Clandestine missions. Clever, devious, daring. Passionately committed to a cause. During America's most divisive war, both the Union and Confederacy took advantage of brave and courageous women willing to adventurously support their causes. These female spies of the Civil War participated in the world's second-oldest profession-spying-a profession perilous in the extreme. The tales of female spies are filled with suspense, bravery, treachery, and...