4897. As respects the hells, these are beneath, and here there are forests, there marshes, there ruins, there pits, as of wells, into which they descend: below are various filthy places, like dens of wild beasts of various kinds, along with privies: there, likewise, are such places as robbers frequent; also filthy ponds and fetid waters, and the lower you go the more fetid and bad [things become].