Fang Bai waved his hand and cast out the Immortal Stone, quickly setting up an Isolation Formation within the Ancient Hall, and then began refining the Creation Pill for the Yihu.
Qingzhu Fairy and the other immortals knew that alchemy required a quiet environment, so they did not disturb Fang Bai, scattering to guard around the ruins of the Ancient Hall, protecting him from any suddenly intruding immortals or Immortal Beasts.
In their understanding, no matter how strong the alchemist was, it was impossible to refine a furnace of Immortal Pills without three to five days.
Although three to five days might pass in a flash, in this Flame Dragon Immortal Realm, they could encounter immortal disturbances or Immortal Beast attacks at any time, so they dared not be careless.
