As a matter of fact the Corporal at that moment was just rising to his feet, and wondering whether he was on his head or his heels. For old Billy on finding himself in the bog had plunged madly about, girth-deep, until he had pumped all the wind out of himself, when he had waited quietly to recover his breath and floundered out on to the sound ground, shaking such a shower of brown drops over the Corporal as brought him to himself and made him stagger to his feet, rub his eyes, and remember where he was. He soon made out in which direction Billy was gone and presently caught sight of him, making his way to the water to drink; but the horse was not going to let himself be caught at once, and led the Corporal a long dance down by the water-side, where, of course, he could see nothing of the children, though he kept hallooing from time to time in the hope that they would hear him.

And meanwhile the children looked round and round, wondering where they had come from and where they should go to. They had not the least idea where they were, and they could see no one and hear no one; but they laid their heads together and decided that they had better go on to the top of the hill before them, from which, as Dick said, they would be able to see further. So as soon as the ponies had recovered their wind they went on upward, and presently to their delight they saw far ahead of them the horseman whom they had followed, no longer moving but stopped still. They hustled the ponies into a gallop once more, when to their dismay the man began to move slowly on away from them. They called out at the top of their voices but could not make him hear, in fact he seemed rather to quicken his pace. So they drove the ponies on again, not noticing that tufts of grass were beginning to show themselves in the heather over which they rode. Then the man suddenly turned to his left and went galloping on, and the children turned also to catch him by cutting off the corner; but the ponies seemed unable to travel very fast, and presently Dick's pony after some desperate floundering came right down on his nose, shooting the boy gently over his ears, where he landed with his head and shoulders in a shallow pool of brown peaty water.

Dick jumped to his feet at once, for he was not a bit frightened, and caught the pony easily; but he felt a little humiliated, for he could just see that his white collar was stained with brown mud, and he did not like the trickling of the water down his back. It took him a few minutes to repair damages, and when he put his foot into the stirrup to jump up again, the saddle began to turn round on the pony's back, and he had to jump down again hastily and try to set the saddle right while Elsie held the pony's rein. But while he was heaving with all his little strength, the pony's back suddenly sank before him, and Elsie cried out that Stonecrop (for that was the pony's name) was going to lie down. Like a wise little woman she gave the rein a jerk, which brought Stonecrop's head up and kept him on his legs; but Stonecrop was so much annoyed that he whisked round and tugged so hard at the rein that he drew it over his head; and Dick had only just time to catch hold of it before Elsie was obliged to let go, for fear of being pulled out of her saddle. Then Stonecrop, who was now still more annoyed and had quite recovered his wind, refused for a long time to allow the rein to be put over his head again, but kept dodging and backing until he drove Elsie almost to despair. At last he backed into some soft ground where he could not move very quickly, and Dick threw the rein over his head; after which Stonecrop decided to behave himself, and actually stood still for a moment to let Dick mount him. The saddle very nearly turned round as he did so, but Elsie held on stoutly to the stirrup on the other side, and, once mounted, Dick soon set the saddle straight again by his weight; but both of the children were wearied and disheartened by all these misfortunes, for Stonecrop had kept them waiting by his antics for more than half an hour.

Then they looked about them again for some one to guide them, and particularly for the Corporal; but the Corporal, as luck would have it, though he was trying his best to find them, never came within eyesight or earshot of them. Besides, Billy was so lame that he could not ride him very fast, and the Corporal himself was not so sure of his way but that he had to keep looking out sharply to remember where he was. So seeing no help Dick and Elsie made up their minds that they must try to find their own way home, though they had little idea in which direction to start, for they had never been so far on the moor before. The rolling hills and grass and heather seemed to be very much the same on every side, and there was no road nor track to guide them. Dick did indeed think of following the hoof-marks of their own ponies backward, for he had heard the Corporal tell stories how lost and tired soldiers had rejoined an army on the march by sticking to its tracks; but unfortunately this was not very easy. Very soon they made up their minds that the first thing to be done was to get clear of the treacherous ground on which they stood, for the ponies floundered terribly, and in one desperate scramble over a very soft place Dick let his whip fall and could not find it again. Still on they went, and at last came to a little trickle of water in a hollow, running between what seemed to be sound green grass; but the ponies refused to cross it; and it was well that they did so, for it was deeper and more dangerous than any ground that they had yet traversed. So there was nothing for it but to follow the water in the hope that the ground would improve; and accordingly they did follow it, upward. The stream grew smaller and smaller, and Dick hugged himself with the idea that when it disappeared altogether they would be able to travel faster. But, on the contrary, the ground grew worse instead of better, for water underground makes worse foothold than water flowing honestly above, and very soon they lost all sense of their direction in the difficulty of keeping the ponies on their legs at all. At last after several very unpleasant struggles they luckily found their way out of the worst of the bog; but there seemed to be no end to the tract of mixed grass and heather, which is always treacherous to ride over; and the ponies were constantly in difficulties. Then to Dick's joy at last they came upon tracks of a horse or pony, and there was something to guide them, though it was very often difficult to find and follow it. They wandered on, however, until Dick's eye caught the gleam of silver, and there lay his lost whip; so that, after all their riding, they had but wandered round and round and come back to the place from which they had started.

