Born in her father's coffee house in Change Alley, London, Sarah Battle is raised in an atmosphere of coffee, alcohol and intrigue. After witnessing the destruction and chaos of the Gordon Riots, she longs to escape her surroundings for a better life but is trapped in a marriage to James Wintrige, a member of the Corresponding Society but also a government spy. She meets the radical thinker, printer and bookseller Thomas Cranch who offers her an escape...