Callisto was a moon of Jupiter. It was colonised by humans. (AUDIO: The Lady from Callisto Rhys) Its capital city was Valhalla. (AUDIO: Valhalla) There was a penitentiary on Callisto, staffed by synthumans. (PROSE: C9H13NO3)

At some point before 2157, Adjudicator Bishop killed fifteen drug dealers on Callisto. (PROSE: Lucifer Rising)

Lara Memphis was originally from Callisto. (AUDIO: The Lady from Callisto Rhys)

During the late 30th century, Abu ibn Walid was the Duke of Callisto. (PROSE: So Vile a Sin)

One account stated that by the early 24th century, Callisto was among the moons of Jupiter that were not destroyed as part of a spring cleaning of the Sol system. (PROSE: To the Slaughter)

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