From one of the world’s most celebrated and bestselling novelists comes an epic adventure in the spirit and tradition of Monsoon and Blue Horizon. It is 1884, and in the Sudan, decades of brutal misgovernment by the ruling Egyptian Khedive in Cairo precipitates a bloody rebellion and Holy War. The charismatic new religious leader, the Mahdi or 'Expected One', has gathered his forces of Arab warlords in preparation for a siege on the city of Khartoum. The British are forced to intervene to protect their national interests and to attempt to rescue the hundreds of British subjects.