Lieutenant Bullock and a squad of cops arrive at the reservoir to take the Joker down, but the Joker uses his cellphone to order his men to attack the cops with rockets. Batman frees himself from the restraints and the Joker, but the Joker infects him with Joker Venom. With Batman momentarily distracted, the Joker kicks him off the bridge and into the Gotham River. Later, Batman awakens at the Batcave, having been rescued by the Batman Family. His allies (Nightwing, Robin, Red Robin, Batgirl, and even Red Hood) want Bruce to explain how did the Joker become aware of their identities. Batman believes he does not know and is only manipulating them because of his kidnapping of Alfred. He then tells a story about a previous encounter he had with the Joker in a blimp above the bay. During their fight, the Joker fell into the bay, but somehow, he placed a playing card in the Batboat. It didn’t have a tracking device or something like that, it was just a card. Despite the apparent breach of security, Batman believes there is no way the Joker could have entered the Batcave. Still, the others are unsure about this event. Batman has a new lead to follow: the Joker used a cellular signal to issue orders. While the cellphone was untraceable, the camera across the street from the store it was bought at identifies a man named Dylan McDyre. Batman crashes into McDyre’s home and interrogates him. McDyre reveals that the Joker had been threatening the families of the Arkham Asylum staff in order to maintain the appearance of normalcy at the asylum while he made changes, for whatever thing he is planning for Batman. More resolute than ever, Batman enters the asylum.
The Earth-Two Batman, a character from a parallel world, partners with and marries the reformed Earth-Two Selina Kyle, as shown in Superman Family #211. They have a daughter named Helena Wayne, who becomes the Huntress. Along with Dick Grayson, the Earth-Two Robin, the Huntress takes the role as Gotham's protector once Bruce Wayne retires to become police commissioner, a position he occupies until he is killed during one final adventure as Batman.
Despite this, Batman has proved to have a great love for humanity, which was instilled by his parents. His father was a doctor, while his mother was a crusader against child abuse. Indeed, Batman's oath of vengeance is tempered with the greater ideal of justice. He refrains from killing, as he feels this would not make him any better than the criminals he fights. He is also a very prominent member of the Justice League and the founder of the Outsiders.
The first Robin [yes, there was more than one Robin, there have been 4 in fact, all in continuity] was carefully schooled by Batman, learning all the skillshe would need to bring "Boss" Zucco to justice. Before long, Dick was ready for action. Sewaring a solemn oath, he joined the Dark Knight's crusade as his most trusted partner, Robin the Boy Wonder.
Batman is often treated as a vigilante by other characters in his stories. Frank Miller views the character as "a dionysian figure, a force for anarchy that imposes an individual order". Dressed as a bat, Batman deliberately cultivates a frightening persona in order to aid him in crime-fighting, a fear that originates from the criminals' own guilty conscience. Miller is often credited with reintroducing anti-heroic traits into Batman's characterization, such as his brooding personality, willingness to use violence and torture, and increasingly alienated behavior. Batman, shortly a year after his debut and the introduction of Robin, was changed in 1940 after DC editor Whitney Ellsworth felt the character would be tainted by his lethal methods and DC established their own ethical code, subsequently he was retconned as having a stringent moral code. Miller's Batman was closer to the original pre-Robin version, who was willing to kill criminals if necessary.