"The Inferno" by August Strindberg is an autobiographical novel written in French in 1896–97. The book chronicles Strindberg's turbulent life in Paris and beyond, where isolation, failed alchemical experiments, and occult practices fuel his descent into paranoia. Believing himself persecuted by enemies and guided by mysterious forces, he explores Swedenborgianism, mysticism, and various philosophies while growing increasingly convinced that his life has become a living hell. Part confession, part invention, the work blurs reality and exaggeration for dramatic effect. (This is an automatically generated summary.)
These books are free to read. Each is in the public domain in the United States; check your own country's rules before you copy or share one.