THE BIG FOUR (FREE DELIVERY)
Framed in the doorway of Hercule Poirot's bedroom stands an uninvited guest, coated from head to foot in dust. The man stares for a moment, then he sways and falls. Who is he. . . Is he suffering from shock or just exhaustion. . . Above all, what is the significance of the figure 4, scribbled over and over again on a sheet of paper. . . Poirot finds himself plunged into a world of international intrigue, risking his life and that of his twin brother to uncover the truth.