Tower of Darkness Library is a dungeon located northwest of Bucharest. * Dungeon Type: Individual * Entrance Fee or Key: [Dark Library Key], obtainable from [Pointry] for 160 battle points or purchasable from the market * Minimum Level: your Main Character must be level 150 or higher to enter this dungeon * Formation: 6 characters (Main Character + 5 Mercenaries) * Monsters: Scale to Main Character's level * Battle Type: Normal Battle * Time Limit: 40 minutes * Extend Time: For 2 Atlas Ore, you can extend the allotted time by 10 minutes * Reward: Nosferatu's Equipment Box for clearing dungeon (killing all monsters) * Boss: Bewitching Succubus Queen * Cooldown (CD): 20 hours