about ten
o'clock
May I ask you when that was ? '' `` When ? '' I replied , `` when ? Why , last evening , of course , at about ten o'clock . I left my man Sawyer orders to call me at nine o'clock . What has become of Sawyer ? '' `` I ca n't precisely tell you that , '' replied my companion , regarding me with a curious expression , `` but I am sure that he is excusable for not being here .