Outside, even with the aid of extra lights, the line of demarcation between the two kinds of soil was much less visible than before. Eye distance, Beetchermarlf judged, was the main cause. The crew scraped up and packaged samples of material from both sides of the line; then they went on to the stream itself. This proved to be a swift-running but shallow brook three or four body-lengths in width, its level an inch or two below the soil through which it was cutting its way. After a brief consultation, the two Mesklinites began to follow it away from the river. They had no way of telling its composition, but a bottle of its contents was secured for later testing.
By the time they reached the spot where it was curving away, even the Mesklinites could see that the stream had not been in existence very long. It was eating with visible speed into its banks, washing the sediment on toward the main river. Now that they were on the outside of its curve, the undercutting
of the near bank could be seen and even felt; Beetchermarlf, standing at the edge, felt it crumble suddenly away under him and found himself in the stream.
It was only an inch or so deep, so he took advantage of the occasion to take another sample from its bottom before climbing out. They decided to continue upstream for another ten minutes or so, with Beetchermarlf wading and Takoorch on the bank. Before the time was up they had actually found the source of the watercourse. It was a spring, not half a mile from the
Kwembly,
roiling violently in the center of its basin where an underground source fed it. Beetchermarlf, investigating the middle, was knocked from his feet and carried half a body length by the upward current.
There was nothing in particular to do; they had no camera equipment, no one had seriously suggested that they bring the vision set with them, and there was nothing obvious to be gained by collecting more samples. They returned to the
Kwembly
to give a verbal description of what they had found.
Even the scientists agreed that the best step now was to get the samples back to the camp where Borndender and his fellows could do something useful with them. The helmsmen eased their cruiser into motion once more.
It approached the stream and nosed through it; the mattress took up the slight dip as the trucks crossed the bottom of the widening valley, and nothing could be felt on the bridge.
Not for another eight seconds.
The hull was rather more than half way across the little brook when the distinction between solid and liquid began to blur. A slight lurch could be felt on the bridge; it showed on the screen far above as a tiny upward jerk of the few outside features visible.
Forward motion stopped almost instantly, though the drivers kept churning. They could accomplish nothing when completely immersed in slimy mud, which the surface had so suddenly become. There was neither support nor traction. The
Kwembly
settled until the trucks were buried; settled until the mattress was nearly out of sight; settled almost, but not quite, to the level where she would have been literally floating in the semiliquid muck. She was stopped by two of the rock outcrops, one of which caught her under the stern just aft of the mattress, and the other on the starboard side some ten feet forward of the main lock. There was an ugly scraping sound as the cruiser’s hull canted forward and to port, and then came to rest.
And this time, as Beetchermarifs sense of smell warned him only too clearly, the hull had failed somewhere. Oxygen was leaking in.
“It boils down to this,” Aucoin said from the head of the table. “We have the choice of sending down the barge, or not. If we don’t, the
Kwembly
and the two Mesklinites aboard her are lost, and Dondragmer and the rest of her crew are out of action until a rescue cruiser such as the
Kalliff
can reach them from the Settlement. Unfortunately, if we do try to land the barge there’s a good chance that it won’t help. We don’t know why the ground gave under the
Kwembly,
and have no assurance that the same thing won’t happen anywhere else in the vicinity. Losing the barge would be awkward. Even if we first landed near Dondragmer’s camp and transferred him and his crew to the cruiser, we might lose the barge and there is no assurance that the crew could repair the
Kwembly.
Beetchermarlfs report makes me doubt it. He says he has found and sealed the major leaks, but he’s still getting oxygen inside the hull from time to time. Several of his life-support tanks have been poisoned by it. So far he has been able to clean them out each time and restock them from the others, but he can’t keep going forever unless he stops the last of these leaks. Also, neither he nor anyone else has made any concrete suggestion for getting that cruiser loose from the muck or whatever it’s stuck in.
“There is another good argument against landing the barge. If we use remote, live control, there is the sixty-second reaction lag, which would make handling anywhere near the ground really impossible. It would be possible to program its computer to handle a landing, but the risks of that were proved the hard way the first time anyone landed away from Earth. You might as well give the Mesklinites a quick lesson in flying the thing for themselves!”
“Don’t try to make that last sound too silly, Alan,” Easy pointed out gently. “The
Kwembly
is merely the first of the cruisers to get into what looks like final trouble. Dhrawn is a very big world, with very little known about it, and I suspect we’re going to run out of land-cruisers for rescue or any other purpose sooner or later. Also, even I know that the barge controls are computer-coupled, with push-the-way-you-want-to-go operators. I admit that even so, the chances are ten to one or worse that anyone trying a ground-to-ground flight with that
machine on Dhrawn without previous experience would kill himself, but do Beetchermarlf and Takoorch have even that much chance of survival on any other basis?”
