A Hideous Shape Rose Out of the Water Behind Them.
Zaidie uttered a little low scream and covered her face again, and Redgrave said:
"The same old brutal law you see, life preying upon life even on a dying world, a world that is more than half dead itself. Well, I think we've seen enough of this place. I suppose those are about the only types of life we should meet anywhere, and I don't want to know much more about them. I vote we go and see what the invisible hemisphere is like."
"I have had all I want of this side," said Zaidie, looking away from the scene of the hideous tragedy, "so the sooner we go, the better I shall like it."
A few minutes later the Astronef was again rising towards the stars with her searchlights still flashing down into the Valley of Expiring Life, which had seemed to them even worse than the Valley of Death. As he followed the rays with a pair of powerful field glasses, Redgrave fancied that he saw huge, dim shapes moving about the stunted shrubbery and through the slimy pools of the stagnant rivers, and once or twice he got a glimpse of what might well have been the ruins of towns and cities, but the gloom soon became too deep and dense for the searchlights to pierce and he was glad when the Astronef soared up into the brilliant sunlight once more. Even the ghastly wilderness of the lunar landscape was welcome after the nameless horrors of that hideous abyss.
After a couple of hours' rapid travelling, Redgrave pointed down to a comparatively small, deep crater, and said:
"There, that is Malapert. It is almost exactly at the south pole of the moon, and there," he went on, pointing ahead, "is the horizon of the hemisphere which no earthborn eyes have ever seen."
"Except ours," said Zaidie somewhat inconsequently, "and I wonder what we shall see."
"Probably something very like what we have seen on this side," replied Redgrave, and as the event proved, he was right.
Contrary to many ingenious speculations which have been indulged in by both scientist and romancer, they found that the hemisphere, which for countless ages had never been turned towards the earth, was almost an exact replica of the visible one. Fully three-fourths of it was brilliantly illuminated by the sun, and what they saw through their glasses was practically the same as what they had beheld on the earthward side; huge groups of enormous craters and ringed mountains, long, irregular chains crowned with sharp, splintery peaks, and between these vast, deeply depressed areas, ranging in colour from dazzling white to grey-brown, marking the beds of the vanished lunar seas.
As they crossed one of these, Redgrave allowed the Astronef to sink to within a few thousand feet of the surface, and then he and Zaidie swept it with their telescopes. Their chance search was rewarded by something they had not seen in the sea-beds of the other hemisphere.
These depressions were far deeper than the others, evidently many thousands of feet below the average surface, but the sun's rays were blazing full into this one, and, dotted round its slopes at varying elevations, they made out little patches which seemed to differ from the general surface.
"I wonder if those are the remains of cities," said Zaidie. "Isn't it possible that the old peoples of the moon might have built their cities along the seas just as we do, and that their descendants may have followed the waters as they retreated, I mean as they either dried up or disappeared into the centre?"
"Very probable indeed, dearest of philosophers," he said, picking her up with one arm and kissing the smiling lips which had just uttered this most reasonable deduction. "Now we'll go down and see."
He diminished the vertically repulsive force a little, and the Astronef dropped slantingly towards the bed of what might once have been the Pacific of the Moon.
When they were within about a couple of thousand feet of the surface it became perfectly plain that Zaidie was correct in her hypothesis. The vast sea floor was thickly strewn with the ruins of countless cities and towns, which had been inhabited by an equally countless series of generations of men and women, who had perhaps lived and loved in the days when our own world was a glowing mass of molten rock, surrounded by the envelope of vapours which has since condensed to form our oceans.
They dropped still lower and ran diagonally across the ocean-bed, and as they did so Zaidie's proposition was more and more completely confirmed, for they saw that the towns and cities which stood highest were the most dilapidated, and that the buildings had evidently been torn and crumbled away by the action of wind and water, snow and ice.
The nearer they approached to the central and deepest depression, the better preserved and the simpler the buildings became, until down in the lowest depths they found a collection of low-built square edifices, scarcely better than huts, which had clustered round the little lake into which, ages before, the ocean had dwindled. But where the lake had been there was now only a shallow depression covered with grey sand and brown rock.
Into this they descended and touched the lunar surface for the last time. A couple of hours' excursion among the houses proved that they had been the last refuge of the last descendants of a dying race, a race which had socially degenerated just as the succession of cities had done architecturally, age by age, as the long-drawn struggle for mere existence had become keener and keener until the two last essentials, air and water, had failed—and then the end had come.
The streets, like the square of the great Temple of Tycho, were strewn with myriads and myriads of bones, and there were myriads more scattered round what had once been the shores of the dwindling lake. Here, as elsewhere, there was not a sign or a record of any kind—carving or sculpture. If there were any such on the surface of the moon they had not discovered them. The buildings which they had seen evidently belonged to the decadent period during which the dwindling remnants of the Selenites asked only to eat and drink and breathe.
Inside the great Pyramid of the City of Tycho they might, perhaps, have found something—some stone or tablet which bore the mark of the artist's hand; elsewhere, perhaps, they might have found cities reared by older races, which might have rivalled the creations of Egypt and Babylon, but they had neither time nor inclination to look for these.
All that they had seen of the Dead World had only sickened and saddened them. The untravelled regions of Space peopled by living worlds more akin to their own were before them. The red disc of Mars was glowing in the zenith among the diamond-white clusters which gemmed the black sky behind him.
More than a hundred millions of miles had to be traversed before they would be able to set foot on his surface, and so, after one last look round the Valley of Death about them, Redgrave turned on the full energy of the repulsive force in a vertical direction, and the Astronef leapt upwards in a straight line for her new destination. The Unknown Hemisphere spread out in a vast plain beneath them, the blazing sun rose on their left, and the brilliant silver orb of the earth on their right, and so, full of wonder and yet without regret, they bade farewell to the World that Had Been.

