Across the Valley to Darkness continues the story as Duane's decision to set out on his own to join Bragg's army at Tullahoma proves to be a mistake. A rapid chain of events carries him from capture by renegade Union cavalry to near death in a blizzard to Lee's Army of Northern Virginia in winter camp around Fredericksburg. Late winter is a time of rest from war as the boy joins a company from Alabama. Spring 1863 brings the reopening of conflict at Chancellorsville. Summer finds Duane crossing the valley at Gettysburg in a charge against the Union.