midnight
They were sporadic appearances that night . No attacks were reported . But in all , at least a thousand wraithlike figures of men must have been seen . The visitations began at midnight and ended with dawn . To anyone , reading in the morning papers or hearing from the newscasters that `` ghosts '' were seen at Savannah , the thing had no significance . But in Washington , where officials took a summary of all the reports and attempted an analysis of them , one fact seemed clear . The wraiths were traveling northward .