Choose Your Own Adventure SPIES: Mary Bowser by Kyandreia Jones puts YOU in the shoes of real-life Civil War heroine, Mary Bowser. 9-12 year old readers will join an organized ring of women who spy in plain sight to help the Union during the Civil War. YOU are a brave and fearless woman. You can ride standing on the back of a horse while shooting a bow and arrow. You never go anywhere without your sword. But your best skill of all is your ability to disguise yourself. Will YOU infiltrate the Confederate White House, posing as a servant, and gather information for the Union?