“I think they do,” replied Aucoin quietly.
“How, in the name of all that’s sensible?” snapped Mersereau. “Here all along we’ve—” Easy held up her hand, and either the gesture or the expression on her face caused Boyd to fall silent.
“What other procedure
which you could conscientiourly recommend
would stand any real chance of saving either the
Kwembly
herself, or her two helmsmen, or the rest of Dondragmer’s crew?” she asked.
Aucoin had the grace to flush deeply, but he answered steadily enough.
“I mentioned it earlier, as Boyd remembers,” he said. “Sending the
Kalliff
from the Settlement to pick them up.”
The words were followed by some seconds of silence, while expressions of amusement flitted across the faces around the table. Eventually Ib Hoffman spoke.
“Do you suppose Barlennan will approve?” he asked innocently.
“It boils down to this,” Dondragmer said to Kabremm. “We can stay here and do nothing while Barlennan sends a rescue cruiser from the Settlement. I assume he can think of some reason for sending one which won’t sound too queer, after he failed to do it for the
Esket.
”
“That would be easy enough,” returned the
Esket’s
first officer. “One of the human beings was against sending it, and the commander simply let him win the argument. This time he could be firmer.”
“As though the first time wouldn’t have made some of the other humans suspicious enough. But never mind that. If we wait, we don’t know how long it will be, since we don’t even know whether there’s a possible ground route from the Settlement to here. You came from the mines by air, and we floated part of the way.
“If we decide not to wait, we can do either of two things. One is to move by stages toward the
Kwembly,
carrying the life equipment as far as the suits will let us and then setting it up again to recharge them. We’d get there some time, I suppose. The other is to move the same way toward the Settlement to meet the rescue cruiser if one comes or get there on foot if it doesn’t. I suppose we’d even get
there
, eventually. Even if we reach the
Kwembly,
there is no certainty that we can repair her; if the human beings have relayed Beetchermarlf’s feelings at all adequately, it seems rather doubtful. I don’t like either choice because of the wasted time they both involve. There are better things to do than crawl over the surface of this world on foot.
“A better idea, to my way of thinking, is to use your dirigible either to rescue my helmsmen if it is decided to give up on the
Kwembly,
or to start ferrying my crew and equipment over to where she is.”
“But that—”
“That, of course, sinks the raft as far as the
Erket
act is concerned. Even using Reffel’s helicopter would do that; we couldn’t explain what happened to the vision set he was carrying without their seeing through it, no matter what lie you think up. I’m simply not sure that the trick is worth the deliberate sacrifice of those lives, though I admit it’s worth the
risk,
of course; I wouldn’t have gone along with it otherwise.”
“So I heard,” returned Kabremm. “No one has been able to make you see the risk of being completely dependent on beings who can’t possibly regard us as real people.”
“Quite right. Remember that some of them are as different from
each other
, as they are from us. I made up my mind about the aliens the time one of them answered my question about a differential hoist clearly and in detail, and threw in my first lesson in the use of mathematics in science, gratis. I realize the humans differ among themselves as we do; certainly the one who talked Barl out of sending help to the
Esket
must be as different as possible from Mrs. Hoffman or Charles Lackland—but I don’t and never will distrust them as a species the way you seem to. I don’t think Barlennan really does, either; he’s changed the subject more than once rather than argue the point with me, and that’s not Barlennan when he’s sure he’s right. I still think it would be a good idea to lower the sails on this act and ask directly for human help with the
Kwembly,
or at least take a chance on their finding out by using all three dirigibles there.”
“There aren’t three, any more.” Kabremm knew the point was irrelevant, but was rather glad of a chance to change the subject. “Karfrengin and four men have been missing in the
Elsh
for two of this world’s days.”
“That news hadn’t reached me, of course,” said Dondragmer. “How did the commander react to it? I should think that even he would be feeling the temptation to ask for human help, if we’re starting to lose personnel all over the map.”
“He hasn’t heard about it, either. We’ve had ground parties out searching, using trucks we salvaged from the
Erket,
and we didn’t want to make a report until it could be a complete one.”
“How much more complete could it be? Karfrengin and his men must be dead by now. The dirigibles don’t carry life-support gear for two days.”
Kabremm gave the rippling equivalent of a shrug. “Take it up with Destigmet. I have troubles enough.”
“Why wasn’t your flyer used for the search?”
