I found this very interesting:

"Mary never wrote to Bath herself; all the toil of keeping up a slow and unsatisfactory correspondence with Elizabeth fell on Anne." (ch 12)

I can well imagine that the letters Anne sent and received from Elizabeth were merely duty letters, not much enjoyed by either. I wondered that Mary never wrote. Is this another instance of Mary not doing something because she wouldn't enjoy it? I wonder if Mary kept in close contact with her father and sister before the move to Bath, or has Anne always been the go-between, or bridge between them? I can see that Anne would think it her duty to do so. Just another example of Anne having to do all the dirty work?