Mouret shrugged his shoulders. “If Gaujean doesn't look sharp,” replied he, “Gaujean will be floored. What do they complain of? We pay ready money and we take all they can make; it's strange if they can't work cheaper at that rate. Besides, the public gets the benefit, and that's everything.” The shopman was emptying the second case, whilst Bouthemont was checking the pieces by the invoice. Another shopman, at the end of the counter, was marking them in plain figures, and the checking finished, the invoice, signed by the manager, had to be sent to the chief cashier's office. Mouret continued looking at this work for a moment, at all this activity round this unpacking of goods which threatened to drown the basement; then, without adding a word, with the air of a captain satisfied with his troops, he went away, followed by Bourdoncle. They slowly crossed the basement floor. The air-holes placed at intervals admitted a pale light; while in the dark corners, and along the narrow corridors, gas was constantly burning. In these corridors were situated the reserves, large vaults closed with iron railings, containing the surplus goods of each department. Mouret glanced in passing at the heating apparatus, to be lighted on the Monday for the first time, and at the post of firemen guarding a giant gas-meter enclosed in an iron cage. The kitchen and dining-rooms, old cellars turned into habitable apartments, were on the left at the corner of the Place Gaillon. At last he arrived at the delivery department, right at the other end of the basement floor. The parcels not taken away by the customers were sent down there, sorted on tables, placed in compartments each representing a district of Paris; then sent up by a large staircase opening just opposite The Old Elbeuf, to the vans standing alongside the pavement. In the mechanical working of The Ladies' Paradise, this staircase in the Rue de la Michodière disgorged without ceasing the goods swallowed up by the slide in the Rue Neuve-Saint-Augustin, after they had passed through the mechanism of the counters up above. “Campion,” said Mouret to the delivery manager, a retired sergeant with a thin face, “why weren't six pairs of sheets, bought by a lady yesterday about two o'clock, delivered in the evening?” “Where does the lady live?” asked the employee. “In the Rue de Rivoli, at the corner of the Rue d'Alger--Madame Desforges.” At this early hour the sorting tables were bare, the compartment only contained a few parcels left over night Whilst Campion was searching amongst these packets, after having consulted a list, Bourdoncle was looking at Mouret, thinking that this wonderful fellow knew everything, thought of everything, even when at the supper-tables of restaurants or in the alcoves of his mistresses. At last Campion discovered the error; the cashier's department had given a wrong number, and the parcel had come back.