“It was, until this evening. There are other troubles at the mine, though. A sort of ice river is coming, very slowly, but it will soon cover the whole second settlement if it doesn’t stop. It’s already reached the
Esket
and started to tip it over; that’s why we were able to salvage the trucks so easily. Destigmet sent me to follow back up the glacier and try to find out whether it is likely
to keep coming indefinitely, or was just a brief event. I really shouldn’t have come this far, but I couldn’t make myself stop. It’s this same river for the whole distance, sometimes solid and sometimes liquid along the way; it’s the weirdest thing I’ve seen yet on this weird world. There isn’t a chance of the ice’s stopping, and the
Esket
settlement is as good as done for.”
“And of course Barlennan hasn’t heard about this either.”
“There’s been no way to tell him. We only discovered the ice was moving just before dark. It was just a cliff a few dozen cables from the mine up to then.”
“In other words, we’ve lost not only my first officer and a helicopter but a dirigible with five men, and as an afterthought the whole
Esket
project, with my
Kwembly
probably on the same list. And you still think we shouldn’t end this trickery, tell the human beings the whole story, and get their help?”
“More than ever. If they learn we’re having this much trouble, they’ll probably decide we’re no more use to them and abandon us here.”
“Nonsense. No one just abandons an investment like this project; but never mind arguing; it’s a futile point anyway. I wish—”
“What you really wish is that you had an excuse for leaking the whole barrel to your oxygen-breathing friends.”
“You know I wouldn’t do that. I’m quite ready to use my own judgment in the field, but I know enough history to be afraid of making spot-changes in basic policy.”
“Thank goodness. It’s all right to like some humans, but they’re not all like the Hoffman one. You admitted that yourself.”
“What it boils down to,” Barlennan said to Bendivence, “is that we were much too hasty in sending Deeslenver to the
Esket
with orders to shutter its vision sets. The whole
Esket
question seems to have quieted down, and that will bring it to life again. We’re not ready for the main act yet, and won’t be for a year or more. I wasn’t sorry for the chance to start the human beings thinking along the lines of a native-menace idea, but Destigmet’s crew won’t be able to play the part until they have a lot more homemade mechanical and electrical equipment, things that the humans know we don’t have. Certainly, unless the native menace seems real, the human beings aren’t very likely to take the steps we want.
“If there were any way to go after Dee now and cancel his orders, I’d do it. I wish I’d dared let you go ahead with radio experiments, and had a set on the
Deedee
right now.”
“It shouldn’t be too risky, and I’d be more than glad to work on it,” answered Bendivence. “The waves could be detected by the human beings, of course, but if we confined ourselves to brief and rare transmissions and used a simple off-on code they probably wouldn’t realize what the source was. However, it’s too late to get Deeslenver, anyway.”
“True. I wish I knew why no one up there has said another word about Kabremm. The last time I talked to Mrs. Hoffman, I got the impression that she wasn’t quite as sure as before that she’d really seen him. Do you suppose she really made a mistake? Or are the human beings trying to test
us
, the way I wanted to do with them? Or has Dondragmer done something to get us off that reef? If she were really wrong, we’ll have to start thinking all over again …”
“And what about that other report we’ve heard no more of, something sliding across the
Esket’s
floor?” countered the scientist. “Was that still another test? Or is something really happening there? Remember, we haven’t had any contact with that base for over a hundred and fifty hours. If the
Esket
is really being moved by something, we’re much too badly out of date to do anything sensible. You know, without saying anything against the
Esket
act, it’s an awful nuisance not to be able to trust your data.”
“If there’s real trouble at the
Esket
we’ll just have to trust Dee’s judgment,” said the commander, ignoring Bendivence’s closing sentence. “Actually, even that isn’t the chief problem. The real question is what to do about Dondragmer and the
Kwembly.
I suppose he had good reason to leave his ship and let her drift away, but the results have been very awkward. The fact that a couple of his men got left aboard makes it almost more so; if they hadn’t been, we could just forget about the cruiser and send out the
Kalliff
to pick up the people.”
“Why can’t we do that anyway? Didn’t the human Aucoin suggest it?”
“He did. I said I’d have to think it over.”
“Why?”
“Because there is less than one chance in ten, and probably less than one in a hundred, that the
Kalliff
could get there in time to do those two men any good. The chances are small enough that she could get there at all. Remember that snow field the
Kwembly
crossed before her first flood? What do you suppose that area is like now? And how long do you think two men, competent men, but with no real technical or scientific training, are going to keep that leaking hull habitable?
“Of course, we could confess the whole act, tell the humans to get in touch with Destigmet through the watch he keeps at the
Esket’s
communicators; then they could tell him to send a rescue dirigible.”