The World of the Crystal Cities | Page 2

see something of what's going on.
"Meanwhile, here comes Calisto. Look at his shadow flying across the clouds. And there's Ganymede coming up after him, and Europa behind him. Talk about eclipses, they must be about as common here as thunderstorms are with us."
"We don't have a thunderstorm every day," corrected Zaidie, "but on Jupiter they have two or three eclipses every day. Meanwhile, there goes Jupiter himself. What a difference distance makes! This little thing is only a trifle larger than our moon, and it's hiding everything else."
As she was speaking, the full-orbed disc of Calisto, measuring nearly three thousand miles across, swept between them and the planet. It shone with a clear, somewhat reddish light like that of Mars. The Astronef was feeling its attraction strongly, and Redgrave went to the levers and turned on about a fifth of the R. Force to avoid contact with it.
"Another dead world," said Redgrave, as the surface of Calisto revolved swiftly beneath them, "or, at any rate, a dying one. There must be an atmosphere of some sort, or else that snow and ice wouldn't be there, and the land would be either black or white as it was on the Moon. It's not worth while landing there. Ganymede will be much more interesting."
Zaidie took half-a-dozen photographs of the surface of Calisto while they were passing it at a distance of about a hundred miles, and then went to get lunch ready.
When they got on to the upper deck again Calisto was already a half-moon in the upper sky nearly five hundred thousand miles away and the full orb of Ganymede, shining with a pale golden light, lay outspread beneath them. A thin, bluish-grey arc of the giant planet over-arched its western edge.
"I think we shall find something like a world here," said Zaidie, when she had taken her first look through her telescope. "There's an atmosphere and what looks like thin clouds. Continents, and oceans, too! And what is that light shining up between the breaks? Isn't it something like our Aurora? "
As the Astronef fell towards the surface of Ganymede she crossed its northern pole, and the nearer they got the plainer it became that a light very like the terrestrial Aurora was playing about it, illuminating the thin, yellow clouds with a bluish-violet light, which made magnificent contrasts of colouring amongst them.
"Let us go down there and see what it's like," said Zaidie. "There must be something nice under all those lovely colours."
Redgrave checked the R. Force and the Astronef fell obliquely across the pole towards the equator. As they approached the luminous clouds Redgrave turned it on again, and they sank slowly through a glowing mist of innumerable colours, until the surface of Ganymede came into plain view about ten miles below them.
What they saw then was the strangest sight they had beheld since they had left the Earth. As far as their eyes could reach, the surface of Ganymede was covered with vast orderly patches, mostly rectangular, of what they at first took for ice, but which they soon found to be a something that was self-illuminating.
"Glorified hot houses, as I'm alive," exclaimed Redgrave. "Whole cities under glass, fields, too, and lit by electricity or something very like it. Zaidie, we shall find human beings down there."
"Well, if we do I hope they won't be like the half-human things we found on Mars! But isn't it all just lovely! Only there doesn't seem to be anything outside the cities, at least nothing but bare, flat ground with a few rugged mountains here and there. See, there's a nice level plain near the big glass city, or whatever it is. Suppose we go down there."
Redgrave checked the after-engine which was driving them obliquely over the surface of the satellite, and the Astronef fell vertically towards a bare flat plain of what looked like deep yellow sand, which spread for miles alongside one of the glittering cities of glass.
"Oh, look, they've seen us!" exclaimed Zaidie. "I do hope they're going to be as friendly as those dear people on Venus were."
"I hope so," replied Redgrave, "but if they're not, we've got the guns ready."
As he said this about twenty streams of an intense bluish light suddenly shot up all round them, concentrating themselves upon the hull of the Astronef, which was now about a mile and a half from the surface. The light was so intense that the rays of the sun were lost in it. They looked at each other, and found that their faces were almost perfectly white in it. The plain and the city below had vanished.
To look downwards was like staring straight into the focus of a ten thousand candlepower electric arc lamp. It was so intolerable that Redgrave closed the lower shutters, and meanwhile