Cherry Wilder 
Princess of the Chameln [EPUB ebook] 

When her royal parents are killed during a coup, Princess Aidris Am Firn of the Chameln flees for her life. Constantly on the run from unseen enemies of the crown, she poses as a commoner and joins a cadre of women warriors so she can fight those who assassinated her parents and continue to hunt her. While cultivating allies, Aidris learns that two pretenders have ascended to the dual thrones of Chameln. Having discovered their true queen is still alive, counselors from Chameln rally to her side and convince the queen that the time has come for her to reclaim her birthright. But before she can do this, she must discover who her enemy really is, lest the unknown assassins strike her down too.