"one of those small events that just might have changed everything, utterly, forever"
I enjoyed reading your story, and respect what you achieve in it.
I came over here on recommendation by Leela_cat -- she thoughtfully pinged me personally, as well as sharing her recommendation of this story on her blog, because she knew I would particularly enjoy "Air Heart"'s historical fiction and moral messages, as well as its overall crafting. I love stories with things to teach, a shot at some education along with my entertainment.
Canon never satisfactorily addresses the inhumanity of the treatment of squibs, nor, despite JKR's efforts, the raw bigotry of attitudes on blood and magic. I appreciate how your story walks right up to these issues.
(Tiny passing tidbit? I liked "Wand Crafting" mentioned in passing as a class. It seems to me that many wizards would want to know how to do minor repairs on their wands, as many people dependent on a tool will go learn how it works and how to maintain it, even with no intention of ever creating one from scratch.)