That was an interesting question. No one had asked her this before. She smiled a little - the sort of smile you gave when you were humble and a little embarrassed. There was also some trepidation there as she'd have to admit who her father was, maybe.
"Back home we have something called glamour, or the mist. It hides monsters and gods from mortals. If something like a giant appeared and attacked people, they might only see a tall, angry man. When I was fourteen, a frost giant came to my school. No one else could see him, but I did not want them to get hurt. I lured it onto the roof and pushed it off. Odin was impressed, especially considering the people I saved were not particularly kind to me." They were terrible, in fact. She also knew she admitted to not being a more, even before she was a valykrie. "So Odin honoured me by making me a valkyrie."