When he had set them to work, Maigret had had a merry, almost fierce glint in his eye. He had set them loose on the house like a pack of hounds on the trail of a scent, encouraging them not with his voice, but by his whole attitude . . . would events have played out in the same manner, if the man from Rue de la Ferme hadn't been a heavyweight like him, both physically and psychologically?'