One man, sitting by the window of a third-class carriage near the end of the train, looked out at the familiar scene dreamily to-night. He was an elderly, gray-headed man, a parish doctor, hard-worked and poorly paid; but he had a keen eye for the beautiful in Nature, dead or living, and familiar as this spot was to his eye, it always impressed him. He sat with his face to the engine, puffing lazily at his black briarwood, and gazing at the landscape, in that not unpleasant condition of bodily and mental fatigue, when the mind seems half asleep, and the external world is little more than a dream-picture. The train was not a long one, a good many of the London coaches having been left behind at Plymouth. Dr. Menheniot put out his head, and surveyed the line of carriages as they rounded the curve. There was a figure here and there by a window; but the train seemed sparsely occupied. They were nearing the viaduct. That narrow thread of water trickling over its rocky bed in the depth of the gorge was in winter a rushing torrent. The line at this point was under repair, and the wooden palisade had been removed in the progress of the work. The actual danger was in nowise increased by the absence of this barrier, which would have crumbled like matchwood before the weight of the train, had the engine run off the rails--but there was a seeming insecurity to the eye of the traveller as he looked into the gulf below; and Dr. Menheniot gave an involuntary shudder. Another moment and the engine came on the viaduct. Menheniot started up with a half-articulate exclamation, "What, in God's name--" he began. He opened the carriage-door, seemed as if he were going to clamber out, to try and make his way along the footboard to a distant carriage, outside which a girl was standing, holding on to the brass hand-rail at the side of the door. She had that instant stepped out, or been thrust out; Menheniot knew not which. He had seen nothing till he saw her standing there, a slender figure in a light-coloured gown, thin draperies fluttering in the wind--standing there, hanging between life and death, a creature to be rescued somehow, were it at the hazard of a man's life. Before he could put himself in peril the chance of rescue was over. A wild shriek rang through the wood--a fluttering form went whirling down the ravine, flashing white athwart the sunlit greenery, and lay half buried amidst a tangle of ferns and wild flowers at the bottom of the gorge.