ten o'clock
`` Here is a card left for you by a decorated gentleman , '' explained the concierge . `` He came in an elegant carriage , and said this was urgent . '' Taking the card , Louis approached the light and read : '' _ Commander de La Miraudière _ , '' _ 17 Rue du Mont-Blanc _ . '' _ Will expect M. Louis Richard at my home , between nine and ten o'clock to-morrow morning , to communicate something of grave importance , which admits of no delay . _ '' `` Commander de La Miraudière ? I never heard the name , '' said Louis , gazing curiously at the card ; then , as he mechanically turned it over , his eyes caught sight of these words in pencil : '' _ Mariette Moreau , with Madame Lacombe , Rue des Prêtres-Saint-Germain-l'Auxerrois . _ '' The commander had noted Mariette 's address on the back of his card , and unconsciously used the same in writing to Louis to request an interview .