The Gates of Dawn — Susan Barrie

She was late for their first meeting and he had been angry. It was a unlikely beginning for two people about to fall in love.

Richard Trenchard was accustomed to having his own way, especially with women. Even his sister had to relinquish her valued secretary, Melanie, to be a companion for his niece. Melanie herself was given no choice in the matter. However, since his niece was charming, and the places they stayed in England and Austria were pleasant, Melanie had little cause for complaint. Until she found herself jealously disturbed by Richard's latest conquest....