nine o'clock
I must do things for other girls that have no one and nothing -- as they 've done this for me . '' And through Olga 's mind floated like a glad refrain , '' ` Love is the joy of service so deep that self is forgotten . ' '' Olga was glad -- glad with all her heart -- for Lizette , and yet that first evening she sat in her own room dreading to hear the tap on her door which she expected every moment . At nine o'clock , however , it had not come , and then she went across and did the knocking herself . `` Come in , come in , '' Lizette cried , as she opened her door . `` I 've been expecting you over all the evening , '' Olga said , `` and when you did n't come I was afraid you were sick -- or something . '' Lizette looked at her with a queer little smile .