Salvation on Sand Mountain offers a haunting exploration of faith, delving into the mysterious and captivating world of holiness snake handling in Southern Appalachia. The book begins with a journalistic assignment that quickly transforms into a profound journey.

Dennis Covington, a New York Times reporter, initially covers the trial of an Alabama pastor convicted of attempting to murder his wife with poisonous snakes. However, this assignment leads him deep into the heart of a world characterized by unshakable faith, where participants handle deadly snakes, drink strychnine, and perform acts of healing and resurrection.

Set against the backdrop of Appalachia, this narrative is not only a chilling account of religious extremity but also an introspective journey, as Covington finds himself drawn into the practices he set out to observe.