She and Kobra schemed to perfect mind control, but they were stopped by Batman and the Outsiders before their plan could go into effect.
The Lady Eve of DC Comics lore first turned up on the page in “Batman and the Outsiders #24” back in 1985.
Black Lightning’s Lady Eve is associated with Tobias Whale rather than Kobra, and it should be interesting to see if the show includes nods to her comic history despite the changes for television.
Kobra was able to convince her that she could have a better life with him, and she joined the Kobra Cult and traveled to America.