Title: The big four,
Authors: Christie, Agatha, 1890-1976
Publisher: W. Collins sons & co., ltd.
Year: 1927
Subjects: Poirot, Hercule Fiction.; Private investigators England Fiction
Abstract: Framed in the doorway of Poirot's bedroom stands an uninvited guest, coated from head to foot in dust. The gaunt man's face stares for a moment then sways and falls. Who is he and what is the significance of the figure four scribbled repeatedly on a piece of paper?