What a wonderful story. I really love how old world Lucius is, the whole tone of the story, and the way it enforces the idea that he's outlived his time. And Regulus... I rarely read stories with Regulus in them because we don't know anything about him, really, in the books. I don't like the feeling that I'm reading an OMC in disguise -- but you've managed to avoid that completely. We understand his plight, we feel for him, and yet we still know very little about him. I love that about the entire story, actually, that we learn so much about lucius and his life, and yet also remain in the dark about so much. An amazing fic, all around.