The World of the Crystal Cities

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The World of the Crystal Cities by George Griffith
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INTRODUCTION.
For their honeymoon Rollo Lenox Smeaton Aubrey, Earl of Redgrave, and his bride, Lilla Zaidie, leave the earth on a visit to the moon and the principal planets, their sole companion being Andrew Murgatroyd, an old engineer who had superintended the building of the Asfronef, in which the journey is made. By means of the " R. Force," or Anti-Gravitational Force, of the secret of which Lord Redgrave is the sole possessor, they are able to navigate with precision and safety the limitless ocean of space. Their adventures on the Moon, Mars, and Venus have been described in the first three stories of the series.
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"FIVE HUNDRED MILLION miles from the earth and forty-seven million miles from Jupiter," said his lordship, as he came into breakfast on the morning of the twenty-eighth day after leaving Venus.
During this brief period the Astronef had recrossed the orbits of the Earth and Mars and passed through that marvellous region of the Solar System, the Belt of the Asteroides. Nearly a hundred million miles of their journey had lain through this zone, in which hundreds and possibly thousands of tiny planets revolve in vast orbits round the Sun.
Then had come a desert void of over three hundred million miles, through which the Astronef voyaged alone, surrounded by the ever-constant splendours of the Heavens, but visited only now and then by one of those Spectres of Space, which we call comets.
Astern, the disc of the Sun steadily diminished, and ahead, the grey-blue shape of Jupiter, the Giant of the Solar System, had grown larger and larger until now they could see it as it had never been seen before -- a gigantic three-quarter moon filling up the whole Heavens in front of them almost from Zenith to Nadir.
Its four satellites, Io, Europa, Ganymede, and Calisto were distinctly visible to the naked eye, and Europa and Ganymede happened to be in such a position with regard to the Astronef that her crew could see not only the bright sides turned towards the sun, but also the black shadow-spots which they cast on the cloud-veiled face of the huge planet.
"Five hundred million miles!" said Zaidie, with a little shiver, "that seems an awful long way from home, doesn't it? Though, of course, we've brought our home with us to a certain extent. Still I often wonder what they are thinking about us on the dear old earth. I don't suppose anyone ever expects to see us again. However, it's no good getting homesick in the middle of a journey when you're outward bound."
They were now falling very rapidly towards the huge planet, and, as the crescent approached the full they were able to examine the mysterious bands as human observers had never examined them before. For hours they sat almost silent at their telescopes, trying to probe the mystery which has baffled human science since the days of Gallileo.
"I believe I was right, or, in other words, the people I got the idea from are," said Redgrave eventually, as they approached the orbit of Calisto, which revolves at a distance of about eleven hundred thousand miles from the surface of the planet.
"Those belts are made of clouds or vapour in some stage or other. The lightest -- the ones along the equator and what we should call the Temperate Zones -- are the highest, and therefore coolest and whitest. The dark ones are the lowest and hottest. I daresay they are more like what we call volcanic clouds. Do you see how they keep changing? That's what's bothered our astronomers. Look at that big one yonder a bit to the north, going from brown to red. I suppose that's something like the famous red spot which they have been puzzling about. What do you make of it?"
"Well," said Zaidie, looking up from her telescope, "it's quite certain that the glare must come from underneath. It can't be sunlight, because the poor old sun doesn't seem to have strength enough to make a decent sunset or sunrise here, and look how it's running along to the westward! What does that mean, do you think?"
"I should say it means that some half-formed Jovian Continent has been flung sky high by a big burst-up underneath, and that's the blaze of the incandescent stuff running along. Just fancy a continent, say ten times the size of Asia, being split up and sent flying in a few moments like that. Look, there's another one to the north. On the whole, dear, I don't think we should find the climate on the other side of those clouds very salubrious. Still, as they say the atmosphere of Jupiter is about ten thousand miles thick, we may be able to get near enough to