Talking to ghosts can be killer. Castleberry, Georgia is a small Southern town with a ton of history, and that history includes a lot of ghosts. How do I know? Because I can see them. And trust me, that's not always a good thing. As the city's historical society manager, I spend a lot of time in old buildings, and old buildings are filled with dead people. Take the Baptist church on the outskirts of town. I'm in the process of...