Auru

Auru is one of the members of Telmas group. You first meet up with him in southwestern Lake Hylia where there is a tower, climb it and meet up with him. He will tell you that there have been weird things going on in the desert and that is also the location of Arbiter's Grounds which used to be a prison for the truely evil sort. He also says there is no way of getting in except by Fyers cannon, he'll give you his memo telling Fyer to send you to the desert for free, this reason is because coinsidently, Auru saved Fyers life. Afterwards he can meet him anytime in Telma's Bar.