Cyanide Wells - Marcia Muller

Fourteen years after his wife's disappearance branded him a murderer and ruined his life. Matthew Lindstrom receives an anonymous phone call revealing that Gwen is alive...and well aware of the wreckage she left behind. Seeking answers and revenge, he comes to the isolated town of Cyanide Wells. Here, where the surrounding thick forest conceals twisted paths and old sins, Matt begins to learn the details of Gwen's new life. But before he can confront her, his ex vanishes once more. Now Matt must join forces with Carly McGuire, a local woman with secrets of her own, and begin a desperate hunt for the truth about past crimes and Gwen's fate. For hovering over him are suspicions that can destroy him once again.