The Slaves of Paris by Emile Gaboriau

Van Klopen, the man-milliner, knew Paris and its people thoroughly like all tradesmen who are in the habit of giving large credit. He knew all about the business of his customers, and never forgot an item of information when he received one. Thus, when Mascarin spoke to him about the father of the lovely Flavia, whose charms had set the susceptible heart of Paul Violaine in a blaze, the arbiter of fashion had replied --

"Martin Rigal; yes, I know him; he is a banker. " And a banker, indeed, Martin Rigal was, dwelling in a magnificent house in the Rue Montmartre. The bank was on the ground floor, while his private rooms were in the story above. Though he did not do business in a very large way, yet he was a most respectable man, and his connection was chiefly with the smaller tradespeople, who seem to live a strange kind of hand-to-mouth existence, and who might be happy were it not for the constant reappearance of that grim phantom -- bills to be met. Nearly all these persons were in the banker's hands entirely. Martin Rigal used his power despotically and permitted no arguments, and speedily quelled rebellion on the part of any new customer who ventured to object to his arbitrary rules. In the morning the banker was never to be seen, being engaged in his private office, and not a clerk would venture to knock at his door. Even had one done so, no reply would have been returned; for the experiment had been tried, and it was believed that nothing short of an alarm of fire would have brought him out.