There is a deep awareness of sorrow, loneliness, and healing it's a bit alarming. What one must have gone through to distill such understanding...
I rarely enjoy a story where the author interprets the motives of the characters for the readers. But this one worked really well.
Of course there is also the spot on characterization, especially the part where Harry falls through the carton wall, it is just so him, being serious and ridiculous at the same time.
And Snape. I've never seen Snape spoke so much in his silence. I especially appreciated his awkwardness after realizing that he has survived. Rather than counting himself fortunate or feeling relived and move on immediately after, I think it's more plausible that he would feel awkward, resigned, and a bit lost.
My favorite line is: "It’s a part of Severus that chooses to stay invisible to him because it can’t be gotten rid of, and it’s much easier for him that way. That way he doesn’t have to spend energy he doesn’t have trying to silence something that can’t be silenced."
Thank you, mysterious writer. Reading this fiction has been a sobering yet heart-warming experience.