Su Yu muttered lightly to himself and suddenly came to a realisation as the expression on his face changed: “He’s calling for help, crap!”
His words had just been said when several shrill noises could be heard that seemed like ancient devil beasts. Shortly after, the door of the class was continually knocked on and there were loud sounds of “Boom, Boom!”.
The green monsters seemed to have endless strength as the door was being pummeled and continued to shudder, the people within the class were all terrified, if the monsters rushed in, everyone would perish here.