It's located near Istanbul, and is level 163+ only.
You can get new quests from [Empress Consort Isabella] in the Byzantium Castle.
Isabella was the Queen of Constantinus XI. She is trying to figure out the forbidden Ancient Power which had destroyed the Byzantine.
Lv.163 or higher level characters are able to get the quests.
You can get new quests through [General Varda] in the Sanctum of Silence.
General Varda's quests can only be obtained after completing all of Empress Consort Isabella’s quests.
General Varda is still in the Byzantine Castle. He has spent his entire life protecting the Byzantine Castle. Now he is preparing for his last battle to protect the Castle from Evil spirits.
This quest will be reset every Monday, Wednesday and Friday.
Red Riding Hood: Transforms the target into a cowardly wolf, disabling it. The effect ends if the target is attacked.
Musicians of Bremen: Attacks the enemy with a sound wave. If the caster makes a normal attack on effected enemies, the sound wave explodes for extra damage.
Mother Hulda: Mother Hulda heals allies and removes their debuffs, or strips enemies of their buffs.