The lake by which the ancients entered the infernal regions. The fact that access to the infernal regions was obtained by a lake is believed by the learned Marcus Ansello Scrutator to have suggested the Christian rite of baptism by immersion. This, however, has been shown by Lactantius to be an error.

_Facilis descensus Averni,_
    The poet remarks; and the sense
Of it is that when down-hill I turn I
    Will get more of punches than pence.

Jehal Dai Lupe