"Very well," Stewart promised. "But once we are across the border, I warn you that I intend to throw the mask away, and that I shall have certain very serious things to say to you." "And I promise to listen patiently," she answered, smiling. At the entrance to the station, they were stopped by a guard, who demanded their tickets. Stewart was about to produce his, when his companion touched him on the arm. "Hasten and get them, Tommy," she said. "I will wait here." And Stewart, as he hurried away, trembled to think how nearly he had blundered. For how could he have explained to the authorities the fact that he was traveling with a book of Cook's circular tickets, while his wife was buying her tickets from station to station? There was a long line of people in front of the ticket-office, and their progress was slow, for two police officers stood at the head of the line and interrogated every applicant for a ticket before they would permit it to be given him. Stewart, as he moved slowly forward, saw two men jerked violently out of the line and placed under arrest; he wondered uncomfortably if the officers had any instructions with regard to him, but, when his turn came, he faced them as unconcernedly as he was able. He explained that he and his wife were going to Brussels, showed his passport, and finally hastened away triumphant with the two precious bits of pasteboard. It seemed to him that the last difficulty had been encountered and overcome, and it was only by an effort that he kept himself from waving the tickets in the air as he rejoined his companion. In another moment, they were past the barrier. Hans was permitted to enter with them, and mounted guard over the luggage. The platform was thronged with a motley and excited crowd, among whom were many officers in long gray coats and trailing swords, evidently on their way to join their commands. They were stalking up and down, with a lofty disregard for base civilians, talking loudly, gesticulating fiercely, and stopping ever and anon to shake hands solemnly. Stewart was watching them with an amusement somewhat too apparent, for his companion suddenly passed her arm through his. "I should like to walk a little," she said. "I have been sitting too long." Then, in a lower tone, as they started along the platform, "It would be more wise not to look at those idiots. They would seek a quarrel with you in an instant if they suspected it was at them you were smiling."