Castor's Queen

Years after his brother's death, the sickly girl Nathaniel had come to know and love reappears - despite having allegedly died alongside his brother. But she's different. Suddenly he's dragged into a world far different from his own - the world of assassins. As he tries to navigate this strange new society, he slowly uncovers the truth about his brother's death and the mysterious girl he had once called a friend. As secrets are revealed and alliances shift, the fate of his country is at stake. And he has yet to trust the one who could save it.