what happend in jsa?
the nail and another nail showed the exsistence of a multiverse...
i wonder if the nail universe had a coie?
Dr. Fate (Flying Helmet Nabu) was fighting Mordru and Fate drew Mordru into to those worlds to show him (Mordru) that he wasn't so omnipitant as he thought.
We were only shown a small glimse of each world.
KC universe during the final battle at the Gulag.
JLA: The Nail the scene where Batman killed the Joker.
Big letdown really.
As far as Multiverses go, the current DC already has one and the existance of it is known. The Wildstorm crossovers of Mr. Majastic to the DC Earth and Captain Atom to the Wildstorm Earth prove this. Not to mention the Superman/Batman: Absolute Power arc.
When Mr. Majastic visited the DC earth, he even mentioned a Multiverse directly.