midnight
`` And -- '' `` The army will advance in two columns . The right -- of Sedgwick 's and Warren 's corps -- will cross at Germanna Ford . The left , consisting of Hancock 's corps , at Ely 's ford below . They have pontoon and bridge trains -- and the movement will commence at midnight on the third -- two days from now . '' Stuart knit his brows , and buried his hand in his beard . Suddenly he called out to the orderly : -- `` Have two horses saddled in five minutes ! '' And seizing his hat , he said : -- `` Get ready to ride to General Lee 's head-quarters with me , Nighthawk ! ''