This key source for pre-Fatimid Ismaili history includes a fully annotated translation and Arabic critical edition of one of the earliest surviving Ismaili Shi'i writings, Kitaring;b al-'Aring;lim wa'l-ghularing;m by the Yemeni author Ja'far Ibn Manszlig;uacute;r al-Yaman. The book is unique because it provides the most elaborate example available of the narrated dramatic dialogues form in Arabic literature. It also vividly illustrates the processes by which early esoteric Shi'i ideas and institutions eventually contributed to the evolution of more familiar forms of Sufism in the Islamic West.