There are something like 200 versions of this folktale/myth about a woman who dances with the devil (for various reasons). I am trying to find the one where she makes a deal with the devil and he gets half her life, and she thinks it'll be the end half, and that that it doesn't matter because she's dying... but he ends up taking every night when she goes to sleep, and forces her to dance, and dance so that every waking moment is spent exhausted? I can't remember where I saw it read this and it's driving me bonkers. Anyone know the tale??