This is utterly heartbreaking. And I mean that in the very best of ways. I was drawn into this from the very first paragraph and read it through in one feverish rush, and when it was done, I sat blinking at the screen with a near audible 'oof.' This is one of those stories that is both so firmly rooted in the HP world and so emotionally real that I think it's going to be firmly entrenched in my memory of canon.
The glasses...oh my.
I'm so glad I had the chance to read this. Beautiful work, Mystery Author.