six o'clock
`` Very well , '' I said , `` I will help you , if I can do so and not miss the six-thirty train . What is your plan ? '' `` It is very simple , '' said Henry . `` Our fathers are both quite near-sighted , and as six o'clock draws near they will naturally become greatly excited and nervous , and , therefore , less observant of small things . I have brought with me some burnt cork with which I will blacken my face , and I will change clothes with Lemuel , and , in the one moment necessary to escape , my father will not recognize me . Lemuel , on the other hand , will whiten his face with some powder that Madge has brought , and will wear my clothes , and in the excitement my father will seize him instead of me . '' `` Excellent , '' I said , `` but what part do I play in this ? ''