The Earl and the Emigree by Elizabeth Chater
The Earl of Stone and Hammer has always led a peaceful and undisturbed life. That is until a gorgeous young French woman shows up on the doorstep of his home. She brings news that his brother, who has been missing for years, is dead in the streets of France and that the young boy in front of him is his nephew. Cozette has brought the young boy all the way from France to save his life, for the French Revolution has seized Paris and virtually everyone is in danger. From that day on, the Earl has had to put up with this saucy young Frenchwoman who so tempts and torments his heart. But as the two grow closer, Cozette reveals her real reason for having so desperately escaped from France: she bears a message for the King of England himself! As Cozette comes closer and closer to danger, like a fly being tempted toward a spider, she and the once icy Earl become entangled in a web of their own making, one of mounting desire for each other.