller realized he was being supported, and managed to control his emotion with his intelligence. Most encouraging of all, neither time did anyone on the other end of the ropes lose his grip.
So they started uphill. The rocks were noticeably cooler now. Even with the fog, there was little trouble keeping direction. Each time the web had moved about twice its own width the climbers paused and called loudly. After some days, they reached the top of the slope and were against vertical rock again; they moved a couple of web diameters downstream, and started down again.
Every few days they called across the river to report their lack of result to the Flyers. They could make out the voice of the sailor on watch there clearly enough, but he had trouble untangling their words from the echoes. The messages, however, were simple enough—“Nothing yet” as a rule—and there was no real confusion.
Back at the bottom, still fastened together, they swam back across to the radio, reported in more detail, then rested and went hunting and fishing. Fed as well, they returned to the up-and-down coverage of the fall.
Every so often, an undermethane call was made; it was always answered by a sailor at the methane’s edge. Dondragmer wondered more and more seriously as the days went on what the lost group was doing for food. He was even slower
than the captain in thinking of possible fish, but when he did, was much faster in realizing the problems of fishing in the dark. There had been very little food on the balloon, and it had been many days, now.
It was the food question which decided Barlennan to take some action of his own. Fish either weren’t around or were able to sense groping chelae, and there had been no fishhooks aboard the balloon. He realized that any information the others might have about his location would be invalidated if they left it, but being found dead of starvation seemed a more serious risk. Besides, he could see no way of the crew’s having any such information. He had also realized that there should be no trouble in deciding which way to go, if they went; not only did the tracker provide a clue, but the current was still flowing past them, apparently unchanged. If they could travel against it, they should sooner or later reach the river.
Unfortunately, while it was not flowing nearly as fast as any of them could swim, it was just in the wrong direction, and their own personal strength was failing—not seriously yet, because they’d been simply lying in the basket and occasionally answering what were presumably the mate’s calls, but swimming against a current …
Even
crawling
against a current …
Crawling would be better, if they could keep hold of the bottom. Better still, if they could anchor themselves to the bottom. The radio and the tracker would help with that, and should be brought along in any case. A few rocks would hold the basket down; but they couldn’t drag the whole basket against the current, whether it were ballasted or not.
So they’d salvage material from the basket and, as well as they could in the dark, make a container to carry a few rocks. It might not work out; basketweaving in the dark did not promise well; but it was better than starving passively.

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