In 2016, London's HM Prison Holloway - the largest women's prison in Western Europe - closed its doors. In its 160 years it had housed some of the most high-profile female prisoners of all time, including Emmeline Pankhurst, Diana Mitford, Ruth Ellis and Myra Hindley.Bad Girls is the story of a century of women, punishment and crime, based on the true stories of those who have been locked within Holloway's walls. The women the prison has housed came from all corners of Britain - 'witches' and pacifists from Scotland, suffragettes from Huddersfield, and spies from the Isle of Wight - and from all walks of life - its cells have been occupied by socialites and prostitutes, duchesses and the destitute, suffragettes, fascists and the criminally insane. Some women arrived on the verge of death with only the clothes on their backs; others like Jessie Cunningham, convicted of contempt of court, arrived in a Rolls Royce from Mayfair, with footmen carrying her travelling bags.With access to previously unseen archives, journals from Holloway's prisoners and wardens, and interviews with former prisoners and staff - and the children who were born within Holloway's walls - Caitlin Davies shows how the story of HM Prison Holloway reflects changing attitudes to women and crime over more than a century. From the women who escaped the hangman's noose, such as Kitty Byron, who was reprieved for killing her lover in 1902; to those who didn't, such as Ruth Ellis, infamous nightclub manager and the last woman to be executed in 1962; and those who escaped Holloway altogether, such as Zoe Progl - a.k.a. 'Blonde Mickey' - the queen of the underworld who escaped the prison walls in 1960, Bad Girls is a fascinating look at how these rebellious and defiant women changed not only the prison service, but the course of history.