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Making sure that all the Bree’s crew had returned aboard, he restarted the tank and resumed the eastward journey. The hills grew higher in the next few days, and twice they crossed streams of methane, fortunately so narrow that the sled could actually bridge them. It was well that the rise in the hills was gradual, for there was a little uneasiness among the sailors whenever they had to look down any distance; but that, Barle
And then, some twenty days after the start of the second lap of the journey, their minds were taken completely off the terrors of height by something which seized and froze the attention of every living being on both vehicles.
VII: STONE DEFENSE
Up to this time, most of the hills had been gentle, smooth slopes, their irregularities long since worn off by weather. There had been no sign of the holes and crevasses which Lackland somewhat feared before starting. The hilltops had been smoothly rounded, so that even had their speed been much higher the crossing of one would hardly have been noticed. Now, however, as they topped such an acclivity and the landscape ahead came into view a difference in the next hill caught every eye at once.
It was longer than most they had crossed, more a ridge across their path than a mound; but the great difference was in the top. Instead of the smooth, wind-worn curve presented by its fellows, it seemed at first glance actually jagged; a closer look showed that it was crowned with a row of boulders spaced with regularity that could only mean intelligent arrangement. The rocks ranged from monstrous things as big as Lackland’s tank down to fragments of basketball size; and all, while rough in detail, were generally spherical in shape. Lackland brought his vehicle to an instant halt and seized his glasses — he was in partial armor, but was not wearing the helmet. Barle
„What is it, Charles? Is that a city, such as you were telling me about on your own world? It doesn’t look very much like your pictures.”
„I was hoping you could tell me,” was the answer. „It certainly is not a city, and the stones are too far apart for the most part to be any sort of wall or fort that I could imagine. Can you see anything moving around them? I can’t with these glasses, but I don’t know how keen your eyesight is.”
„I can just see that the hilltop is irregular; if the things on top are loose stones, I’ll have to take your word for it until we’re closer. Certainly I can see nothing moving. Anything my size would be impossible to see at that distance anyway, I should think.”
„I could see you at that range without these glasses, but I couldn’t count your eyes or arms. With them I can say pretty certainly that that hilltop is deserted. Just the same, I’ll practically guarantee that those stones didn’t get there by accident; we’d better keep eyes open for whoever set them up. Better warn your crew.” Lackland mentally noted the fact of Barle
For two or three minutes, while the sun moved far enough to reveal most of the areas* previously in shadow, they waited and watched; but nothing except the shadows moved, and finally Lackland started ‘the tank once more. The sun set while they were descending the slope. The tank had only one searchlight, which Lackland kept aiming at the ground in his path; so they could not see what, if anything, went on among the stones above. Sunrise found them just crossing another brook, and tension mounted as they headed uphill once more. For a minute or two nothing was visible, as the sun was directly ahead of the travelers; then it rose far enough to permit clear forward vision. None of the eyes fastened on the hilltop could detect any change from its appearance of the night before. There was a vague impression, which Lackland found was shared by the Mesklinites, that there were now more stones; but since no one had attempted to make a count of them before, this could not be proved. There was still no visible motion.
It took five or six minutes to climb the hill at the tank’s five-mile speed, so the sun was definitely behind them when they reached the top. Lackland found that several of the gaps between the larger stones were wide enough for the tank and sled, and he angled toward one of these as he approached the crest of the ridge. He crunched over some of the smaller boulders, and for a moment Dondragmer, on the ship behind, thought one of them must have damaged the tank; for the machine came to an abrupt halt. Barle
„Captain! What is it?” Dondragmer hurled the question even as he gestured the weapons crew to the flame tanks. The rest of the crew distributed themselves along the outer rafts, clubs, knives, and spears in readiness, without orders. For a long moment Barle
„It’s all right, I guess,” he said. „We can see no one moving, but it looks a little like a town. Just a moment and the Flyer will pull you forward so that you can see without going overboard.” He shifted back to English and made this request to Lackland, who’promptly complied. This action produced an abrupt change in the situation.
What Lackland had seen at first — and Barle
It could not possibly have been natural. Starting a short distance below the ridges were broad, shallow cha
Lackland judged that cha