The Three Couriers is a 1929 comedy thriller novel by the British writer Compton Mackenzie. It was inspired by his experiences working for British intelligence during the First World War.Burton p.251 It is set in Southeastern Europe, and features the fictional British spy Roger Waterson who had previously appeared in Extremes Meet. Thriller writer Eric Ambler was an admirer of the novel.Burton p.251
References
Bibliography Burton, Alan. Historical Dictionary of British Spy Fiction. Rowman & Littlefield, 2016.
External links Full text of The Three Couriers at HathiTrust Digital Library