The mystery of the Blue Train #978088

It was close on midnight when a man crossed the Place de la Concorde. In spite of the handsome fur coat which garbed his meagre form, there was something essentially weak and paltry about him.
A little man with a face like a rat. A man, one would say, who could never play a conspicuous part, or rise to prominence in any sphere. And yet, in leaping to such a conclusion, an onlooker would have been wrong. For this man, negligible and inconspicuous as he seemed, played a prominent part in the destiny of the world. In an Empire where rats ruled, he was the king of the rats.
Even now, an Embassy awaited his return. But he had business to do first—business of which the Embassy was not officially cognizant. His face gleamed white and sharp in the moonlight. There was the least hint of a curve in the thin nose. His father had been a Polish Jew, a journeyman tailor. It was business such as his father would have loved that took him abroad to-night.
He came to the Seine, crossed it, and entered one of the less reputable quarters of Paris. Here he stopped before a tall, dilapidated house and made his way up to an apartment on the fourth floor. He had barely time to knock before the door was opened by a woman who had evidently been awaiting his arrival. She gave him no greeting, but helped him off with his overcoat and then led the way into the tawdrily furnished sitting-room. The electric light was shaded with dirty pink festoons and it softened, but could not disguise, the girl's face with its mask of crude paint. Could not disguise, either, the broad Mongolian cast of her countenance. There was no doubt of Olga Demiroff's profession, nor of her nationality.