Marksburg Castle is a guild dungeon located west of Prague. The dungeon may be opened by with a [Key of Lunacy], obtainable by a guild master from [Pointry] for 500 guild points. Once the dungeon is opened, members of the guild have up to two hours to complete the dungeon before it closes again. If all monsters within the dungeon are defeated within the time limit, [Crazy Lord's Seal]×10 and 1200 guild points will be awarded to the guild.