Zhou Tian's strength was apparent, based on the situation at the time. If Zhou Tian hadn't initiated an attack, the goblin clan could have maintained their defenses. However, once Zhou Tian struck, even their full efforts may not have been enough to stop him. When they thought about how the one they merely intended to use had grown strong enough to annex their clan, a bitter taste filled the goblins' hearts.
They must have felt like they had brought a wolf into their house! Originally, they planned to use Zhou Tian, but they ended up being outsmarted by him. Now, because of a major defeat, they realized they had completely lost the strength to stand against Zhou Tian.
