Make Your Selection: The Affair by Lee Child

Carter Crossing, Mississippi, 1997. A lonely railroad track. A crime scene. A murder coverup. Jack Reacher is tasked with going undercover to unearth the truth. His mission -- control the local police and then vanish without a trace. When he gets to Carter Crossing, he meets with Sheriff Elizabeth Deveraux, a justice-seeking local. Uncertain they can trust one another, Reacher and Deveraux reluctantly join forces as events threaten to spin the entire investigation out of control.