The fourth novel in Tariq Ali's Islam Quintet is set in medieval Palermo, a Muslim city rivaling Baghdad and Cordoba in size and splendor. The year is 1153. The Normans are ruling Siqqiliya, but Arab culture and language dominate the island and the court. Sultan Rujari (King Roger) surrounds himself with Muslim intellectuals, several concubines, and an administration presided over by gifted eun...