Frankenstein; or, The Modern Prometheus was conceived during the famous summer of 1816 at Lake Geneva, when Lord Byron challenged his guests to write ghost stories. Published anonymously in 1818, the novel explores themes of creation, ambition, and scientific responsibility through the tale of Victor Frankenstein and his tragic creature.
Mary Shelley's other notable works include Valperga (1823), a historical novel set in medieval Italy; The Last Man (1826), a dystopian novel depicting a plague-ravaged future, which has gained renewed critical attention; and The Fortunes of Perkin Warbeck (1830). She also wrote the travel memoir History of a Six Weeks' Tour (1817) and Rambles in Germany and Italy (1844).
After her husband's death in 1822, she devoted herself to editing and publishing his poetry, securing his literary legacy. Mary Shelley died in London in 1851, remembered as a pioneering voice whose creation of Frankenstein's monster endures as a cultural icon.