Subtitle (titling) "Mario Kart" series; and "", the second in the "Star Trek" series. Subtitle (titling) In books and other works, a subtitle is an explanatory or alternate title. As an example, Mary Shelley gave her most famous novel the title "Frankenstein; or, the Modern Prometheus"; by using the subtitle "the Modern Prometheus", she references the Greek Titan as a hint of the novel's themes. In English, subtitles were traditionally denoted and separated from the title proper by the conjunction "or", perhaps hinting at their function as an alternate title. A more modern usage is to simply separate the subtitle by punctuation,
Prometheus him. Moreover, Aeschylus anachronistically and artificially injects Io, another victim of Zeus's violence and ancestor of Heracles, into Prometheus' story. Finally, just as Aeschylus gave Prometheus a key role in bringing Zeus to power, he also attributed to him secret knowledge that could lead to Zeus's downfall: Prometheus had been told by his mother Themis, who in the play is identified with Gaia (Earth), of a potential marriage that would produce a son who would overthrow Zeus. Fragmentary evidence indicates that Heracles, as in Hesiod, frees the Titan in the trilogy's second play, "Prometheus Unbound". It is apparently not until