nine o'clock
But I must permit you to know your own wishes better than I can hope to know them , Miss Cumberly . Therefore '' -- Helen was persistently holding out her hand -- `` good night ! Might I venture to telephone to YOU in the morning ? We could then come to some arrangement , no doubt '' ... `` You might not find me at home '' ... `` But at nine o'clock ! '' `` It allows me no time to make up my party ! '' `` But such a party must not exceed three : yourself and two others '' ... `` Nevertheless , it has to be arranged . '' `` I shall ring up to-morrow evening , and if you are not at home , your maid will tell me when you are expected to return . ''