In this intriguing detective novel, Dr. John Thorndyke, a forensic expert, is called to investigate the mysterious illness of a man residing at 31 New Inn. What begins as a medical consultation soon turns into a gripping investigation, as Thorndyke uncovers clues of poisoning and a sinister plot. Blending forensic science with classic detective work, Freeman delivers a masterful mystery filled with suspense, detailed investigation, and twists.