SUPERMAN/BATMAN: SUPERGIRL Originally published in Superman/Batman #8–13, May–October 2004
Batman has discovered something strange at the bottom of Gotham Bay, which leads him to a mysterious and powerful teenage girl who is bent on destroying Gotham City. Soon, she captures the attention of Superman, Wonder Woman and even Darkseid and his Female Furies.
What is her connection to Superman? Why does Wonder Woman want to hide her from the outside world? Who is she, and whose side will she end up on?
ACTION COMICS #252 Originally published in May 1959