Then, almost immediately underneath them, spread out the great land areas of the equatorial region. The four continents of Halle, Galileo, and Tycholand; then Huygens--which is to Mars what Europe, Asia, and Africa are to the Earth, then Herschell and Copernicus. Nearly all of these land masses were split up into semi-regular divisions by the famous canals which have so long puzzled terrestrial observers. "Well, there is one problem solved at any rate," said Redgrave, when, after a journey of nearly four hours, they had crossed the western hemisphere. "Mars is getting very old, her seas are diminishing, and her continents are increasing. Those canals are the remains of gulfs and straits which have been widened and deepened and lengthened by human, or I should say Martian, labour, partly, I've no doubt, for purposes of navigation and partly to keep the inhabitants of the interior of the continents within measurable distance of the sea. There's not the slightest doubt about that. Then, you see, there are scarcely any mountains to speak of so far, only ranges of low hills." "And that means, I suppose," said Zaidie, "that they've all been worn down as the mountains of the earth are being. I was reading Flammarion's 'End of the World' last night, and he, you know, describes the earth at the last as just one big plain of land, no hills or mountains, no seas, and only sluggish rivers draining into marshes. "I suppose that is what they're coming to down yonder. Now, I wonder what sort of civilisation we shall find. Perhaps we shan't find any at all. Suppose all their civilisations have worn out and they are degenerating into the same struggle for sheer existence those poor creatures in the moon must have had." "Or suppose," said Redgrave rather seriously, "we find that they have passed the zenith of civilisation, and are dropping back into savagery, but still have the use of weapons and means of destruction which we, perhaps, have no notion of, and are inclined to use them? We'd better be careful, dear." "What do you mean, Lenox?" she said. "They wouldn't try to do us any harm, would they? Why should they?" "I don't say they would," he replied; "but still you never know. You see, their ideas of right and wrong and hospitality and all that sort of thing may be quite different to what we have on the earth. In fact, they may not be men at all, but just a sort of monster with perhaps a superhuman intellect with all sorts of extra-human ideas in it. "Then there's another thing," he went on. "Suppose they fancied a trip through Space, and thought that they had as good a right to the _Astronef_ as we have? I daresay they've seen us by this time if they've got telescopes, as no doubt they have, perhaps a good deal more powerful than ours, and they may be getting ready to receive us now. I think I'll get the guns in place before we go down, in case their moral ideas, as dear old Hans Breitmann called them, are not quite the same as ours." CHAPTER X