At last he came to some wooden railings and got through a gap where one or two had been broken. Here the fog was so thick that he lost his bearings altogether. He didn't know in the least where he was, he couldn't see his hand before him; and then he stumbled over something which jarred his hurt foot horribly. The something was a wire. Of course, it was the railway. He remembered, almost with a feeling of excitement, that the railway was in the next field to the canal. A moment he stood trying to make out things and noises in the fog. Yes, he could hear, at least he thought he could hear, wagons being shunted in the sidings. After he had moved a few yards towards the sound, he was able to make out a red light in the distance. For some odd reason which he couldn't explain, the feeling of excitement began to grow with the certainty that he was on the line. He could feel the metals, icy cold, smooth and slippery under his feet. He limped along until a dim shape loomed ahead. It was a signal box. By this time his excitement was almost terrible. He stood a moment listening to the snortings of an engine which he couldn't see, and the clang-clang-clang of the wagons as they were being shunted in the sidings. And then all at once the signal under which he was shivering dropped with a great clatter, and something very deep down in him, a something he had not known existed until that moment, gave a sort of little exultant cry and told him that now was his chance. Excited almost to the verge of joy he limped past the signal box in order to get away from its lights. If the thing was done at all it would have to be done in darkness. Presently he looked round, and with a sensation of downright terror, found that the lights of the signal box were no longer to be seen. Here the fog was quite thick again; whichever way he looked there was not a single object he could make out in the darkness. But under his bare feet he could feel the broad metals icy, smooth, inexorable. "Now's your chance," said a gentle voice deep down in himself. Instantly he lay full length in the six-foot way. "Set your head on the line," said the voice. He did as he was told. The sensation of the icy metal under his right ear was so horrible that his heart almost stopped inside him.