1. Once quest complete, it useless. I think handing him over to captain will give more exp
2. If you do read up the book found in the underground passage, you will know you need 3 talisman, which is east, west and south. They can be located in the tunnels just as their names pointed out
3. If you decide to help the couples in bandit camp, you will need that rum. Go read up your quest log
