I got a new story idea from... A dress up game. If you go to stardoll dot com, click all dress ups, and enter Cinderella in the search box, you will find the game in question. In my version, a regular girl keeps having dreams in which she is Cinderella. then the dreams take on a darker turn, and she has to lead a rebellion. One day the girl mysteriously disappears and lives out her dreams.  So there you have an original idea for a Cinderella fractured fairy tale!
(Umbralife is an ancient art that was wiped out after the first great war.)