User blog comment:NotCrazyZora/Bloody Mary's status/@comment-24099677-20140709200639/@comment-24557726-20140709201451

That's the trouble with clones. You never know which is the real one and which isn't. I think that Mary's clones couldn't glamour themselves, only she could. So I think it's important to note we killed another unglamoured Mary in the factory. We didn't kill her real form, we killed a different one.