A character from Agatha Christie's mystery novel And Then There Were None; she's an elderly woman of unyielding principles who uses the Christian Bible to justify her inability to show compassion or understanding for others. She dismissed her maid, Beatrice Taylor after discovering she was pregnatt out of wedlock. The girl later threw herself into a river and drowned. It is also implied that she told the girl's parents, who then disowned her, adding to her responsibility. Despite this she feels no guilt.

Lawrence Wargrave killed her by injecting her with an injection of potassium cyanide—the injection mark on her neck is an allusion to a bee sting, mirroring one of the lines from the nursery rhyme "Ten Little Indians":

Six little Indian boys playing with a hive;

A bumblebee stung one and then there were five.