When her native state seceded in April 1861, Van Lew’s convictions compelled her to defy the new Confederate regime. Pledging her loyalty to the Lincoln White House, her courage would never waver, even as her wartime actions threatened not only her reputation, but also her life. Van Lew’s skills in gathering military intelligence were unparalleled. She helped to construct the Richmond Underground and orchestrated escapes from the infamous Confederate Libby Prison under the guise of humanitarian aid. Her spy ring’s reach was vast, from clerks in the Confederate War and Navy Departments to the very home of Confederate President Jefferson Davis. Although Van Lew was inducted posthumously into the Military Intelligence Hall of Fame, the astonishing scope of her achievements has never been widely known. In Chiaverini’s riveting tale of high-stakes espionage, a great heroine of the Civil War finally gets her due.