OK, after Heroes in Crisis turned out to be a bust as a mystery, I was a little gunshy about getting on board with another DC mystery event, but, three issues in, it looks like Bendis is actually delivering an honest to goodness mystery with suspects, clues, and all the trimmings.

My current guess is Green Arrow. He's always wanted to shake things up. He got that magic box from J'Onn. He's smart enough and egocentric enough to think he could pull all this off. Plus, Bendis has been dropping some not-so-subtle hints about Ollie so far.

I think Dick Grayson with a spit personality would be a better choice, but since he hasn't been mentioned even once so far, I think he's unlikely given that most mysteries have the culprit there from the very beginning...and Ollie is the only one that qualifies.