"Harrow the Ninth" is a fantasy novel by Tamsyn Muir, the sequel to Gideon the Ninth. It continues the story of Harrowhark Nonagesimus, a necromancer, as she navigates a complex world filled with political intrigue and supernatural elements. The narrative explores themes of loyalty, power, and the consequences of ambition. Set in a universe where necromancers wield unique abilities, the book delves into the mysteries surrounding the Locked Tomb and the enigmatic Empress. As Harrow faces challenges and confronts her past, readers are drawn into a richly crafted world that blends dark humor with intense emotional depth.