The rumbling of the trains of laden waggons coming to the shafts, the faint voices of the men in the distance, were the only sounds heard, while the lights which flitted here and there only served to make the long vaulted galleries appear more gloomy and dark. "Come along, Mark!" said his uncle, shouldering his pick and spade, and holding his lantern before him. As they stepped out of the cage, they found themselves in a gloomy vault, on one side of which a huge furnace was unceasingly roaring, while at the other were the stables in which a number of horses, mules, and donkeys were kept. Before them was the main gallery, about eight feet high and the same wide, arched over with bricks four thick, and extending three miles away from the mouth of the pit. Out of it for its whole length opened shorter galleries or side galleries where the coals were now being won. In all of them rails were laid down for the waggons to run on, and on each side were seams of coal, in some places narrow near the top, in others close to the ground, and in some there was coal from the top to the bottom. At the entrance of these side galleries were doors which had generally to be kept shut, and were only opened when the waggons, loaded with coal or returning empty, had to pass through. After Simon and Mark had proceeded a couple of miles along the main gallery, they stopped at one of these doors. "This is to be your post, Mark," said Simon. "When you hear the waggon coming, you are to open the door, and as soon as it is passed to shut it. Mind you don't go to sleep. You'll be in the dark, but that won't hurt you, and if you feel anything running by, you'll know it's only a rat. It won't touch you while you are awake. I began my life in this way, so must you. There, go and sit down in that hole cut out for you. When you hear the rolley coming, pull that rope, which will open the door. There, now, you know what to do. Take care that you do it," and Simon, leaving his nephew, proceeded on to the farther end of the working. He then commenced operations on a new cutting which the under-viewer had marked out for him in the side of the gallery. It was about three yards square, and was to be about four feet six inches back under the bed of coal, he began by hewing away about two feet six inches from the ground and working upwards, cutting out the coal with his pick, shovelling it into a large corve or basket which stood at hand ready for the reception of the lumps. At first the work was tolerably easy, as he could stand upright and swing his pick with all his force. As he got deeper and deeper into the bed, he had to fix a strut or post with a cross beam to support the weight of the roof, and he had to get the coal out by stooping down low or resting on his knees. Finally he had to work lying down on one elbow, swinging his pick over his head with the other arm in a way a miner alone could have used it.