about ten
o'clock
`` More silliness ! '' Croyden retorted , as he turned away to search for his partner . When the Hop was over , they said good-night at the foot of the stairs , in the Exchange . `` We shall see you in the morning , of course -- we leave about ten o'clock , '' said Miss Cavendish . `` We shall be gone long before you are awake , '' answered Croyden . And , when she looked at him inquiringly , he added : `` It 's an appointment that may not be broken . '' `` Well , till Northumberland , then ! ''