The Durmstrang Connection

Professors Snape and Granger are sent on a mission to improve Hogwarts' relations with Durmstrang. Unfortunately, nobody told their notoriously touchy hosts they are not a couple. Severus isn't too keen on finding out what Minerva would do if he wrecks her pet project. He would very much like to know why Viktor Krum is skulking in the corridors, though...