All's Fair in Love and Treachery

21 June, 1815. London may be cheering the news of Napoleon's surrender at Waterloo, but Lady Petra Forsyth has little to celebrate after discovering that the death of her viscount fiancé three years earlier was no accident. Instead, it was murder, and the man responsible is her handsome, half-Scottish secret paramour Duncan Shawcross - yet the scoundrel has disappeared, leaving only a confusing riddle about long-forgotten memories in his wake. So what's a lady to do when she can't hunt down her traitorous lover? She concentrates on a royal assignment instead.