Empress Moyry dispatches a handful of her most expendable agents to investigate the castles in the Carollan Bend for the sake of resolving conflicts or making sure no monsters have taken them over. As the Castle Inspectors journey to more and more strongholds, they find two recurring problems: magic-users are disappearing, and there are rumors that the Dragon Rider, the land's legendary villain, might return. They question if these two problems relate and if they should leave their duty behind in order to save the world.
2 parts