With Jessica now in your party, your next destination is Port Prospect, located to the south-east of Alexandria. The journey there will take you through new areas with slightly stronger monsters, so ensure your party is adequately leveled and equipped. Port Prospect is a bustling port town, and your goal here is to find passage across the sea to the continent where Dhoulmagus is rumored to be heading.
Upon arriving in Port Prospect, explore the town. There's an inn, a church, and shops with better equipment than you've seen so far. It's a good idea to upgrade your weapons and armor here if you can afford it. Speak to the various NPCs to gather information about the ferry. You'll learn that the ferry is currently out of commission due to a monster attack. To proceed, you'll need to investigate the cause of the delay and clear the path for the ferry to resume its journey. This will lead you to a nearby cave.