Espionage, double agents, passion, and deception are at the heart of this historical romance by Cheryl Sawyer, set against the backdrop of the Peninsular War (1808-14) between England and Bonaparte's France. It pits two patriots against each other, the young Frenchwoman Delphine Dagleish and the stalwart Englishman Sir Gideon Landor. In the midst of the Peninsular War, Sir Gideon has orders to crack the Grand Paris Cypher, a complex code created for Napoleon. Meanwhile the emperor himself sends Delphine to London on a delicate espionage mission. When Gideon and Delphine confront each other, they manage to defend their dangerous secrets but not their hearts. As passion takes hold, they must decipher their own complex code of love....