"A Nest of Vipers" is the twenty-first novel in the thrilling Inspector Montalbano series by Andrea Camilleri. On a quiet Sunday morning, Inspector Montalbano is called to a crime scene on the Sicilian coast. A man discovers his father dead at his country house in Vigata, his body lying on the dining room floor, his morning coffee spilled on the table, and a single bullet at the base of his skull. Initial indications suggest that the son has the greatest motive for his father's untimely death, an idea that his sister can't help but reinforce. However, as Montalbano delves deeper into the case and uncovers the corrosive life the victim led, it becomes clear that half of Vigata has a motive for his murder, and the case will not be as straightforward as the inspector initially thought. "A Nest of Vipers" is followed by the twenty-second exciting mystery, "The Pyramid of Mud".