Although this book was listed in a collection of Richard Hannay stories, Hannay makes only a brief appearance at the beginning. Begins in the pleasant atmosphere of a country house in the Scottish borders, where Richard Hannay is the guest of his old friend, Sandy Arbuthnot. The action is set in Olifa, a fictional country on the west coast of South America. When Sandy Arbuthnots friend John Blenkiron discover that a charismatic industrial tycoon is plotting to rule the world from his base in the small South American country of Olifa, Sandy leads a revolution to scuttle the plot and allow the Olifans to decide their own fate. As it turns out, these events are only the prelude to a dramatic series of adventures which take place against the backdrop of a small South American Republic that has fallen under the spell of a ruthless Dictator.