The novel was published in 1914. In this work, Zaidan tells the story of Abasah, the sister of the Caliph Harun al-Rashid, who brought together historical narratives that combined the logic of the historical narrative based on imagination, the construction of characters and the details of the scene, and the logic of historical material based on facts and actual events. On the Nakba and its causes, as well as a description of the councils of the Abbasid Caliphs, their clothes, their processions and the civilization of their state in the era of rational.