ten o’clock
`` Listen , '' he said , and read aloud : RUE DE ST. QUINTAINE . PARIS . DEAR Mr. RUFF , It is a long time since we had the pleasure of a visit from you . It is the desire of Madame that you should join our circle here on Thursday evening next at ten o'clock . SOGRANGE . Violet was a little perplexed . She failed , somehow , to recognize the sinister note underlying those few sentences , `` It sounds friendly enough , '' she remarked .