The Secret (Clayton Family #3)
Shirley Hailstock

At the age of three, Stephanie Hunter was kidnapped and adopted by her abductor. Now, thirty-four years later, Stephanie is an independent, creative woman, and the new founder of her own design firm. She's also on the verge of discovering her true birthright--one that will connect her with a powerful, charismatic man who is different than any she has known. Contentedly single, Stephanie has learned from experience that men don't really want strong women like her. . .until she meets Owen Clayton.
Owen is an architect by profession, and a ladies man by reputation. Abandoned as a child, he has trust issues when it comes to women--issues that even his loving, adoptive family couldn't heal. Now he's convinced that playing the field is the safest way to go. But when a secret of the Clayton family's past collides with Stephanie's search for her biological family, his convictions are fiercely tested. For when Stephanie and Owen meet, the heat generated between their two lost souls may just lead them home--if they can end a pricey power struggle, and surrender to passion. . .