Claims of the Heart (Macbeth book 3)

Since a perilous fall, Lucie Macbeth has been seeing more than a settled future as the heiress to a Scottish barony. The visions plaguing her include a man—one far above her class and breeding, and English to boot. He's engaged to a duke's granddaughter as well, and thus wholly inappropriate. Though she can't marry him, and she won't become any man's leman, when the Sight warns her of danger to him her conscience, and her heart tell her she can't walk away.

Since his return from Waterloo, Major Lord Rudgwick has been rusticating in the country teaching himself how to live as a man with only one hand and pondering how to end the engagement he contracted before his world turned upside down. But then a letter arrives from an old army comrade, requesting Rudgwick's aid for his daughter, Lucie Macbeth, the woman he met one year earlier, the woman whose claims on his heart he can't deny.