Though Barbara Gordon was injured in her last encounter with the Joker, it was her mother who was burned, concussed, and missing a finger when she was admitted to the hospital. Though Barbara should be in the hospital too, she is instead at her father's house, hacking into the Gotham City Police Database and searching for mugshots of people who were accomplices to the Joker, thanks to her eidetic memory. Collecting the images together, she sends an anonymous email to her father with the knowledge that they will all be caught.