to "cripple the meta-hero community", she believes Oracle is about to be assassinated and rushes to her base of operations. She locates her father on a rooftop and engages in a one-on-one fight, eventually sending him over a ledge. When he loses his grip, she tries to save him but fails; he falls to another part of the rooftop. Batman, who had followed her, accepts her into the family again and says he will adopt her and make her his daughter. However, after Bruce Wayne's apparent death, Cassandra, apparently disillusioned, passes the cowl to her close friend, Stephanie Brown, then she leaves Gotham. Black Bat After Bruce Wayne returns, it is revealed that Cassandra's disillusionment was a ruse, and that she has willingly handed over her Batgirl mantle to Stephanie because she was acting under her mentor's orders in the event of his death or disappearance, and gone undercover, using Tim Drake as a regular contact. Following Bruce Wayne's public announcement about his intention to create a global team of Batmen, Tim visits Cassandra in Hong Kong, where she has been acting as an codename-less vigilante. He attempts to persuade Cassandra to return to Gotham now that things have returned to normal, but she refuses, saying that Stephanie needs the Batgirl role more than she does. Just before departing, Tim gives Cassandra a copy of her old costume and tells her that if she chooses to stay and fight crime in Hong Kong, he hopes she will do it while wearing a Bat-symbol. Cassandra takes Tim up on his offer, and joined up with Bruce's new group, now wearing a heavily modified costume that uses her original outfit as a base. She now uses the name of Black Bat, and among other activities brings down a heroin-smuggling operation in Hong Kong. After a new supervillain named the Architect destroys three Gotham bridges with the help of explosives smuggled from Hong Kong, resulting in the deaths of dozens of civilians. Cassandra, feeling guilty over her failure to stop the explosives from leaving China, returns to Gotham and partners with Red Robin, Dick Grayson, and Damian Wayne (the newest Robin) to bring the Architect to justice. During a stakeout at Oswald Cobblepot's nightclub, Cassandra is mocked and berated by Damian, who tells her that he is a better hero and that Bruce likely sent her to Hong Kong as a demotion. Despite