nine o'clock
He turned , made a sound of assent , and went on . ` When ? ' asked Rose lightly . ` For the nine o'clock train . ' ` There should be a law against interfering with people 's breakfast hour , ' said Rose ; ` though , to be sure , a guest may as well get himself gone early and be done with it . How you and Robert raced , Cathie ! We did our best to catch you up , but the pace was too good . '