บท 1111: Three Hidden Problems

Clang!

As the door to the meeting hall was shut, only two people remained in the hall. Then, Happy opened his eyes and quietly tapped his chair. 

Thud, thud. 

His rhythmic tapping seemed to have triggered some sort of mechanism. Suddenly, the sound of springs traveled into their ears. 

One Emperor's motion of rubbing the blade of his sword finally stopped. He cast a surprised glance at the armored walls, which were several inches thick, sliding down with a loud boom over the doors and windows. 

Boom! Boom! Boom! Boom! Boom!

As if the Domino's effect had been activated, armored walls continued to fall down one after another. In an instant, all the doors and walls were sealed shut, and the inside of the meeting hall instantly turned into a metal fortress with a tight defense.