The announcement that dinner was ready put an end to any further preparations for the time being. The meal was a quiet one and there was but little conversation. Mrs. Cook's thoughts were of Harold and she was greatly worried about him; particularly as she did not know where his regiment had been sent. Mr. Cook, although he too was concerned about his elder son, was occupied principally with anxiety as to the plots that seemed to be brewing all about him, and the possible damage to his factory. Bob, needless to say, was highly excited over the prospects of adventure that the evening held forth for him. Finally dinner was over. Mr. Cook dispatched Bob to the garage with a message to Heinrich to have the car ready in half an hour. As Bob ran across the lawn he met Lena returning from the garage. "Aha," he thought as he greeted her, "you saw Heinrich all right, didn't you?" He was fully convinced now that their cook and chauffeur were agents of Mr. Wernberg, and partners in crime. A moment later he reached the garage. "Father wants you to bring the car around in half an hour," he announced to Heinrich, who was engaged in putting on a clean collar and necktie. "What!" exclaimed Heinrich angrily. Bob had never before seen their chauffeur question any order that his father had given. "I can't." "Those are his orders," said Bob, eyeing Heinrich closely. "Does he want me to drive him out?" "He does." "But I can't," cried Heinrich. "I can't, I tell you; I have an appointment." "I guess you'll have to break it then," was Bob's retort. Heinrich wrung his hands in desperation. "What shall I do?" he moaned. "What shall I do?" "Can't you change your appointment?" "I do not think so," wailed Heinrich. "This iss terrible. Do you think your father would change his mind if I should speak to him?" "I'm sure he wouldn't," said Bob. "I know he wants the car and he wants you to drive it. I heard him say that positively." "This iss terrible," repeated Heinrich. "What will they do mitout me?" "Who?" "My friends." "It's too bad," said Bob, more convinced every moment that mischief was afoot that evening. "I don't know what you can do about it though." "Of course I have to go mit your father," said Heinrich finally, heaving a great sigh. "I wonder if he will want the car for long." "I think he will." "Very well," said Heinrich, becoming resigned to his fate, "I will be there but only because I do not wish to lose my job. But I fear something will happen." "That's just what we want to prevent," thought Bob grimly. "All right then, Heinie," he said aloud. "Father will expect you in half an hour." He hurried back to the house, warned his father that he should keep Heinrich always within sight, and related his conversation with the chauffeur as an argument for this course. Then he went upstairs, two steps at a time to make ready his disguise. While he was there Hugh arrived and went up to Bob's room. "What are you doing, Bob?" he demanded.