Douglas Macdonald DuValet is the Operations Director for a Motor Coach Touring Company operating within the United Kingdom and on the European Continent, and was recruited by British Intelligence' along with others in a like vein from companies within the tourist and travel industries, to work part-time for the Intelligence Service whilst undertaking their normal duties for their full-time employers. Very' little was known of this clandestine arrangement until it was exposed in a television documentary programme' which was broadcast in 2002. Fresh from Military Service discharge whilst on a training operation for his employers he meets Harvey, an older and very experienced Courier in the French and Spanish fields of operation.