The Joker Presents: A Puzzlebox — DC Comics
Issue: #4
Harley Quinn races to find the next piece of the puzzle, deep in Gotham's complex cave system, but she's greeted by more than one monster set on getting the piece first!
Creators: Katie Kubert, Ulises Arreola, Dani Strips, Ferran Delgado, Jesús Merino, Matthew Rosenberg, Jeromy Cox
Characters: Mad Hatter, Killer Croc, Joker, Harvey Bullock, Harley Quinn, James Gordon