Faithful Traitor (Heartsong Presents)

is book #611 of the Heartsong Presents line.
==Book Description==
Torn Between Duty and Passion...
Georgette Talbot begs God's guidance. Mr. LaTournay, a wealthy New York merchant, desires her as his bride. Despite Georgette's objections, her British parents transact the engagement, assuring her that love will come in time. — Then, amid rumors of war and disastrous setbacks for British loyalists, Georgette meets her ideal: a masked, mysterious, yet devoted admirer who speaks of faithful love. Honor compels her to send him away, but she cannot forget him - even when she learns that he is a traitorous conspirator whose life is forfeit to the Crown.
True to her vows, Georgette attempts to forget her secret love - until accusations bring her own loyalty into question. Surely Georgette cannot love a treacherous spy whose face she has never seen! Yet how can she bring herself to betray him?
(Description from paperbackswap.com)