Eighth Prison

The Eighth Prison (8つのプリズン Yattsu no Purizun), also called Cocytus (for the river it's located on), is the final and deepest of the underworld's areas of punishment for souls.

Overview
The Eighth Prison is composed of an extensive plain of solid ice located just before Caina, where heads of saints who fought in past Holy Wars (and others who have in life challenged, fought or (especially) betrayed the gods) generally go to after their deaths. The sin of high heresy represented by this hell is considered to be the gravest of all, and can surpass even that of murder (that would usually be destined to the lake of boiling blood of the Sixth Prison).

Mythological roots
In Inferno, the first cantica of Dante Alighieri's Divina Commedia, Treachery, located in Cocytus, is the ninth and lowest circle of Hell. There, Cocytus is referred to as a frozen lake rather than a river, although it still originates from the same source as the other infernal rivers, the tears of The Old Man of Crete. Around the rim of the lake, giants who died in Gigantomachy are chained up for their betrayal of gods. Cocytus is the home of traitors and those who committed fraud.

Depending on the form of their treachery, victims are buried in ice to a varying degree, anywhere from neck-high to completely submerged. Cocytus is divided into four descending sections: Caina (where the souls of traitors to blood relatives go to), Antenora (where the souls of traitors to country go to), Ptolomea (where the souls of traitors to guests go to), Judecca (where the souls of traitors to masters and benefactors go to).

Appearances

 * Saint Seiya (debut)
 * Saint Seiya: The Lost Canvas