There is so much in this story that is wonderfully, fascinatingly original. Taking deaths upon himself? A *Muggle* assistant?

So Polyjuice works on Muggles, huh? Brendan did a great job.

But I feel so sorry for Snape, trying so hard to do the right thing, nearly dying for it, but loathed by those he's trying to help. Such a hard road he travels. But you tell it brilliantly.