four o’clock
`` And so , mamma , '' said Camille , who continued to scrutinise her mother and Gerard , `` you are going to take us to the Princess 's _ matinee _ ? '' `` By-and-by , yes . Only I sha n't be able to stay there with you . I received a telegram from Salmon about my corsage this morning , and I must absolutely go to try it on at four o'clock . '' By the slight trembling of her mother 's voice , the girl felt certain that she was telling a falsehood . `` Oh ! '' said she , `` I thought you were only going to try it on to-morrow ?