Duchess / Jude Deveraux 680 p.

American Claire Willoughby must wed an "acceptable" man to keep her grandfather's millions.  Harry Montgomery, Duke of MacArran, was the man.  When the engagement is announced, the Willoughby family goes to Scotland to meet the Montgomery's.  There resides a domineering mother, eccentric relatives, and Trevelyan, a mysterious man who lives secretly in the most ancient part of the castle.  Claire is drawn into Trevelyan's world.  Mother rules the castle even to the timing of meals which Claire tends to miss as she goes walking.  Claire remains loyal to Harry to the point to going on shoots with him where she must stay absolutely silent.  She finds herself with Trevelyan more and more in this romance set in 1880's in Scotland.