Gotham City Garage (2017) #3 (Online Order Only)

Dr. Harleen Quinzel was once the architect of Governor Luthor's mind-controlling ridealong project; now, as Harley Quinn-with her sidekick JØker in tow-she's returned to the Garden to see her good work burn. The Bat and Batgirl have never forgotten the trouble she's caused, and her return to the city is their chance for revenge!