Grand Magister Kreia:
What is it? It's dangerous here!
Demon Balok created by evil wizard Beleth is trying take over these lands by corrupting them with the dark magic.
The Ivory tower Wizards have created special Magic Circles, that doesn't let Balok escape. Besides, the magic prevents the travelers from entering the lands of the demon.
Due to the Magic Circles the balok Battleground can be accessed only during a certain period of time. Keep in mind that it will be hand to defeat this monster. If you have any doubts, you do better go anyway.
Ask about Balok Quest