In 1868, The Times reported that poisons contained in dyes were affecting the public's health. A doctor informed a London magistrate that brilliantly coloured socks had caused severe "constitutional and local complaint" to several of his patients. In one case, a patient's foot had become so swollen that his boots had to be cut off. Respected chemist, William Crookes, offered to identify the poison if doctors would send him samples of the deadly socks. The story of how he solved the mystery gives this book its title and forms the basis of the first chapter. Written by a respected science...