Yeah, that's what I said. She said "welcome to the sisterhood", but every time the Master brought up him regenerating in her she didn't answer. She said she couldn't remember because timey wimey stuff, but Missy seemed like she was holding something back. Michelle Gomez is such a good actress that it feel it must have…

I can't see Simm or Gomez returning, unless it's in the Christmas special. I'm just wondering which of them is going to regenerate into the next Master we meet.

That was great! Lots of open questions about the Master. If Missy is dead, is that the end of his timeline? So Missy's probably not dead, or at least is going to regenerate at some point. Although her obscurity whenever the Master brought up his regenerating into her makes me think there's going to be some…