Precisely a hundred years ago Preller called attention to a curious passage in the Confession of St. Cyprian describing certain Greek mysteries and printed the text adding a few brief notes. This Cyprian was a famous magician who was converted to Christianity, the prototype of Dr. Faust, and is often confused with his namesake, the bishop of Carthage. His legend became very popular, there are Greek, Latin, Syriac, Coptic, and Arabic versions, and it has been much discussed. The Confession, so called because in it Cyprian speaks in his own words, was originally independent and later, but before Eudocia's metaphrasis, was inserted between the first book, the Conversion, and the third book, the Martyrdom, of the Greek version. The Empress Eudocia who married Theodosius II in A.D. 421 put the legend into verse, presumably in her old age; she included the Confession, which also was known to Gregory Nazianzen who in A.D. 379 delivered a sermon on St. Cyprian.4 This is valuable because it determines the time in which the Confession was composed, somewhat before A.D. 379. Thus it is roughly contemporary with the Neoplatonic circle of the Emperor Julian and was written at a time when paganism was still a living reality, a fact which adds to the importance of the passage.