Agatha Mary Clarissa Christie, The Big Four (1927 (reprint 1985))
“ Then there was a stir of draperies behind us, and the Countess Vera Rossakoff came in. “Ah!” said Number Four. “Our valued and trusted lieutenant. An old friend of yours is here, my dear lady.” The countess whirled round with her usual vehemence of movement. “God in Heaven!” she cried. “It is the little man! Ah! but he has the nine lives of a cat! Oh, little man, little man! Why did you mix yourself up in this?” “Madame,” said Poirot, with a bow. “Me, like the great Napoleon, I am on the side of the big battalions.” ”
