Tristan is a mage novice in charge of the farm to the north of Harbour town. He advises you to be taken to the monastery for training in magic and fighting staff. You can talk to him about showing you the way to Harbour town but he will ask for your help at the farm in return. You can trade with him, and he's also one of the two people you can ask to shelter Sara before chapter 2.
Farm on the road between the swamp and Harbour town.