Feng Yun and all the elders of the Mu Clan were busy arranging the formation around the Mu Clan's residence. The Mu Clan's residence was big, it needed a great amount of manpower if they wanted to build a high-grade formation in the clan.
Hours went by as time passed, and it was already late at night. Despite the world engulfed by the darkness, no one stopped working.
Feng Yun was flowing in the air, making various hands seals in the void. A vast amount of spirit qi was flowing out from his hands continuously and drawing the formation patterns in the surrounding void.
Feng Yun didn't know how many spirit-gathering pills he has eaten to restore his spirit qi. He was responsible to build the core part of the formation that hundred times harder than the other side parts. And a single mistake could cause the downfall of the entire formation.
