Detective Comics #870

In "Batman: Impostors, Part Four: 'Last Man Laughing'," the shocking truth emerges: Winslow Heath wears not one, but two masks—both the Impostor Joker and the Impostor Batman. As the Gotham City World's Fair becomes a battleground for a twisted war between rival impostors and their Guardian Bats, Batman must confront a foe who knows his every move—while the line between hero and villain blurs beyond recognition. Written by David Hine and illustrated by Scott McDaniel, with inks by Andy Owens, colors by Guy Major, and letters by Todd Klein, the issue's cover by Peter Nguyen captures the chaos in striking detail.