Book 2 of The Wayfarers, a series of LitRPG novellas.

Alex McLeod is broke again. A teenager from Earth, Alex discovered a mysterious old game called Wayfarer, which transported him to the fantasy world of Borealis. There, he and the beautiful elven thief Cerissa embarked on a career of crime, stealing the gold that they need to buy new powers and skills under the rules of Wayfarer. But the money's run out, their exploits have caught up with them, and their friend Bell is in mortal danger.

Now Alex and Cerissa must slip Bell out of the city, up the river, and out to freedom on the open sea. But their enemy's power reaches further than they thought, and hanging over everything is the threat of the terrible prison known as Deadwater...