International bestseller Steve Berry returns with another brilliant Cotton Malone thriller involving a mystery about Abraham Lincoln and a political issue that's as explosive as it is timely - not only in Malone's world, but in ours. September 1861: All is not as it seems. With these cryptic words, a shocking secret passed down from president to president comes to rest in the hands of Abraham Lincoln. And as the first bloody clashes of the Civil War unfold, Lincoln alone must decide how best to use this volatile knowledge: save thousands of American lives, or keep the young nation from being torn apart forever?