"You were a Durmstrang student?" Tom asked, something of a smile curving the edges of Tom's mouth as well. "And just what are you about to be expelled for?" Tom couldn't help but asking. After all, it wasn't as if he hadn't skirted the edges of expulsion as well; technically, if the truth had ever come out about what he had done, he would have been expelled, but Dumbledore had never been able to scrape together the evidence necessary. Tom had covered his tracks well. And he was a nice boy, really. Ask anyone.
"Oh, a small, but eclectic book seller in southern German who had very little idea as to what exactly he had," Tom answered easily. It was one of the first things that he had picked up when he had started traveling, navigating his way across the continent. He hadn't been precisely looking for Ulrike at that point, but he had certainly known something valuable - and Dark - when he had seen it.