Darkstar Rising by Susan K. Hamilton
Now the time has come, and Darkstar is riding out to bring the people of Illauren to her brother’s side. But an accident changes her plans.
Darkstar suddenly discovers secrets about herself that have been hidden since childhood. Secrets that will transform her from an “ordinary” princess into one of the most powerful women on the continent. And with that power comes choices. Choices that may change the course of history itself.
Choices that could destroy everyone and everything Darkstar is fighting to protect…