The narrative follows a man engaged in diplomatic and intelligence work in Europe whose chance meeting with a disguised woman triggers a tangled blend of romance and espionage. Action moves across Ireland, shipboard passages to the Azores, an East Indian bungalow duel, yacht chases, a Bolero dancer's intrigue, and a Puerto Rico campaign that includes fortress imprisonment and a daring escape. Interwoven threads of secret plots, personal repentance, and shifting loyalties propel a sequence of adventures that test courage, love, and duty.