About the end of an hour Rodolph began, though slowly, to resume his consciousness. He found himself extended on the ground, in the midst of thick darkness; he extended his hand and touched the stone stairs descending to the vault; a sensation of extreme cold about his feet induced him to endeavour, by feeling the ground, to ascertain the cause: his fingers dabbled in a pool of water. With a violent effort he contrived to seat himself on the lower step of the staircase; the giddiness arising from his fall subsided by degrees, and as he became able to extend his limbs he found, to his great joy, that, though severely shaken and contused, no bones were broken. He listened: the only sound that reached his ear was a low, dull, pattering, but continued noise, of which he was then far from divining the cause. As his senses became more clear, so did the circumstances, to which he had been the unfortunate victim, return to his imagination; and just as he had recalled each particular, and was deeply considering the possible result of the whole, he became aware that his feet were wholly submerged in water; it had, indeed, risen above his ankle. In the midst of the heavy gloom and deep silence which surrounded him, he heard still the same dull, trickling sound he had observed before; and now the matter was clear to him. Now, indeed, he comprehended all the horrors of his situation: the cave was filling with water, arising from the fearful and formidable overflowing of the Seine,--the dungeon in which he had been thrown was doubtless beneath the level of the river, and was chosen by his gaolers for that purpose, as offering a slow though certain means of destruction. The conviction of his danger recalled Rodolph entirely to himself. Quick as lightning he made his way up the damp, slippery stairs; arrived at the top, he came in contact with a thick door; he tried in vain to open it,--its massy hinges resisted his most vigorous efforts to force them.