J. Barstow Budworth

Anna Q. Nilsson is the title character, Agnes Lane, a daring spy for the South during the Civil War. She delivers an important message regarding an attack on a Yankee fort, then infiltrates the fort and turns herself in, only to change into a Union soldier's clothes and escape with more confidential information. The Confederate soldiers love her, and treat her with respect, despite her un-ladylike profession.