DC Comics novels - Batman

Adapting what may be the most popular of graphic novels, by the edgy Hard Case Crime author, adding layers and exploring the nature of morality. A tragic, unnamed engineer-turned-criminal is immersed in chemicals that disfigure him bizarrely, driving him mad and thus giving birth to the Joker. While the insane criminal is imprisoned, Batman and Batgirl (Barbara Gordon) patrol Gotham City together,...