Sandra Brown - Where There's Smoke book description:
No one knows why Dr. Lara Mallory came back home to Eden Pass, Texas to open up her medical practice after all these years. But everyone remembers her role in the well-publicized scandal that caused the downfall of White House hopeful Senator Clark Tackett.
So when the iron-fisted matriarch of Tackett Oil uses every weapon in her arsenal to drive her out of town, Lara refuses to go quietly. Yet in this corruption-riddled town, nothing is as it seems.
An explosive secret lurks beneath the surface, threatening Lara at every turn. Her unlikely ally: Key, the hell-raising youngest Tackett son. Thrown together, they're on a dangerous quest to expose the one secret that can destroy the Tackett empire-and anyone who dares to challenge its power.