Too Wicked to Marry by Susan Sizemore

Martin Kestrel, an arrogant English diplomat, is used to getting his way — until Abigail Perry (who’s secretly Harriet MacLeod) challenges him at every turn. When Abigail flees to Scotland, Martin follows, determined to uncover her true identity and the secrets she’s hiding. But as danger closes in, and her cover threatens both their lives, Abigail must decide whether to trust Martin with her truth — and whether love is worth risking everything she’s built. Too Wicked to Marry is a story of wit, danger, and unexpected devotion.