BTW I think def not Rani. It's much more beautiful to have her as someone gone completely mad by showing her the end of the universe. The reveal about Jack and the big bad were really good, actually enough to save the episode but FFS you could have drove a tank through those plot holes. Also ending with Martha was really amazing. I LOVE Martha, don't see how she managed to 'walk the earth' in a year though.

I kinda wish Simm would be the master again though, but clearly not gonna happen. Sigh.