five o'clock
A pass ahead , which they must cross , was full of snow . He was anxious , too , as to Dick 's physical condition . The twitching was gone , but he was very pale and he slept like a man exhausted and at his physical limit . But the necessity of crossing the pass before nightfall or of waiting until dawn to do it drove Bassett back from an anxious reconnoitering of the trail at five o'clock , to rouse the sleeping man and start on again . Near the pass , however , Dick roused himself and took the lead . `` Let me ahead , Bassett , '' he said peremptorily . `` And give your horse his head .