Maurice Leblanc,
The Teeth of the Tiger — Chapter VIII. The Devil's Post-Office
(1921)
“ Don Luis felt easy, out of the reach of danger; and he talked to the girl with an indifferent air, as he might have talked to anybody.But with what a feverish interest he studied her unobserved! He watched the expression of her face, at once calm and eager, and a painful sensitiveness which showed under the placid mask and which, difficult to control, revealed itself in the frequent quivering of the lips and nostrils."Who are you? Who are you?" he felt inclined to exclaim. "Will nothing content you, you she-devil, but to deal out murder all round? ”
