Ron Arlon, a bounty hunter, and his sorceress companion, Abigail Crysteffor, are invited to the Profaned Airship, an airborne bastion of the forbidden arcane arts, where the most dangerous mages are confined to prevent further damage to society. They are given a quest to find the Darkin Magus, a vile illusionist, a prisoner of the airship, who recently vanished without trace. Despite the effort, their mission only gradually goes to somber twists as their search draws closer.