Ghada Karmi is a doctor of medicine by training and a specialist in the history of medieval Islamic medicine—a background that enabled her to research the period of the novel, using the original historical sources, and create the novel’s main characters, the caliph's physician, and the medicine he practised. Karmi has held a number of academic posts in Middle East history and politics, most recently at the Institute of Arab and Islamic Studies, University of Exeter, UK. She has published six books to date, including two memoirs of life in Palestine.