[ Doctor nods. He's glad Greg said it first. ]

I was thinking the same thing. Who knows how many different planets and dimensions Blance and Santiago have used their powers to cross over and abduct people from. They'd be bound to pick up a non-human or two or twenty soon enough. The ghosts themselves didn't appear human. Ivan told me they had bright blue skin.

[ Now on that note... Is Greg ready for the next revelation? ]