A Song to Slay By
The vampire lords and their armies provide peace and safety, fighting off the crow people from the south. All they ask in exchange is one sacrifice per year, a flawlessly beautiful young woman to marry for a single night--and then devour.
Society blesses this arrangement. Those who go willingly to their deaths are accounted martyrs, instant saints in the eyes of the church, and the families of those left behind are honored and compensated with wealth.
Mosaic tries to go willingly to her death, but when the moment comes she finds that the vampire lord Azraeus does not offer an easy end for her or her, nor forgiveness for the rebellious brother who tries to save her. She discovers in herself a mysterious power to resist and fight--a magic signified by the two colors of her skin and awakened by a secret lover's song--which might spell the end of a social order which has lasted hundreds of years.
If you like fantasy, vampires, and strong heroines, you should consider submitting to this story's call.