Poor Elsie, who was getting very tired, was very much disheartened, but Dick choked down his vexation and disappointment, for it was at any rate something for him to recover his whip, which he valued greatly. Stonecrop was too much blown now to give much trouble, so he jumped off and picked it up safely, and then he and Elsie held a long consultation, and at last agreed to make straight for a high hill towards which the sun was sinking. So they turned their ponies' heads towards it, and started again, keeping their eyes steadily on a mound or barrow on the hill-top. In a short time they found themselves clear of the boggy ground; and the ponies stepped out so bravely that they felt sure that they were going right. So they trotted on, greatly encouraged, and came to a stream babbling over its bed of yellow stones, though the ground beyond it was so steep that they were obliged to follow it for some distance before they could find a way across. Thus they were compelled to move slowly, and Elsie suddenly gave a little shiver, and both she and Dick realised that the air was grown chill and that the light was beginning to fail. Still they pressed the ponies on, and at last they caught sight again of the barrow on the hill, though, to their disappointment, it seemed little nearer than before. Then even while they watched it, a great bank of gray mist suddenly came rolling out of the west and blotted out the barrow and the ridge on which it stood. Still they rode on towards the same point, until, almost before they knew it, the mist was upon them and they could not see fifty yards away. Their hearts sank within them as the darkness gathered round them, but though they drew closer together they said nothing, for the ponies still travelled on with confidence, and they hoped that all the while they were drawing nearer to the barrow. But the mist struck damp and cold through them, weary and fasting as they were, and they had much ado to keep up each other's spirits. So they wandered on, until the ponies, as if they felt that their little riders had lost resolution, came to a dead stop. A keen breeze came out of the west, chilling the two children to the bone; and Stonecrop turning his head to the wind broke out into a long wailing whinny, which brought home to the children such a sense of their loneliness and desolation that Elsie looked blankly at Dick and Dick as blankly at Elsie, and neither found heart to say a word.

So they sat in their saddles for a minute or two silent and hopeless, when suddenly both ponies pricked their ears and snuffed at the wind, and Stonecrop again raised a loud but more cheerful whinny. And out of the mist faint and far distant came the sound of a whinny in answer. Then Elsie stopped, checked the tears that were rising to her eyes, and looked at Dick, who was listening intently. He had some thought of jumping off and saying his prayers, except that he was not sure how Stonecrop would behave; but, even while he reflected, Stonecrop's knees began to bend as if to lie down again, and then he caught hold of the pony by the head and gave him a cut with his whip that drove him on in a hurry. "Come along, Elsie," he said resolutely, "if we can reach that horse we may find some one to help us. Perhaps it may be Billy." And off he went dead up wind at a good round pace, which warmed them both and put them into better heart; and Dick broke into a cantering song which the Corporal had taught him, and sang it in time to Stonecrop's pace.

"Oh, a soldier's son, and a soldier's son,
He must never go back, but always go on.
Though it may be hard, he must always try,
Though he may be hurt, he must never cry.
He must never lose heart nor seem distressed,
But pluck up his courage and do his best.
And so struggle on, and on, and on,
For that's the way for a soldier's son.
"

Now nothing is more certain than that, if you wish to find your way through a fog, you must travel in the direction that you have chosen as fast as you can. Very soon the children found themselves going down rather a steep descent, when Stonecrop again stopped and whinnied, and an answering whinny once more came faintly out of the mist. So they kept on their way down and came to a stream, where Dick guided his pony across and up the ascent on the other side. But Stonecrop after scrambling up for a little way deliberately came back to the water and followed it downwards, sometimes in the bed of the stream, sometimes on the bank by the side; and Dick let him go, feeling confident that the pony knew better than he. So they went splashing down for a long way, wondering what would come next, until Stonecrop again stopped and whinnied; and a little further on they came upon another little stream, running into that which they were following, where the pony turned and followed the new water upward. A little further on he gave a kind of whispered grunt of satisfaction, and presently there came the sound not only of neighing but of pattering hoofs, and a pony suddenly came trotting out of the mist towards them. He stopped and whinnied gently, turned round, trotted back for some way, then stood and whinnied again, while the children's ponies hastened their own pace towards him. Then the sound of a shrill whistle came down the water, and the strange pony at once turned and cantered away towards it; but Stonecrop only moved the faster in the same direction, giving a loud scream to call him back. And now a faint light came dancing down by the water, drawing closer and closer to the children till they could see that it was a man carrying a lantern. Nearer and nearer it came, and Dick cleared his throat and began, "Oh, please—," whereupon the man stopped so short that Dick stopped too, and Elsie came up close to him and clung to his arm. Then the light disappeared and the man gave a peculiar whistle. It was answered by the same whistle at a distance, and the children waited with beating hearts till the light appeared again; and at last a woman's voice said very roughly out of the mist,

"Who's there?"

"Oh, please, we have lost our way," said Dick; "please, please tell us the way home."