Napoleon is at the height of his powers and has become the complete autocrat, lusting for more power. Roger Brook, the most valuable and resourceful of secret agents, moves among the centres of power of Europe and beyond and is taken, by mischance and intrigue to Turkey, Persia, Portugal and Brazil. Interwoven with the history is the thread of Roger's passionate involvement with the beautiful Lisala de Pombal, who plays her part in leading him from one desperate situation to another.