For someone with an English degree, I can be rubbish at spotting the obvious - I've said before that I failed to notice Jean Brodie was a fascist. But also I was lead astray by the fact that the teenyweeny people of LKH were the moral equivalent of mid-ranking Nazis.

Goodness knows about the Doctor and River. I think if I were her I'd be really, really angry about having to spend my life in prison for a murder I didn't commit. Why can't the Doctor fake her death and let her out?

I love the Silence in the library idea!