Red Cloud, the Secret Realm.
At the foot of the mountain stood a magnificent Cave Abode, inside which sat a True Person in a silver Robe of Law. He sat cross-legged, holding a magic sword level before him, while wondrous white, Green, and black Law Script flickered and shifted around him.
Several days had passed since Xu Xuan returned from the Southern Capital. After giving his instructions, he had entered the Secret Realm.
Though his flesh remained within the Secret Realm, his nature and life had long since flown into the Grotto-Heaven. With the Immortal Stele's aid in comprehending the Dao, he cultivated, studied spells, and refined Spirit Treasures without a moment's rest.
He had originally tried setting up the [Heavenly Feather Water-Fire Grand Formation] first, but after a few attempts, he put it aside. The reason was simple: it was far too difficult to arrange alone. Su Wei Mountain was a treasure of Gen Earth and Origin Wood. It could serve as a Spirit Land and possessed the wondrous ability to house formations, so this should not have taken much effort. Yet this true insight Grand Formation was of an exceptionally high order and extraordinarily intricate. Its accompanying explanation described it as [the work of Immortals and Sages, the pinnacle of water and fire]. With Xu Xuan's virtually nonexistent mastery of formations, he was naturally left groping in the dark.
Fortunately, Tiantuo was there.
Though the old monster was no formation master either, he had learned a few tricks during his years roaming the world, and was at least far better than Xu Xuan. Now that he had begun studying anew, he progressed rapidly, so the task of setting up the formation fell entirely to him.
Xu Xuan sat high above the azure clouds within the Grotto-Heaven, overlooking the