The Wedding Bargain — Agnes Sligh Turnbull

She knew when he asked her to marry him it was to be a marriage of convenience. To Daniel Morgan, self-made millionaire and reluctant playboy, young Liza Hanford was that rarest of all creatures -- an efficient, compassionate and discreet private secretary. So discreet in fact that he never knew that for eight heart-wringing years Liza had been in love with him. It was hardly the kind of proposal to set a girl cloud-walking, but to Liza it opened the door to a new life ... and perhaps he just might learn to love her. To all appearances it was a true Cinderella story. But underneath the pleasant surface dark shadows of Daniel's past began to emerge. Suddenly this unspoken menace exploded and threatened not only Liza's marriage but her husband's life