Elseworld's Finest. Supergirl & Batgirl TPB

Barbara Gordon is Batgirl, a crime-fighter who rules Gotham City with an iron fist. Wonder Woman and the rest of the Justice Society have been permitted to make a public announcement inside Gotham Arena, where they introduce Supergirl and Lex Luthor to the Gothamites for the first time. Lex announces his plans to construct a factory in Gotham, employing a large number of its citizens. Ambush Bug senses a disturbance and teleports to find Luthor's driver being attacked via gas by an unknown assailant. Batgirl stops him before he can investigate. As Lex leaves the arena, he is kidnapped by the Joker and Professor Hamilton.