Cinderella is Dead by Kaylnn Bayron
It's 200 years after Cinderella found her prince, but the fairy tale is over. Teen girls are now required to appear at the Annual Ball, where the men of the kingdom select wives based on a girl's display of finery. If a suitable match is not found, the girls not chosen are never heard from again.
Sixteen-year-old Sophia would much rather marry Erin, her childhood best friend, than parade in front of suitors. At the ball, Sophia makes the desperate decision to flee, and finds herself hiding in Cinderella's mausoleum. There, she meets Constance, the last known descendant of Cinderella and her stepsisters. Together they vow to bring down the king once and for all. In the process, they learn that there's more to Cinderella's story than they ever knew . . .
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