Frankenstein; or, The Modern Prometheus is a novel written by the English author Mary Wollstonecraft Shelley that tells the story of a young science student Victor Frankenstein, who creates a grotesque but sentient creature in an unorthodox scientific experiment. Shelley started writing the story when she was 18, and the first edition of the novel was published anonymously in London in 1818, when she was 20. Shelley's name first appeared on the second edition, published in France in 1823.