two o'clock
The words were spoken in a very quiet voice . Drummond turned in surprise , his foot in the stirrup , and looked at the speaker , a keen-eyed trooper of middle age , whose hair was already sprinkled with gray . `` Why not , Bland ? '' `` Because we have been along the range for nearly fifty miles below here , sir , and have n't crossed a sign , and because I understand now what I could n't account for at two o'clock , -- what I thought must be imagination . '' `` What was that ? '' `` Smoke , sir , off towards the Gila , north of Ceralvo 's , I should say , just about north of west of where we are . '' `` Why did n't you report it ? ''