Hosa is the Hosidius architect in Great Kourend. He is located "at the base of the ruined statue of King Rada I in central Kourend" and is one of the NPC players must talk to in order to begin the Architectural Alliance miniquest. Players who speak to him will discover that he wishes to rebuild the statue of King Rada I in the centre of Great Kourend after it was heavily damaged in a storm. However, he is unable to receive the assistance of the other architects in their respective Houses, and requests that you do so for him as part of the Architectural Alliance miniquest.
Players must speak to him again after gaining 100% Hosidius favour as part of the Architectural Alliance miniquest. He builds the head of the statue.
The architects of the five houses unite and rebuild the statue of King Rada I.