"Oh, yes, I see; they're mountains; thirty-seven miles high, some of them, they say; and the rest of the silver-grey will be clouds, I suppose. Fancy living under clouds like those." "Only another case of the adaptation of life to natural conditions, I expect. When we get there I daresay we shall find that these clouds are just what make it possible for the inhabitants of Venus to stand the extremes of heat and cold. Given elevations three or four times as high as the Himalayas, it would be quite possible for them to choose their temperature by shifting their altitude. "But I think it's about time to drop theory and see to the practice," he continued, getting up from his chair and going to the signal board in the conning-tower. "Whatever the planet Venus may be like, we don't want to charge it at the rate of sixty miles a second. That's about the speed now, considering how fast she's travelling towards us." "And considering that, whether it is a nice world or not it's nearly as big as the Earth, I guess we should get rather the worst of the charge," laughed Zaidie as she went back to her telescope. Redgrave sent a signal down to Murgatroyd to reverse engines, as it were, or, in other words, to direct the "R. Force" against the planet, from which they were now only a couple of hundred thousand miles distant. The next moment the sun and stars seemed to halt in their courses. The great golden-grey crescent, which had been increasing in size every moment, appeared to remain stationary, and then, when he was satisfied that the engines were developing the Force properly, he sent another signal down, and the _Astronef_ began to descend. The half-disc of Venus seemed to fall below them, and in a few minutes they could see it from the upper deck spreading out like a huge semi-circular plain of light ahead and on both sides of them. The _Astronef_ was falling at the rate of about a thousand miles a minute towards the centre of the half-crescent, and every moment the brilliant spots above the cloud-surface grew in size and brightness. "I believe the theory about the enormous height of the mountains of Venus must be correct after all," said Redgrave, tearing himself with an evident wrench away from his telescope. "Those white patches can't be anything else but the summits of snow-capped mountains. You know how brilliantly white a snow-peak looks on earth against the whitest of clouds." "Oh, yes," said Zaidie, "I've often seen that in the Rockies. But it's lunch-time, and I must go down and see how my things in the kitchen are getting on. I suppose you'll try and land somewhere where it's morning, so that we can have a good day before us. Really, it's very convenient to be able to make your own morning or night as you like, isn't it? I hope it won't make us too conceited when we get back, being able to choose our mornings and our evenings; in fact, our sunrises and sunsets on any world we like to visit in a casual way like this."