In the conclusion of our mini-series on sidekicks, we look at how Harley Quinn began as a sidekick to a villain, and found her way to the heart of the DC canon and fandoms around the world. Nicole Herviou of ComicsVerse and journalist Lux Alptraum discuss how the relationship between Harley Quinn and The Joker mirrors abusive relationships in real life. And I talk with comic book creators Jimmy Palmiotti and Amanda Conner about how they separated Harley from her toxic boyfriend, and set the character on a new path.