"I have a warehouse myself down in these parts," he remarked, as he struck the match, "but I don't allow my people to work as late as that." He pointed across the way, and the policeman smiled. "They are very often late there, sir," he said. "It is a Continental wine business, and there's always one or two of them over time." "It's bad business, all the same," de Grost declared pleasantly. "Good-night, policeman!" "Good-night, sir!" De Grost crossed the road diagonally, as though about to take the short cut across London Bridge, but as soon as the policeman was out of sight he retraced his steps to the building which they had been discussing, and, turning the battered brass handle of the door, walked calmly in. On his right and left were counting-houses framed with glass; in front, the cavernous and ugly depths of a gloomy warehouse. He knocked upon the window-pane on the right and passed forward a step or two, as though to enter the office. The boy who had been engaged in the left-hand counting-house came gliding from his place, passed silently behind the visitor, and turned the key of the outer door. What followed seemed to happen as though by some mysteriously directed force. The figures of men came stealing out from the hidden places. The clerk who had been working so hard at his desk calmly divested himself of a false moustache and wig, and, assuming a more familiar appearance, strolled out into the warehouse. De Grost looked around him with absolutely unruffled composure. He was the centre of a little circle of men, respectably dressed, but every one of them hard-featured, with something in their faces which suggested not the ordinary toiler but the fighting animal--the man who lives by his wits and knows something of danger. On the outskirts of the circle stood Bernadine. "Really," de Grost declared, removing his cigarette from his mouth for a moment, "this is most unexpected. In the matter of dramatic surprises, my friend Bernadine, you are most certainly in a class by yourself." Bernadine smiled. "You will understand, of course," he said, "that this little entertainment is entirely for your amusement--well stage-managed, perhaps, but my supers are not to be taken seriously. Since you are here, Baron, might I ask you to precede me a few steps to the tasting office?" "By all means," de Grost answered. "It is this way, I believe." He walked with unconcerned footsteps down the warehouse, on either side of which were great bins and a wilderness of racking, until he came to a small glass-enclosed office built out from the wall. Without hesitation he entered it, and, removing his hat, selected the more comfortable of the two chairs. Bernadine alone of the others followed him inside, closing the door behind. De Grost, who appeared exceedingly comfortable, stretched out his hand and took a small black bottle from a tiny mahogany racking fixed against the wall by his side.