Books in the Dukes in Danger: A Haversham House Romance series

While gathering research for the puzzles she sells to newspapers, Vivian, the widowed Viscountess Rowden, literally stumbles across the arrogant Duke of Whitley. Whit, known to the ton as the Ice Duke, is spymaster for the Crown, and he has evidence of enemy agents using newspaper ciphers to send coded messages to Napoleon's army. His mission is...