It was quite easy to find the Immortal Treasures Hall and Immortal Essence Hall in the Huang sword domain.

Wu Yu left the Heaven's Equal Cave Abode to trade for materials to refine immortal medicines and make spirit designs. After that, he went to the Dao Arts Hall to obtain manuals on refining immortal medicines and making spirit designs as well. He now had a good grasp on the basic know-how of immortal medicines and spirit designs. When it came to spirit designs, however, there was a significant amount that could not be learned without the help of Ghostly Wings of the Black Mountain, so he put that aside for now. 

The new immortal medicine books that he obtained detailed over 100 ways of refining immortal medicines. This would keep him busy for quite some time.

As for spirit designs, he also found tons of new material. This included information on both defensive and offensive spirit designs. When it came to spirit designs and talisman papers, he had achieved considerable expertise. The knowledge was enough for him to take his skills to an even more advanced level.

He even swapped out his Three-Legged Cauldron for a higher grade one. With all these exchanges, Wu Yu's 10,000 Golden Essence Pills were used up in a flash. Wu Yu no longer had enough Golden Essence Pills to learn a sword technique that was stronger than the...