This work presents the key to the study of prophecy. Sepharial lays down the key to biblical prophecy by which he has made some of the most astounding of his predictions. This is a work of great importance to the student of astrology and to the interpreter of scriptural prophecy. Contents: time and its measure; setting the world horoscope; Hebrew Kabala and Egyptian Tarot; interpreting the world horoscope; from past to future.