Most killers are men. But never turn your back on a woman. Murder, madness and maliciousness abound in this hangman's dozen of she devils. Culled from over five hundred years of bloody history by crime writer and journalist Douglas Skelton, these pages uncover the mad, the bad and the dangerous to know. - Vengeful Queen Joan, who made her husband's assassins pay a fearful price for their treason. - Beautiful Jean Livingstone, who bravely faced The Maiden after murdering her abusive husband. - Child killers Helen Waldie and Jean Torrance, who sold their victim to anatomists. - Baby farmer Jessie King, who dealt in flesh...and death. - Notorious Sheila Garvie, convicted of assisting in the murder of her husband in one of the most sensational trials of the 1960s. These cases, together with a host of others, prove that women are far from the gentler sex.