This is finished? Odd; you really had potential with this story! Things tend to fly by awfully fast, though. We don't know why demons are actually attacking Atlantis or the significance of Megan's powers. It was also a strange concept to see God not as All-Knowing or All-Seeing, and Saint Peter as rather an antagonistic character. As I said, there is a lot of potential in a story like this, and it is a pity it's finished. Maybe with a bit of planning, it could someday be continued! Wonderful work; keep writing!
-Raven Oghma