twelve o'clock
`` So , then , we can arrange something now if you like '' -- he glanced at the clock -- `` Ah ! '' `` Must you go ? '' she asked . `` Yes , by twelve o'clock I ought really to ... '' She was seized with an intense uneasiness at the prospect of having to be alone again so soon , and she said : `` I have plenty of time -- as much as you like . But , of course , it must not be too late . '' `` Is your cousin so strict then ? '' `` But -- '' she said , `` this time , as a matter of fact , I 'm not staying with her , you see . ''