کتاب The Fatimids and Their Successors in Yaman The Uyun alakhbar is the most complete text by an Ismaili author on the history of the Ismaili community from its origins up to Idris Imad alDins own time in the 15th century The seventh volume edited here for the first time together with a summary English translation deals in particular with the period of the three Fatimid caliphs alMustansir alMustali and alAmir in addition to the Tayyibi Ismaili community in Yemen