In rural north Georgia two decades after the Civil War, thirteen-year-old Lulu Hurst reaches high into her father's bookshelf and pulls out an obscure book, The Truth of Mesmeric Influence. Deemed gangly and undesirable, Lulu wants more than a lifetime of caring for her disabled baby brother, Leo, with whom she shares a profound and supernatural mental connection. Lulu begins to "captivate" her friends and family, controlling their thoughts and actions for brief moments at a time. After Lulu convinces a cousin she conducts electricity with her touch, her father sees a unique opportunity. He grooms his tall and indelicate daughter into an electrifying new woman: The Magnetic Girl. Lulu travels the Eastern seaboard, captivating enthusiastic crowds by lifting grown men in parlor chairs and throwing them across the stage with her "electrical charge."