Katherine Gray is the sister of Nathanial and Theresa Gray. Kidnapped by a man who seems unnatural, she struggles to fight to keep her humanity after she's forced to do inhumane deeds in order to protect her siblings. Even after she finds safety with her sister and her new found band of rebels, her actions won't go unnoticed, and neither does her ability. With everything changing around her, Kate must fight herself and everyone who's trying to kill her. Disclaimer. All characters belong to Cassandra Clare, except Kate.