The water filtered into certain subjacent strata, which were particularly friable; the foot-way, which was of flagstones, as in the ancient sewers, or of cement on concrete, as in the new galleries, having no longer an underpinning, gave way. A fold in a flooring of this sort means a crack, means crumbling. The framework crumbled away for a certain length. This crevice, the hiatus of a gulf of mire, was called a fontis , in the special tongue. What is a fontis? It is the quicksands of the seashore suddenly encountered under the surface of the earth; it is the beach of Mont Saint-Michel in a sewer. The soaked soil is in a state of fusion, as it were; all its molecules are in suspension in soft medium; it is not earth and it is not water. The depth is sometimes very great. Nothing can be more formidable than such an encounter. If the water predominates, death is prompt, the man is swallowed up; if earth predominates, death is slow.
Can anyone picture to himself such a death? If being swallowed by the earth is terrible on the seashore, what is it in a cesspool? Instead of the open air, the broad daylight, the clear horizon, those vast sounds, those free clouds whence rains life, instead of those barks descried in the distance, of that hope under all sorts of forms, of probable passersby, of succor possible up to the very last moment—instead of