Code of Love — Cheryl Sawyer

At the height of the Peninsular War, English agent Sir Gideon Landor is assigned the task of deciphering the Grand Paris Cypher, a code created specifically for Napoleon, but his mission is complicated by Delphine Dalgleish, a young Parisian assigned to a delicate espionage mission by the emperor himself.

To Sir Gideon Landor, an English naval prisoner in the French colony, Delphine Dalgleish, a Parisian trifle who would think nothing of turning him over to the French legion, is as pretty -- and as useless -- as a porcelain doll. To Delphine Dalgleish, Sir Gideon is an ice-cold double agent she despises for his treachery.

But these two are about to find out how wrong first impressions can be. 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.

And, still, war draws them inexorably to the Peninsula, threatening their lives and testing an alliance that may prove stronger than two empires.