ten o'clock
He is , meanwhile , at the Trois Freres . He has the honor of being my fellow-lodger , '' suavely observed the colonel . `` There , '' said the duke , as he folded and directed his note , `` no time should be lost in an affair of this sort . It is not yet ten o'clock . You may even deliver this challenge to-night , if you will be so kind . '' `` Certainly , '' murmured the graceful colonel rising . `` I leave everything absolutely in your hands .