""Gideon the Ninth"" by Tamsyn Muir is a genre-defying blend of science fiction, fantasy, and mystery. It follows Gideon Nav, a reluctant necromancer, as she is thrust into a deadly competition among the houses of the Ninth Necromancers. Tasked with assisting Harrowhark Nonagesimus, Gideon navigates a labyrinth of political intrigue, necromantic challenges, and unexpected alliances. Muir's sharp wit, intricate world-building, and exploration of LGBTQ+ themes make this novel a standout, as it balances humor with suspense in a dark, immersive setting.