The Worsted Viper
The Worsted Viper is a 1943 detective novel by the British writer Gladys Mitchell. It is the fifteenth in her long-running series featuring the psychoanalyst and amateur detective Mrs Bradley. Bradley was one of a number of investigators active during the Golden Age of [Detective Fiction]. Much of the novel takes place on the Norfolk Broads.
In 2000 it was adapted for an episode of the television series The [Mrs Bradley Mysteries] starring Diana Rigg.