The Masque of the Black Tulip (Pink Carnation)

Harvard grad student Eloise Kelly achieved the academic coup of the century when she unmasked the spy who saved England from Napoleon. But now she has a million questions about the Pink Carnation's deadly French nemesis, the Black Tulip. And she's pretty sure that her handsome onagain, off-again crush, Colin Selwick, has the answers somewhere in his archives. But what she discovers in an old codebook is something juicier than she ever imagined.