Lark in an Alien Sky (Harlequin Romance, 2274)

Corinne had met Grogori on a holiday in Paris. Older than she, he was a lover who swept her to heights she'd never dreamed of. She had vowed to meet him in Greece and marry him there. She had promised to become part of his threateningly close-knit powerful family. Now it was too late to wonder if she had been foolishly impulsive. But standing under the wedding garlands with her proud, exultant bridegroom, Corinne was overcome by a sense of dread...