Having a made a deal with Anavel Bloodbane, otherwise known as Project X-3.19, the group plunges into the dungeon beneath the Grand Duke Lion Cathedral, all the while accompanied by the very being that they were tasked to investigate in the city. Will the challenges and trials be made easier with a fourth person in the group? Can such a thing even be trusted? What awaits the team and their unlikely ally in the bowels of the catacombs?