Sorceress Of The North Mountain

Anna stops at a tavern in Arendelle when a snowstorm suddenly hits and hears a man talk about "The sorceress off the north mountain" so after she hears the tale of this sorceress, she heads out despite the warnings she gets from the man. and up in the mountains, Elsa, the sorceress, is out looking for herbs, and meets a wounded warrior. should she help, or leave the warrior be? AU