The Mistletoe Mistress — Kate Harper

When Annabel Cresswell finds herself stranded by the side of the road one snowy afternoon, she knows she is in serious trouble. Until her very own knight appears in the form of Dominic, the tenth Duke of Roth. Dominic is startled to find such a paragon in distress but quickly decides she can be of use to him. He proposes that she come home and pretend to be his fiancee. It will thwart his mother's plans and allow for a trouble free Christmas. Except that nothing is trouble free when Annabel is about. The duke cannot escape his growing desire for her and as for Annabel… it turns out that all she ever wanted was a duke for Christmas.