 It narrates the exploits of Aaron, who is able to lock up an evil spirit in a chest by means of the Shem (ineffable name of God); how his pupil Shephatiah is able miraculously to cover a great distance in a very short time so as to avoid profaning the Sabbath day; how Shephatiah is able to save the life of a child that two female demons had determined to put to death; how Hananiel is able to bring his cousin to life again; how heaven directly helps the same Hananiel; and how the moon remains obscured for a whole night in order to cover up an error made in an astronomical calculation.The tale is told of the "Sefer ha-Merkabah," a wonderful book from which Shephatiah draws his knowledge of heaven's mysteries