* 1ST APPEARANCE "BAT-GIRL" (Elizabeth Kane)

Batman, Robin, and Batwoman battle the Cobra Gang at a scientific equipment exhibit and are captured by a member of the gang using the Electronic-Ring device. Suddenly, a new heroine calling herself Bat-Girl enters through a window and switches off the device, allowing the heroes to capture the gang, and leaves as swiftly as she entered.

When Batwoman returns to her lair, she finds Bat-Girl waiting and aware of her secret identity. A few days before, Betty Kane visits her aunt, Kathy Kane. Suspicious of her aunt's whereabouts, Betty deduces that her aunt is actually the crimefighting Batwoman. Although Batwoman is impressed and flattered, she begs her niece not to become Bat-Girl again. Batwoman later seeks the advice of Batman and Robin, who tell her to stall the girl with training in hopes she'll give up.

Tired of being stalled, Betty finds a shoe left behind by a member of the Cobra Gang and analyzes it. Her analysis reveals the presence of cellulose acetate leading her to the Cobra Gang's hideout in an abandoned rayon plant. The Cobra Gang captures the young heroine and imprisons her in an unused office. Bat-Girl uses the carbon paper in the office to make a number of bat shapes and releases them into an exhaust vent. Picking up on the signal, Batman, Robin, and Batwoman storm the plant and free Bat-Girl, who helps capture the Cobra Gang.

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