Egerton Castle,
The Four Invisibles — Chapter 5
(1919)
“ M. de Gournay looked with intense curiosity at the celebrated Vidocq, the wily, formidable sleuth-hound whose name was already a terror to whom it might concern: a broad-shouldered massive-headed man, whose appearance, out of service, was that of some sturdy, good-tempered sailor. On duty, there was none who could assume more convincingly the most unlikely disguises. Vidocq studied the card, repressed a grin of satisfaction, saluted with the hand and disappeared. ”
