What a remarkable story. It took me a long time to read - I've stayed up way past my bedtime, but I couldn't stop.
There's so much thought and work gone into this. All the processes Severus went through, that Harry and Draco had to work out. An amazing story indeed.
I wish I could write more, but my brain's a bit frazzled. Thanks for sharing such an interesting story. I know I'll be remembering it for a long while.