This was so beautifully written that I fell in love with it from the start. I loved all the little details about Durmstrang.
And Draco! So obsessed with Harry. (Fair play after Harry's sixth year.) He thought the only way to get Harry (and get revenge) was to dose him, but then discovered that he'd lost the truth of interacting with Harry.
How Harry managed to get the Ministry not to cart Draco off I don't know, but I'm glad.
Obsessive, jealous Draco! Perfect.
Also, I was greatly amused by the allusion to JKR's epilogue.