Justice Leagues part four! Batman's plan to stop the Advance Man has Nightwing wondering if his old mentor has lost his mind, as he teams up with Catwoman, the Riddler, Poison Ivy, the Ventriloquist, and the Joker!
Kieron Gillen, Dean Haspiel, Tim Seeley, Paul Grist, James Tynion IV, Matt Fraction, Patrick Kindlon, Brenden Fletcher, Skottie Young, Joe Casey, Geoff Johns, Maurizio Rosenzweig, Steve Lieber, Erica Henderson, Stefano Caselli, Nathan Fox, Fernando Blanco, Fábio Moon, Ba Gabriel & Andrea Mutti
