Dave Duncan (1933–2018) was a Scottish-Canadian author best known for his fantasy and science fiction novels. Born in Scotland, he moved to Canada in 1955 where he worked as a geologist before turning to writing full-time. Duncan's writing career started later in life, with his first novel, "A Rose-Red City," published in 1987. He gained prominence with his fantasy series, especially "The Seventh Sword" and "A Man of His Word," which feature rich world-building, complex magic systems, and swashbuckling adventures. His writing is characterized by well-developed characters, intricate plots, and imaginative settings. Duncan was highly prolific, producing numerous series and standalone novels throughout his career, and has been praised for his versatility and storytelling skills, earning a dedicated following among fans of genre fiction.