Justice League of America #75
In "In Each Man There Is a Demon!", Black Canary arrives from Earth-2 to join the Justice League of America, only to find herself facing twisted reflections of her teammates—evil doppelgängers from another reality. Written by Denny O'Neil and brought to life with sharp, dynamic art by Dick Dillin and inks by Joe Giella, the story unfolds as she grapples with a startling new power: a sonic scream, awakened by her journey across the multiverse. The cover, by Carmine Infantino with inks by Murphy Anderson, captures the eerie tension of a hero confronting her darker self.
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Black Canary joins the JLA after traveling to Earth 1 from Earth 2. The JLA must battle evil versions of themselves, and Black Canary discovers she's gained the power of a sonic scream as a result of crossing over to Earth-1.
Plot details indexed by the Grand Comics Database (CC BY-SA).