Midnight Murder

Dere Ell is a young woman of little consequence, trained to stay in the shadows and not interfere with Supreme Mother's way of doing things. However, when she is assigned to assassinate a young man of royal blood, she discovers that she can no longer escape the spotlight, but perhaps there is still time to escape the past.
She has until midnight to decide her fate and kill the prince.

A modern spin on the story of Cinderella.