four o’clock
`` Well , what then ? '' asked the girl . `` Why , then I asked him to come up here at four o'clock and hear what an assistant of mine would say about the case . '' `` At four o'clock ! '' cried the girl in terror ; `` then he may be here at any moment . '' `` He is here now ; he is in the next room . Come in , and I will introduce you , and then I want you to tell him all the circumstances which lead you to believe that it was the Princess herself whom he met .