Still, little by little, whether it was that the distant air-holes emitted a little wavering light in this opaque gloom, or whether his eyes had become accustomed to the obscurity, some vague vision returned to him, and he began once more to gain a confused idea, now of the wall which he touched, now of the vault beneath which he was passing. The pupil dilates in the dark, and the soul dilates in misfortune and ends by finding God there.

It was not easy to direct his course.

The line of the sewer reechoes, so to speak, the line of the streets which lie above it. There were then in Paris two thousand two hundred streets. Let the reader imagine himself beneath that forest of gloomy branches which is called the sewer. The system of sewers existing at that epoch, placed end to end, would have given a length of eleven leagues. We have said above, that the actual network, thanks to the special activity of the last thirty years, was no less than sixty leagues in extent.