The Germ Growers: An Australian story of adventure and mystery by Robert Potter (books you have to read .TXT) 📕

When we saw the light settle down before the door it was about eight o’clock, a little more than two hours after sunset. It was very cloudy but not absolutely dark. We turned our steps at once toward the stair. We had no expectation of any difficulty just yet. The watch which was kept upon us during the night was effectually neutralised; for the watchers, no doubt, supposed that we were safely housed, and that we could not stir without betraying our movements to them. Nevertheless, we walked very softly and spoke almost nothing until we reached the summit of the stair. Then we stopped and held a very brief conference. There were various points of detail as to which it was needful that we should understand one another more perfectly. But after glancing at them it seemed better [234] that we should make a start first, and then we could converse without losing time.

So we hurried along the platform to the car. It was on the very spot where we saw it first, on the evening when we made our first voyage in it. Everything was ready. One battery was in position, and another lay by it ready to take its place. There was a pocket on one side of the car filled with the lozenge-like articles of diet on which we had lived since we came here. There were two glasses like that with which I had observed the seed-beds, and Jack, after examination, pronounced that there was an abundant store of the matters required for the production of the gas which was needed for the inflation of the balloons. The light by which we saw all this stood in the fore part of the car just over a little binnacle where a compass was fixed. Leäfar had more than fulfilled his promise.

I had noticed before in the cars a framework like this in which the compass was housed, but it never struck me what it was for. The compass card was very like ours. It had sixteen points only instead of thirty-two, and these were distinguished by colours and combinations of colours. The light was no doubt electric, for it was to all appearance produced by a [235] battery acting on a system of wires. The wire did not seem to consume very rapidly, and it was supplied by automatic machinery from a large coil fixed under the binnacle. I have said “no doubt electric.” I ought to add that the machinery which produced the light had no perceptible effect on the car’s compasses nor yet on mine.

As soon as we got into the car Jack proceeded to raise it, as Niccolo Davelli had done, by inflating the balloons. This cannot be quickly done by any but a practised hand. If one who has had no practice tries it, the balloons are apt to get unequally inflated, and so the operator in bringing them every now and then to a state of equal inflation works the car from side to side with a rolling motion. Signor Davelli raised it quickly, without any rolling motion at all. This was only the second day of practice for Jack, but he managed by raising the car slowly to produce very little of the rolling motion.

As soon as he had attained what he judged a sufficient height he connected the batteries with the paddles, and as the wind was, as the sailors say, “dead aft,” we soon began to make very great speed.

I noticed now a point in the machinery which I had not observed before. There was a valve to each balloon, [236] and both valves were worked by a sort of movable tap, one tap for both. The effect of these valves appeared to be the maintenance of the cars at a uniform height, or higher or lower as the driver wished. The tap was worked by the same machinery that drove the paddles. And if the driver for any reason wished to make the balloon act independently of the paddles he could disconnect the tap which worked the valves from the machinery which worked the paddles. The connection and disconnection was made by a handle within easy reach of the driver.

After we had got well under way Jack began to speak.

“Now, Bob,” he said, “do you think that you can steer while I speak? I have something to say. Here is the handle that you steer by: you see it is fixed so that you pull the way you want to go. That bright blue mark on the compass is East. Never mind the balloons, I will attend to them if there is need. You will have nothing to do but just keep the head of the car due east.”

I found but little difficulty in managing the car as he directed, and after about twenty minutes’ practice I was able to steer and listen at the same time.

Then Jack began, in a business-like manner, “You [237] have seen the battery that we are driving by now; very well, here is the spare battery which, according to Leäfar’s promise, I find.” He pointed to the spare battery, which was placed on a sort of bracket within my sight. He took it off, or rather out of, the bracket with his two hands and put it back again.

“I see,” said I, “that it is larger; it seems heavier than the other, and in some details different: what of that?”

“Thereby hangs a tale,” he said. “I have not been able to learn anything about the way of making these batteries. Indeed, I did not try; there was no time to spare from the more urgent matters. What I have learned is that they have two kinds of battery, one much more easily made and which wastes very much more quickly, but which drives the cars faster while it lasts. That is the sort that we are using now. The other sort is more difficult of production and wastes very much more slowly, and drives the cars more slowly. On long voyages, as I understand, they use the latter sort mainly, reserving the former sort for short voyages and for spurts. Now the spare battery is of the sort that wastes more slowly and drives the car more slowly; whereas it is a battery of the other sort that has been put into operation, what does that [238] mean? I don’t know how Leäfar got the batteries, and I don’t know what he knows about their use. I think it would not be safe to assume that he is beyond the risk of making mistakes. They have to learn things just as we have.”

“He got the battery for us,” I replied, “and it seems the safer thing to conclude that he knows more about it than we do. But what does it matter any way?”

“I’ll tell you as near as I can. Don’t mind a bit of rigmarole or what seems to be such. Trust me for coming to the point all the time.”

“Go ahead,” said I.

“Very well,” he said, “I want to know, or to make as near a guess as possible, at two or three things.

“(1.) How fast are we going now, and how far are we from the wire? or how far were we when we started? That means, how soon shall we reach the wire?

“(2.) What are we to do if we overshoot the wire? We have no way of telling the longitude; my watch indeed is a capital chronometer, but I have altered it by the sun two or three times as near as I could. Besides, we cannot get the sun’s place near enough. Now, if we overshoot the wire, we shall either have to cross the continent or else to make southward and look [239] out for the Darling or for the Murray; or, failing either, for the sea.

“I do not think that we can have made much more than three hundred miles of westing from the Daly Waters, and suppose that we are now travelling at the rate of thirty miles an hour, which is not unlikely, we ought, if we keep up the rate, to make the wire at seven or eight o’clock in the morning. If I have overrated the distance or underrated our speed only a little, we may cross the wire before sunrise.

“So far, then, it seems clear to me that we ought to be travelling at the slow rate instead of the quick rate. I thought of this before, but I saw no means of securing one of the larger batteries, and I knew that I could slow the speed of the smaller one.

“Why don’t I slow it now? you will say. Well, because I found the smaller and quicker battery put on, although the other was there: why was it put on unless to use all possible speed? I cannot but think that Leäfar considers the prospect of pursuit so great that speed is in his view the first necessity. I may be wrong, but, somehow, this view of the case makes me unwilling to slow the machinery.”

“I think you are right,” I said; “still it is quite possible that there may be nothing in it. The workers [240] whom Leäfar employs may have been simply bidden to secure the batteries, and to put one of them on; the difference between the batteries may have been altogether overlooked.”

“It may be so,” he said, “and one must not overlook the possibility, but I don’t think it likely.”

“Then you see something in the presence of the larger battery?”

“That’s it,” he said. “If only the voyage to the wire were in view a second one of the smaller batteries would have given us an ample margin for contingencies. I think that the chance of our overshooting the wire has been reckoned upon, and for that