Do You Believe in Ghosts?

Luke tells you some very scary and strange stories which he's thought of or which are completely real and actually happened to him. Do you think it's really possible that our world could be visited by spirits or other beings that we don't normally see? I have had some pretty strange experiences myself that I can't explain and that I don't like to think about very much because it sort of freaks me out a bit. Luke doesn't believe in ghosts but who knows what is really out there in the darkness.