The devil to pay - William W. Johnstone

It begins with a simple act of kindness--and ends in a shocking night of violence. A homeless family shows up on Kate Kerrigan's doorstep, seeking refuge from a vengeful rancher's wrath. Seeing their desperation--and fear--the West Texas matriarch welcomes the family into her home. But her charity turns out to be an invitation to disaster. First, the rancher and his henchmen come gunning for her houseguests. They break into Kate's mansion. They shoot her butler, brutalize her staff, and try to force themselves on Kate. Then the real slaughter begins. When the smoke clears, Kate vows to send these murderous bastards straight to hell. Even if she has to dance with devil himself . . .