"Heinric von Lertz will not wait until the day set for the destruction of the Bethlehem steel works to attempt it," she said. "The news from San Francisco will cause him to attempt the climax of the plot planned by Von Papen before it is discovered. Even now he may be starting on it." She then gave him the address of the artisan in Harlem who was inserting explosives in the hollow lumps of coal for use at Bethlehem. Grant tarried hardly longer than was required to express his thanks after receiving this information and hurried away. But he and his men arrived too late. Evidence aplenty was found to prove that Madam Stephan's description of the work that was being done had been true. But the three men who had occupied it were gone. "They left but a moment since, sir," volunteered a woman who lived on the same floor. "A sleek light mustached young man called, and they left with some satchels in a taxicab." So Heinric von Lertz had taken the course which Madam Stephan expected of him. Grant did some quick thinking. Hastily running over timetables which he carried in his pocket he found that a train was leaving shortly for Bethlehem and taking a long chance he ordered his men back into the machine that had taken them to disregard speed regulations and quickly arrived at the station. With but a few minutes to spare they burst into the large train room. Suddenly Grant raised his arm and pointed. Heinric von Lertz was at one of the track gates talking earnestly, to three men. "Stewart, Cavanaugh, come with me, we must keep out of sight of Von Lertz," cautioned Grant. "You other men are not known to him. Keep the men to whom he is talking, in sight. We will meet you on the train." Grant, and his two most trusted men, found their way to the train through the employee's gate, opened to them by their Secret Service badges. On the train he found the three German conspirators well covered by his men. Von Lertz had not boarded the train, according to a report of one of the operatives. It was after night-fall when the train landed them in Bethlehem. The sky was lurid with the glare from the big gun works, incessantly turning out large calibre artillery, by means of three shifts of workmen who kept the wheels turning night and day. The three conspirators slunk off into the shadows leading toward the settlement of the foreign laborers in the big plant, closely followed by Grant and his men. In one of the poorest sections of the city the men mounted an outer stairway leading to the top floor of a two-storied building. After some delay they were admitted. Ten minutes later the figure of a woman came down the stairway, stepping cautiously and carrying gingerly some objects in her apron. Hastily assigning two men to keep her in sight, he organized the remainder of his force for a raid.