I don't know whether he threw monsters into the mix or I...

I don't know whether he threw monsters into the mix or I said, 'Wouldn't it be cool to use monsters in it? Or S.H.I.E.L.D. got involved?' The next thing I know Mark calls me and goes, 'Hey, I pitched it to Joe and he likes it. Now we need someone to write it.' I'm thinking, 'What?' It just took on a life of it's own. It was almost one of these books that was going to happen whether we wanted it to or not.