The Riot Act was passed by the British Parliament in 1714, the first year of the reign of George I, and came into effect in August 1715. This was a time of widespread social disturbance, as the preamble describes; the Act sought to put an end to this. A group of twelve or more people, “being unlawfully, riotously and tumultuously assembled”, would be read a proclamation; they must disperse within an hour, on pain of death. The same fate would befall anyone preventing the reading of the proclamation, or damaging buildings while on a riot...

When Ken Holt's father, the famous newspaper writer, comes home for a Christmas visit, one of the gifts he brings is an antique iron box. Soon after he arrives a serious of unexplained events occur, including an attempted burglary. A hunch that the iron box is at the center of these occurrences sends Ken Holt and his friend Sandy Allen on an exciting adventure to solve the mystery! Ken Holt was the central characters in a series of 18 mystery stories for boys written by Sam and Beryl Epstein under the pseudonym Bruce Campbell.