Namo:
I may have exaggerated a bit, but what you have to do is very simple. Dispose of the dragons and undead in the east of Dragon Valley to get an idea of what's going on.
We can get an idea of the situation by slaying 200 Prey Drakes, Beast Drakes, Dust Drakes, Vampiric Drakes, Bloody Grave Warriors, Dark Grave Warriors, Drak Grave Wizards, and Dark Grave Humans Knights.