"Sharpe's Devil" is a gripping historical novel by Bernard Cornwell, part of the popular "Sharpe" series. The story is set five years after the Battle of Waterloo and follows the protagonist Richard Sharpe, who must leave his quiet life in Normandy to help an old friend. The friend, Don Blas Vivar, is missing in Chile, and his wife does not believe the reports of his death. Sharpe and his loyal companion Patrick Harper set off for Chile, where they must confront not only the dangers posed by rebels but also an unexpected encounter with Napoleon on St. Helena. Cornwell masterfully captures the tension and challenges of a soldier's life in a turbulent time while exploring themes of friendship, loyalty, and the fight against injustice.