Lion in the Heather - The Longleigh Chronicles, #6

Lady Euphemia Longleigh has been very taken by all things Scottish. Little does she know she is about to embark on her own Highland adventure. She is abducted by the Last Laird of Laughlin, Leonidas McLaughlin. Drugged by an elderly relative who believes their men will always be poor until a McLaughlin weds a Longleigh bride, he scoops up Phemie and takes her across the border. By the time this man of science comes to his senses, the damage is done.
Phemie loves him-but her father is hot on their trail, determined to make her a widow.