Rosamunde Pilcher's Shades of Love.

Edmund Aird is the lord of Balnaird House, one of the most splendid estates in the Scotish Highlands. He and his American-born wife, Virginia, seem to have it all: wealth, beautiful children, and a thriving family business. Just when everything seems to be on track, long-buried tensions arise to threaten the family's happiness and the fate of their ancestral home.