Shadow Galactica been played by two actresses, Haruko Yamaguchi and Megumi Wakamatsu. and appear only in Act 48 of the manga. Sailor Lethe is named for a naiad in Greek mythology, and for a river of the Greek underworld where dead souls go to forget their past lives before being reincarnated. Sailor Mnemosyne is named for the Titaness of memory, the mother of the muses, as well as another river in the underworld which brought remembrance and omniscience. Sailor Lethe has an attack called "Galactica Myosotis Alpestris", which she used to attack Usagi. Myosotis alpestris is the name of an alpine species
Dead Souls trilogy's second part, Gogol destroyed it shortly before his death. Although the novel ends in mid-sentence (like Sterne's "Sentimental Journey"), it is usually regarded as complete in the extant form. The original title, as shown on the illustration (cover page), was "The Wanderings of Chichikov, or Dead Souls. "Poema"", which contracted to merely "Dead Souls". In the Russian Empire, before the emancipation of the serfs in 1861, landowners had the right to own serfs to farm their land. Serfs were for most purposes considered the property of the landowner, who could buy, sell or mortgage them, as any other chattel.