four o'clock
` I ca n't thank you . But when you come back I shall play to you . ' I smiled . 'Till four o'clock , ' I said . ` Magda , ' he called again , just as I was leaving , ` bring one of your books with you , will you ? ' I hesitated , with my hand on the door . When I gave him my name he had made no sign that it conveyed to him anything out of the ordinary .