Tragedy (2) 

The ancients burst through the walls, entering the fortress. Their cries of wrath were loud enough to be heard across the entire continent. 

They left a trail of destruction anywhere they went. Their giant bodies wouldn't be stopped by anything in their way. Just the pressure their mana exuded was enough to tear the buildings apart and shake the ground. 

Minor and medium beasts were among them as well. The Ancients seemed to be indifferent about their presence, though. Those beasts weren't as directly destructive as the Ancients were. In regards to body size and proportion, they were lengths behind their leaders. 

The quantity of mana they had together was filling the environment and overwhelming the weak traces of mana that the humans had. It was even pathetic that such weak beings were really aiming to fight them off. If they didn't turn into a bloody mess once the Ancients were able to get them, the other beasts would have a feast with their guts.