Mohamed El-Gizawi's 'The Assassins: Kingdom of Killers' plunges readers into the enigmatic and feared world of the Hashashin, a clandestine Ismaili Shia sect that terrorized the Middle East during the medieval period. This compelling book uncovers the origins, rise, and eventual demise of this mysterious order, famed for its strategic assassinations and formidable mountain strongholds like Alamut. El-Gizawi meticulously explores their ideology, their elusive leadership under figures like Hassan-i Sabbah, and their profound impact on political landscapes. It’s a captivating journey into a secretive society that skillfully wielded terror as a tool of power, offering an insightful look at one of history's most notorious groups.