However, it was only natural that they should meet again during the evening. And it was only natural that Grant should ask her to dance with him. More, it was only natural that as he looked into her eyes, as he felt the firm swing and graceful lift of her to the swaying music of the foxtrot, that he should wish more than ever that the stain of her apparent friendship for Von Lertz should some day resolve into an innocent one after all. As for Dixie-- As she was swept away again in the arms of Harrison Grant, following the encore, Dixie wished with a sudden impulse that the touch of those arms might some day mean more than the embrace of a dance, she wished that she might tell this man whom she knew to be the president of the Criminology Club that she was really a compatriot, that she was working along the same lines as himself, struggling for the same ideals fighting for-- But one could only obey orders. Besides, the dance had ended, and in the foreground, waiting and fretting, stood Heinric von Lertz. A few brief acknowledgments of the pleasure of the dance and they parted, Dixie Mason to take her place at the side of the German plotter, Harrison Grant to hurry forward at the signal of Cavanaugh from the doorway. Grant found him nervous, irritable. "The dangerous moment has come," he announced shortly. "Look!" Far at one side of the room stood a tall German, apparently chatting with his fellow country-people as they strolled about after the dance. But as he watched, Grant saw that the conversations were extremely short and that following each one, every German and his companion turned toward the cloakrooms. Billy Cavanaugh's voice broke in once more. "He's warning them all to leave," said the operative. "He's been doing it for the last five minutes. Half the Germans in the place are gone now. It's nearly time for the attempt." Harrison Grant bent close. "Send the men to make the rounds of the patrolmen," he ordered quickly. "Tell them to keep their eyes open wider than ever. Allow absolutely no one to enter this hotel." "Yes sir." "Double the guards on every door. What has been done in regard to the other searches that I ordered?" "Everything's been accomplished. The hotel management has made the rounds of the whole place with pass keys. Every piece of baggage that cannot be vouched for has been examined. Nothing has been found." "Good. Hurry to those patrolmen. I--" For Grant had seen in the entrance to the cloakroom, the form of Heinric von Lertz, his coat over his arm, waiting impatiently for Dixie Mason. With a sudden determination, he hurried forward, to reach the entrance, just as Miss Mason came forth, adjusting a loose fold of her opera cloak. Grant bowed. "Not going?" Miss Mason smiled. "I assure you it isn't my desire," she said quickly. "Mr. Von Lertz simply insists on it, though. I never was having a better time in my life!" Harrison Grant turned, to smile into the face of Heinric von Lertz.