In a battle of words and beliefs, a young woman must defend her city against zealotry during the Islamic Golden Age.

After his long-time scribe retires, Khadija's father, the city's leading jurist, offers his introverted daughter the opportunity to take on the role of his assistant. In accepting, Khadija is thrust into her community, the medieval hilltop city of Medina'tul-Agham, where she, as a motherless young woman, has spent little time. Led by Imam Fatima and guided by the Circle of Mothers, it is a matriarchy - the only one in the empire.

Though forced to set aside her quiet life among the books and parchments of her family home, Khadija thrives, finding her power and place in the world with the support of her new friends and strong female mentors.

Yet Khadija's idyllic new life is shattered when fanatical forces weaponize Sharia law to threaten the very fabric of the society. Using only the power of her parchment and quill, Khadija must win the support of the people and write fatwas to fight against injustice, or the peace and prosperity of her city will be nothing more than a footnote in the annals of history.