The Agathyrsians are the most luxurious of men and wear gold ornaments for the most part: also they have promiscuous intercourse with their women, in order that they may be brethren to one another and being all nearly related may not feel envy or malice one against another. In their other customs they have come to resemble the Thracians. 105. The Neuroi practise the Scythian customs: and one generation before the expedition of Darius it so befell them that they were forced to quit their land altogether by reason of serpents: for their land produced serpents in vast numbers, and they fell upon them in still larger numbers from the desert country above their borders; until at last being hard pressed they left their own land and settled among the Budinoi. These men it would seem are wizards; for it is said of them by the Scythians and by the Hellenes who are settled in the Scythian land that once in every year each of the Neuroi becomes a wolf for a few days and then returns again to his original form. For my part I do not believe them when they say this, but they say it nevertheless, and swear it moreover. 106.