In winter, on a snowy morning, you went out into the woods to get some things before it dies, like berries, mashrooms, etc

You are wearing a big, fluffy, long cloak to keep warm yourself and to hide your creature features, for you are a powerful creature and people being people will try to misuse it

It's been about a hour and you started heading back home when you trip and fell down a hill and straight into a over frozen garden, a castle, but not any castle, the ice demon king's