Gates of hell unearthed by Italian archaeologists is said to be the entry gate to the Underworld; it is linked to the Greco-Roman mythology and tradition. Rivers Cocytus, Lethe, Phlegethon and Styx were also entrances to the Underworld. The god Hades kidnapped the goddess Persephone from a field in Sicily and led her to the Underworld through a cleft in the earth so he could marry her. Into the medieval period, Mount Etna on Sicily was considered to be an entryway to hell. The gates of hell were commonly depicted as jaws, forming the Hellmouth, which was simultaneously the entrance to hell and
Sailor Pluto and space are somewhat tied with the destructive power of Sailor Saturn for astrological and mythological reasons. The names of Sailor Pluto's attacks include frequent reference to the underworld (in Act 32 of the manga, she states that she "carries the protection of the planet of the underwold, Pluto."), which was the province of Pluto in Roman myth; this is evident in her first named power, , which is her primary attack throughout the first anime. Unlike any other attack in the series, its name is whispered rather than shouted when she uses it. In the manga, Sailor Pluto demonstrates