I'm exceedingly late to the party, but Kelly Chambliss rec'ced you on Crack_broom over at LJ today - and your Muriel/Griphook is one of my all-time favourites, so I rushed over.
What a wonderfully-complex story you've woven! And all three women stand out so beautifully. Each of them is perfectly IC. Petunia in her (sometimes blind) love for her husband and son, but you actually show us what she sees in them - in a perfectly convincing way.
It was wonderful to read what exactly happened when Dawlish came. And the final image of Augusta on broom, against a moonlit sky, complete with witch hat and cackle, is brilliant. As is the description of Augusta the Village Witch, ensuring that her kind neighbour's crops do just that little bit better.
And Minerva is beautifully IC, too. Wry, human, tired on occasions, but still a strong fighter. Her affair with Aberforth, and Aberforth himself, is so very well done. I love Aberforth's sense of humour. What Ariana would have looked like with a beard. And of course there was nothing inappropriate about that charm on a goat.
One of the things I admire most in your story is the many cameos we get, all so perfectly rounded. The Pakistani shop-owner. The inhabitants of Augusta's village (that event with the boy who recited the dubious poem was so telling!), and Lee Jordan coming to the Safe House.