When Frida was born, she was smaller than other babies, she never cried. People where talking about changelings, and that she really was a fey creature.
She grew up almost like a normal child, but didn't like the heat much and loved to run barefoot in snow. She got a blue tint and got paler every year. And she tolerated heat less and less.
Her family decided to move north. She was not well liked, but she was used to that. People generally don't like people that are different. That changed one winter when she saved a little girl who'd gone under the ice while ice skating on the lake.
One nice and not to warm midsummer day, the year she turned 16, she was taking a walk by the lake with a young boy.
She was never seen again but the young boy was found under a tree ice cold and dead, the next day. His blood was frozen in his veins.

Nobody knows what really happened. Someone say that their first kiss, killed him and she went crazy and drowned herself in the lake.
Others say that she went back to the land of the land of fey, but she got the hunger for people and when someone freezes do death its her not being able to control her hunger.
The more romantic people say that shes looking for her true love. A man that instead of dieing of her kiss, thaws her hart.