JLA, book 03 : Rock of Ages
Grant Morrison et Howard Porter1998

The JLA's greatest enemies-Lex Luthor, the Joker, Circle, Mirror Master, Dr. Light, Ocean Master-have united as the Injustice Gang. Marshaling the skills of a mysterious seventh member, they remain safely hidden while controlling evil duplicates of the JLA: duplicates that are laying waste to Star City. In addition, Luthor is planning a "hostile takeover" of the League, the evil Darkseid is waiting in the wings, and if the JLA manages to thwart author's schemes, they will unknowingly hand over control of the universe to ...Darkseid.
(Collects JLA #10-15)