eight o'clock
`` Perhaps I shall . '' But she could not help feeling that in some way she had seen what she had seen -- alone . They sat a little longer in silence , and then Mary Louise straightened in her seat and called to him briskly : `` We _ must _ be going . Why , it must be eight o'clock . What have I been thinking of ? '' `` That 's what I 'd like to know , '' he laughed . `` Come , take me home , man .