Batgirl (2000-2006) #24
The importance of this revelation cannot be understated. Cass discovers Batman’s identity on his own, because she is able to recognize him through his facades, through the gap of time and pictures. Cass knows Batman, and this entire case is beginning to make more sense to her.
I also like that, much like Tim, Cass discovers Batman’s identity on her own. There’s actually a lot of interesting parallels between Tim and Cass in this regard. Tim followed around Batman and Robin because they, specifically Robin, were his heroes. He determined their identities because Dick Grayson was his hero before that, and he recognized him even in the costume. His love for the role, for Robin, is what would earn him that position.
Cass, like Babs says earlier in this issue, practically worships Batman as a symbol. But she has also grown to love and respect the man, even by this point. She discovers his identity because she knows Batman, and recognizes him without his cowl after subtle prompting. And, as we’ll see later in the series, all she wants in her life is to represent the Bat for him, after him even. She does that to a degree as Batgirl, but, well… *sighs at BftC* … *sighs at everything Cass post-2006*