Clifford Ball, The Werewolf Howls (1941)
“ His father was old. "You had better go," said Etienne Delacroix, as his keen eyes caught the fleeting expression on his son's face. His fingers drummed a muffled tattoo upon the fine edge of his desk, the only sign of his nervous condition that he could not entirely control. "Monsieur the Mayor's opinion is that the wolf is stronger when the moon is full. But it is mine that tonight it will be easier to discover." The three turned to the door, but as they reached the threshold Monsieur Delacroix beckoned to the eldest. "An instant, Pierre. I speak to you alone." ”
