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1.Ask Veos if he has any quests for you and he will tell you of his client from the mainland. The hierarchy and general social organization of Kourend, as well as some other knowledge about the houses, interest the client. After you agree to help him, you will receive an enchanted scroll. It'll tell you to use a quill to write on it. This is where your feather comes in. Use the feather on the scroll to receive an Enchanted quill.
Put a mention in here that says Veos can be found at the Port Sarim north docks if you have never visited Kourend before. Once you have talked to him, he will allow you to travel to Kourend.
2. Now you'll have to speak to the general store owners around Kourend, making sure that you have the enchanted quill in your inventory. First head to the general store in the Piscarilius House (number 1 in the map below) and speak with Leenz for some information about Piscarilius. Go through every chat option until the quill automatically writes some notes down.
4. After you finish with Regath, take the West path to the Lovakenj House and speak with Munty (number 3 in the map above). Ask Munty about the Lovakenj House and go through all chat options. Continue to go West until you reach the path among the rocks that leads South. Follow it and you'll reach the Shayzien House, speak with Jennifer (number 4.) Ask her the same questions you have asked everyone else until your quill takes notes.
5. Lastly, head East and go to the general store in Hosidius and speak with Horace (number 5). Ask Horace the same questions for the last time; You should get a message saying that you have all the information you need, and to return to Veos.
9. When you return to Veos (You cannot finish the quest if you talk to him in Port Sarim), he won't know what you are talking about or even remember sending you out for help for his client. Then, the client will take over his body and speak with you. If you try using the Ring of Charos, the client will tell you that his name is Xeric. He will reward you.