Belton of Earth-E

A small, old swamp lumber town located somewhere in the great southland of America on the parallel world of Earth-E, populated solely by beautiful young women and ruled over by the mysterious Big Sister Sybil. In October 1975, Clark Kent, Jr. and his traveling companion, Bruce Wayne, Jr., who are secretly Superman, Jr. and Batman, Jr., stumble upon the town while in the midst of a cross-country road trip, and are thrown in jail for their inability to pay a $500 parking fine.

The sisterhood of Belton is eventually discovered by the Super-Sons to be part of a scheme by Big Sister Sybil, secretly an alien planning to use a serum in the town's water supply to change the all-female populace into "ugly things" resembling the alien. Upon her defeat by the Super-Sons, "Sybil" uses her monolith—in truth a space vessel— to escape to her home planet. There she is punished for her scheme by being forced to "[see her] hideous self reflected for eternity!" (WF No. 233: "World Without Men").