DC Greatest Imaginary Stories Vol. 2: Batman & Robin — Bill Finger

In the 1960s, the heyday of DC's alternate reality 'imaginary' stories, a series of stories introduced a new Dynamic Duo made its debut, with Richard Grayson, the former Robin, as the new Batman. At his side was a new Robin: Bruce Wayne Jr.

These are the stories of Batman II and Robin II, in which they battle the son of The Joker and meet Batwoman II and her sidekick, Batgirl.

This volume also collects the imaginary stories of "The Marriage of Batman and Batwoman" and "The Bride of Batman" (and in the latter story, it's none other than Lois Lane).