So far, however, in spite of divisions, no body of Shiahs had ever deviated from the fundamental doctrines of Islamism, but merely claimed that these had been handed down through a different line from that recognized by the Sunnis. The earliest Ismailis, who formed themselves into a party at about the time of the death of Mohammed, son of Ismail (i.e. circ. A.D. 770), still remained believers, declaring only that the true teaching of the Prophet had descended to Mohammed, who was not dead but would return in the fullness of time and that he was the Mahdi whom Moslems must await. But in about A.D. 873 an intriguer of extraordinary subtlety succeeded in capturing the movement, which, hitherto merely schismatic, now became definitely subversive, not only of Islamism, but of all religious belief. This man, Abdullah ibn Maymūn, the son of a learned and free-thinking doctor in Southern Persia, brought up in the doctrines of Gnostic Dualism and profoundly versed in all religions, was in reality, like his father, a pure materialist. By professing adherence to the creed of orthodox Shi-ism, and proclaiming a knowledge of the mystic doctrines which the Ismailis believed to have descended through Ismail to his son Mohammed, Abdullah succeeded in placing himself at the head of the Ismailis. His advocacy of Ismail was thus merely a mask, his real aim being materialism, which he now proceeded to make into a system by founding a sect known as the Batinis with seven degrees of initiation. Dozy has given the following description of this amazing project: To link together into one body the vanquished and the conquerors; to unite in the form of a vast secret society with many degrees of initiation free-thinkers--who regarded religion only as a curb for the people--and bigots of all sects; to make tools of believers in order to give power to sceptics; to induce conquerors to overturn the empires they had founded; to build up a party, numerous, compact, and disciplined, which in due time would give the throne, if not to himself, at least to his descendants, such was Abdullah ibn Maymūn's general aim--an extraordinary conception which he worked out with marvellous tact, incomparable skill, and a profound knowledge of the human heart. The means which he adopted were devised with diabolical cunning....