Hashishiyya - The ritual assassination of Nizari Ismailis

The book begins with a historical introduction on the Ismailis, the Qarmatians, and the Fatimid Caliphate, especially the Ismailis, from which the Hashashiyya band came
The author studies the circumstances surrounding the emergence of cannabis, its geographical distribution, its organization, its connection to other groups, political, intellectual and religious transformations, and the practice of ritual assassination that raised many questions due to the ambiguity surrounding it.