This paperback collects the Batman: Going Sane storyline from the comic book series Batman: Legends of the Dark Knight. The storyline was written by J.M. DeMatteis and illustrated by Joe Staton and Steve Mitchell. It was published from November, 1994 to February, 1995. In this storyline The Joker seemingly kills Batman after a life-and-death struggle. Faced with the loss of his nemesis, the insane Joker can only retreat into sanity.
This paperback also reprints the story Gotham Emergency from the 200th issue of Batman: Legends of the Dark Knight. This story is written by Daren White and illustrated by Bart Sears. It was published in April, 2006.