内容简介：
Hidden deep within the annals of American history lies a secret so devastating, it could put an end to the "United" States forever. A letter, written by President Abraham Lincoln himself, concedes the Civil War and grants autonomy to the Confederate States of America. Michelle Hooper and her son Aiden pack up to go away on a weekend of historical entertainment in the little town of Gettysburg and find themselves instead the guardians of a secret document that threatens the very future of the country they hold so dear.