Third Girl

About “Third Girl”

This 1966 novel by Agatha Christie centers on three young women sharing a London flat: a personal secretary, an artist, and a third who interrupts Hercule Poirot's breakfast to insist she is a murderer before disappearing. Poirot learns of rumours surrounding this mysterious third girl, her family, and her disappearance, needing hard evidence before he can pronounce her guilty, innocent, or insane.