The third brother appeared in this scorching space. This place was empty and there was no one. The last wave of patrolling personnel had just left from here.
It was a cylindrical hole that was dug a hundred meters deep. However, the walls were inlaid with bright raw stones, illuminating the entire space. One could vaguely see many patterns twisting behind the stones, as if they were alive.
Below was a circle with a diameter of about a thousand feet. This circle was engraved with very thick array patterns. These patterns were intertwined with each other and continuously spread out from the city wall, connecting the entire cylindrical space together and condensing the majestic temperature inside.