What a great chapter. Ariadne's parent's live in a fantasy world. Much like what happened to the Jews in WWII. If we don't see it or say anything about it, it will go away and leave us alone. It actually describes a lot of people. I'm glad Ariadne has finally accepted that she doesn't have to be like her parent's. Which is sort of a metaphor that people can learn to think for themselves and actually do something positive to counteract evil, even when those around them refuse to do so because it would make them see the world as it really is.
Your story is fantastic. Hopefully there will be more stories. Though I realize some stories and series have been abandoned before I even find them, I hope this isn't one of them. I'll have to check the dates to be sure.
Thank you so much! Just for the record: yes, I finished this story two years ago. I have since made some changes to bring it into line with post-DH canon, but the version you are reading is intended to be both complete and definitive. It is told in four parts, and you are now half way through the first part.
You are right about the MacDougals. They are not bad people in the sense that the Death Eaters are bad, but they are the ultimate ostrich types. Some of their reasons are explained in the early chapters, although most readers have probably forgotten by now. Most of Malcolm's family was murdered by Grindelwald so he just wants to keep away from dangerous people. Bethoc was born a Macnair and she is reacting against the Death Eaters and other criminals in her own family. Their son Kenneth just doesn't think. All of them are highly disturbed that Ariadne knew better before she was four years old.
This is basically the point that JKR is making with Professor Quirrell. The very frightening idea of the disembodied man hiding in the turban is presumably a metaphor for not allowing anyone else to do your thinking for you.
Deceit around the Crystal Orb