Batgirl #3 2000

Batgirl #3 (2011) sees Barbara Gordon confronting the terrifying villain Mirror, whose escalating attacks culminate in a devastating train explosion. Batgirl also has a pivotal encounter with Nightwing, Dick Grayson, as they navigate their complex relationship and shared history. This issue is notable for its intense action sequences and for further developing the dynamic between two iconic Gotham heroes in the New 52 continuity.