I loved, loved, loved The Boy Who Only Lived Twice so much. I read it before the reveals, and I thought it might be you but I wasn't sure enough to poke you about it and say how much I loved it, heh.

I seriously could've wallowed in that story for another hundred thousand words. It was awesome. And you're right, the reader does know that Rabbit = Malfoy pretty quickly, because that's how fanfic works, but I think you're right about the mechanics of it and how you set it up.