Justice Leagues: Justice League of Arkham #1

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!

Written By:
Paul Grist
Coy Turnbull
Dan Davis
Cover By:
George Pérez, T. Horie