But you must not imagine that all of Roverandom's time was spent creeping about like that. After all, the dogs knew that the Man's eye was on them, and they did a good many adventurous things and had a great deal of fun. Sometimes they wandered off together for miles and miles, and forgot to go back to the tower for days. Once or twice they went up into the mountains far away, till looking back they could see the moon-tower only as a shining needle in the distance; and they sat on the white rocks and watched the tiny sheep (no bigger than the Man-in-the-Moon's Rover) wandering in herds over the hillsides. Every sheep carried a golden bell, and every bell rang each time each sheep moved a foot forward to get a fresh mouthful of grey grass; and all the bells rang in tune, and all the sheep shone like snow, and no one ever worried them. The Rovers were much too well brought-up (and afraid of the Man) to do so, and there were no other dogs in all the moon, nor cows, nor horses, nor lions, nor tigers, nor wolves; in fact nothing larger on four feet than rabbits and squirrels (and toy-sized at that), except just occasionally to be seen standing solemnly in thought an enormous white elephant almost as big as a donkey. I haven't mentioned the dragons, because they don't come into the story just yet, and anyway they lived a very long way off, far from the tower, being all very afraid of the Man-in-the-Moon, except one (and even he was half-afraid).

Whenever the dogs did go back to the tower and fly in at the window, they always found their dinner just ready, as if they had arranged the time; but they seldom saw or heard the Man about. He had a workshop down in the cellars, and clouds of white steam and grey mist used to come up the stairs and float away out of the upper windows.

'What does he do with himself all day?' said Roverandom to Rover.

'Do?' said the moon-dog. 'O he's always pretty busy — though he seems busier than I have seen him for a long time, since you arrived. Making dreams, I believe.'

'What does he make dreams for? '

'O! for the other side of the moon. No one has dreams on this side; the dreamers all go round to the back.'

Roverandom sat down and scratched; he didn't think the explanation explained. The moon-dog would not tell him any more all the same: and if you ask me, I don't think he knew much about it.

However, something happened soon after that. That put such questions out of Roverandom's mind altogether for a while. The two dogs went and had a very exciting adventure, much too exciting while it lasted; but that was their own fault. They went away for several days, much farther than they had ever been before since Roverandom came; and they did not bother to think where they were going. In fact they went and lost themselves, and mistaking the way got farther and farther from the tower when they thought they were getting back. The moon-dog said he had roamed all over the white side of the moon and knew it all by heart (he was very apt to exaggerate), but eventually he had to admit that the country seemed a bit strange.

'I'm afraid it's a very long time since I came here,' he said, 'and I'm beginning to forget it a bit.'

As a matter of fact he had never been there before at all. Unawares they had wandered too near to the shadowy edge of the dark side, where all sorts of half - forgotten things linger, and paths and memories get confused. Just when they felt sure that at last they were on the right way home, they were surprised to find some tall mountains rising before them, silent, bare, and ominous; and these the moon-dog made no pretence of ever having seen before. They were grey, not white, and looked as if they were made of old cold ashes; and long dim valleys lay among them, without a sign of life.

Then it began to snow. It often does snow in the moon, but the snow (as they call it) is usually nice and warm, and quite dry, and turns into fine white sand and all blows away. This was more like our sort. It was wet and cold; and it was dirty.

'It makes me homesick,' said the moon-dog. 'It's just like the stuff that used to fall in the town where I was a puppy — on the world, you know. O! the chimneys there, tall as moon-trees; and the black smoke; and the red furnace fires! I get a bit tired of white at times. It's very difficult to get really dirty on the moon.'

This rather shows up the moon-dog's low tastes; and as there were no such towns on the world hundreds of years ago, you can also see that he had exaggerated the length of time since he fell over the edge a very great deal too. However, just at that moment, a specially large and dirty flake hit him in the left eye, and he changed his mind.

'I think this stuff has missed its way and fallen off the beastly old world,' he said. 'Rat and rabbit it! And we seem to have missed our way altogether, too. Bat and bother it! Let's find a hole to creep in!'

It took some time to find a hole of any sort, and they were very wet and cold before they did: in fact so miserable that they took the first shelter they came to, and no precautions — which are the first things you ought to take in unfamiliar places on the edge of the moon. The shelter they crawled into was not a hole but a cave, and a very large cave too; it was dark but it was dry.

'This is nice and warm,' said the moon-dog, and he closed his eyes and went off into a doze almost immediately.

'Ow!' he yelped not long afterwards, making straight up dog-fashion out of a comfortable dream. 'Much too warm! '

He jumped up. He could hear little Roverandom barking away further inside the cave, and when he went to see what was up, he saw a trickle of fire creeping along the floor towards them. He did not feel homesick for red furnaces just then; and he seized little Roverandom by the back of his little neck, and bolted out of the cave as quick as lightning, and flew up to a peak of stone just outside.

There the two sat in the snow shivering and watching; which was very silly of them. They ought to have flown off home, or anywhere, faster than the wind. The moon-dog did not know everything about the moon, as you see, or he would have known that this was the lair of the Great White Dragon — the one that was only half-afraid of the Man (and scarcely that when he was angry). The Man himself was a bit bothered by this dragon. 'That dratted creature' was what he called him, when he referred to him at all.

All the white dragons originally come from the moon, as you probably know; but this one had been to the world and back, so he had learned a thing or two. He fought the Red Dragon in Caerdragon in Merlin's time, as you will find in all the more up-to-date history books; after which the other dragon was Very Red. Later he did lots more damage in the Three Islands, and went to live on the top of Snowdon for a time. People did not bother to climb up while that lasted — except for one man, and the dragon caught him drinking out of a bottle. That man finished in such a hurry that he left the bottle on the top, and his example has been followed by many people since. A long time since, and not until the dragon had flown off to Gwynfa, some time after King Arthur's disappearance, at a time when dragons' tails were esteemed a great delicacy by the Saxon Kings.

Gwynfa is not so far from the world's edge, and it is an easy flight from there to the moon for a dragon so titanic and so enormously bad as this one had become. He now lived on the moon's edge; for he was not quite sure how much the Man-in-the-Moon could do with his spells and contrivances. All the same, he actually dared at times to interfere with the colour-scheme. Sometimes he let real red and green flames out of his cave when he was having a dragon-feast or was in a tantrum; and clouds of smoke were frequent. Once or twice he had been known to turn the whole moon red, or put it out altogether. On such uncomfortable occasions the Man-in-the-Moon shut himself up (and his dog), and all he said was 'That dratted creature again'. He never explained what creature, or where he lived; he simply went down into the cellars, uncorked his best spells, and got things cleared up as quick as possible.