When Quentin left Paris that night with Turk and his luggage, he was not the only passenger bound for Brussels. At the Gare du Nord two men, one suspiciously like the Duke Laselli, took a compartment in the coach just ahead of Quentin. The train was due to reach Brussels shortly after midnight, and the American had telegraphed for apartments at the Bellevue. There had been a drizzle of rain all the evening, and it was good to be inside the car, even if the seats were uncomfortable. Turk and his master were the only passengers in the compartment. The watchful eyes of the former had seen several persons, men and women, pass through the aisle into which the section opened. One woman paused at the entrance as if about to enter. She was fair to look upon and Turk gallantly moved, presenting a roomy end of his seat to her. She passed on, however, and the little ex-burglar glanced sharply at his master as if to accuse him of frightening the fair one away. But Quentin was lying back, half-asleep, and there was nothing repellent about the untroubled expression on his face. Before reaching Le Cateau the same lady passed the entrance and again glanced inside. Turk was now asleep, but his master was staring dreamily toward the aperture leading to the aisle. He saw the woman's face for an instant, and it gradually dawned upon him that there was something familiar about its beauty. Where had he seen her before? Like the curious American he was, he arose a few minutes later and deliberately walked into the aisle. He passed two compartments before he saw the young woman. She was alone and was leaning back, her eyes closed. Quentin observed that she was young and beautiful and possessed the marks of fashion and refinement. As he stood for a moment looking upon the face of the dozing French woman, more certain than ever that he had seen her recently, she opened her eyes with an affrighted start. He instantly and in some embarrassment turned to escape the eyes which had caught him in a rare bit of impertinence, but was surprised to hear her call softly: “Monsieur!” “Mademoiselle,” he replied, pausing, “can I be of service to you?” “I must speak with you, M. Quentin. Come inside. I shall detain you but a moment, and it is so very important that you should hear me.” She was now sitting upright, visibly excited and confused, but very much in earnest. “You know my name,” he said, entering and dropping to the seat beside her. “Where have we met? Your face is familiar, but I am ashamed to admit--” “We have no time to talk of that. You have never met me, and would not know who I am if I told you. Had it not been for that horrid little man of yours I should have boldly addressed you sooner. I must leave the train at Le Cateau, for I cannot go on to Quevy or Mons. It would not be wise for me to leave France at this time. You do not know me, but I wish to befriend you.”