eleven o'clock
While he was waiting for the connection to be made , Sylvester entered the room and silently showed a visiting-card to his chief . It was Olive 's card . Acting on a sudden impulse , she had motored to the office to see this mysterious John Rivière before he should evade her . She knew that the interview was to be at eleven o'clock , and by thus calling in person , she would make certain of meeting him . Larssen said aloud to his secretary : `` Show her up when I ring next . '' Then to Matheson : `` There 's no need to ` phone . Your wife is waiting below . ''