Leprechaun - Once known as fairies. Some people complain about its use in the series, however a leprechaun is actually described as a type of mischievous fairy, and its female form isn't popular in western fantasy, which makes the complaints unfounded. (Theories/Spoilers) Supposedly, leprechauns are the result of using the shattered parts of Elq's soul in the process of reincarnation of the fairies. Also, they seem to be loop reincarnating as can be seem by Itheas situation. Before that, it is said in the novels that fairies were the size of a hand.