Gemma Doyle is a fictional character from the Gemma Doyle Trilogy, a series of young adult novels written by Libba Bray. Set in the late 19th century, the story follows Gemma, a teenage girl who discovers she has magical powers. After the tragic death of her mother, she is sent to a boarding school in England, where she navigates friendships, rivalries, and the complexities of her newfound abilities. Throughout the trilogy, Gemma learns about the Order, a secret society that connects her to a mystical realm. The series explores themes of friendship, identity, and the struggle between good and evil, making it a captivating read for young adults.