With all docility Saccard started off again, knowing that lucky days do not come twice over. But he had again dismissed his cab, having hoped to go home--a distance of a few steps--on leaving Daigremont's; and so, as the rain seemed to have stopped at last, he descended the street on foot, happy to feel under his heels the pavement of Paris, which he was reconquering. In the Faubourg Montmartre a few drops of rain made him take to the covered passages, the Passage Verdeau, the Passage Jouffroy and the Passage des Panoramas, which last brought him out again into the Rue Vivienne. Here at the moment when he was about to enter Kolb's he once more started and stopped. A soft, crystalline music, coming as it were from the bowels of the earth, like the voices of legendary fairies, enveloped him; and he recognised the musical voice of gold, the continual jingle which pervaded this neighbourhood of trade and speculation, and which he had already heard in the morning. The end of the day was like its beginning; and the caressing sound of this voice made him radiant, it seemed like the confirmation of a good omen. Kolb happened to be downstairs in the casting shop, and, as a friend of the house, Saccard went down to join him there. In the bare basement, ever lighted by large flaming gas-jets, the two founders were emptying by the shovelful several zinc lined boxes, filled that day with Spanish coins which they threw into the melting-pot on the great square furnace. The beat was intense; they had to shout to make themselves heard amid this harmonica-like music vibrating under the low vaulted ceiling. Freshly cast ingots, golden paving-stones, having all the glittering brilliancy of new metal, stood in rows upon the table of the assayer, who determined the standard. And since morning more than six millions of francs had passed through the founders' hands, assuring the banker a profit of no more than three or four hundred francs; for the difference realised, between two quotations is of the smallest, being measured by thousandths, so that in gold arbitrage, as the traffic is called, a profit only accrues when large quantities of metal are dealt with. Hence this tinkling of gold, this streaming of gold, from morning till night, from year's end to year's end, in the depths of that cellar, whither the gold came in coins, and whence it went away in ingots, to come back again in coins and go away again in ingots indefinitely, with the sole object of leaving in the trader's hands a few particles of the precious metal. As soon as Kolb--a little man with a very dark complexion, whose nose, shaped like an eagle's beak, and emerging from a thick beard, proclaimed his Jewish origin--had understood Saccard's offer, which the gold almost drowned with a sound of hail, he accepted it. 'Certainly,' he cried. 'I am very glad to be in it, if Daigremont is! And thank you for having put yourself out on my account.'