half past seven
`` Worrying over my part , '' she explained . `` Have n't you committed it yet ? Say it now . ` It is half past seven , my lord . ' All you have to do is to remember that it comes in the second act and not in the first or third . '' `` Good night , '' said Miss Cameron , giving her hand to Barnes at the door . She was leaning on Miss Thackeray 's arm .