The two Palace Masters of Jinghu Palace would certainly not explore Yi Ming's specific methods. This is a secret that can kill the Jindan Ancestor. They would not be so ignorant.

And it was obvious that the two palace masters' attitude towards Yi Ming had gradually changed from a promising junior to an admirable fellow cultivator.

With an earth-level ferocious beast by his side and many secret techniques at his disposal, even if his own cultivation is not enough, it is enough for him to communicate with the Jindan Ancestor on an equal footing.

After putting away the Golden Que Sword and the Silver Lan Robe, they finally got down to the main topic of today.

"I heard that you harvested a lot of earth-level spiritual plants in the sea." The second palace master said, "Can you exchange some for Jinghu Palace? I will take you to the secret library in the palace later, and you can see if there is anything you need."

Yi Ming nodded, "Of course no problem, I'm only in the Condensation Stage now, and I can't use earth-level spiritual plants. It would be best if I could exchange for some earth-level materials. I want to refine a set of lower-grade earth-level formation flags."

The two palace masters were speechless. You can't use earth-level spiritual plants, but you can use earth-level refining materials?

His eyes lit up, and Yi Ming immediately saw the purple spiritual plant that he had given to Bei Xueqing placed in a corner of the secret library.

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"This is the Xuansha Spirit Stone, produced from the depths of the Xuansha Mountains in the Central Region. It is of the lower earth grade and carries the Xuantian evil spirit. It can be used to refine offensive weapons, but it is incompatible with the Jinghu Palace's martial arts, so it has been placed here." The Second Palace Master introduced.

"As long as you have enough spiritual plants, you can pick whatever you want in the secret storehouse!" The Second Palace Master waved her hand and said generously. Of course she could be generous. They traded fairly with Yi Ming, and then they could double their profits with the spiritual plants they got in exchange. Only a fool would not be generous.

"Then I won't be polite!"

In the case of insufficient capacity, exchanging raw materials for resources is the only option.

The Grand Palace Master looked at Yi Ming deeply, pinched the seal in his hand, and opened the last isolation formation leading to the secret vault of Jinghu Palace.

The Second Palace Master saw Yi Ming pick up a piece of metal the size of a football and introduced it with a smile.

"By the way, I haven't asked yet, what type of elixir do the two palace masters want to refine with the earth-level spiritual plants? For cultivation, healing, longevity or breakthrough of realm?" Yi Ming asked as he walked.

"Thank you, Grand Palace Master!" Yi Ming bowed and then followed the Grand Palace Master in.

Yi Ming touched a black stone that was as big as a millstone.

Because of the relationship between Zhao Yu and Yi Ming, the two palace masters did not avoid her. The four of them went to a place in the back mountain of Jinghu Palace and entered the first secret library of Jinghu Palace.

Yi Ming blinked, "More than a dozen, all kinds of them."

However, seeing what the two palace masters of Jinghu Palace did today, Yi Ming has secretly raised the priority of the "Dongyuan Secret Pill Classic" by one level. If he can upgrade it to the highest level in the game, maybe he can also refine earth-level pills? In the cultivation world, the most powerful alchemists and weapon refiners are known to be able to refine pills of higher levels. There is no reason why a time traveler with a plug-in can't do it? But this is a matter for the future. Yi Ming's top priority is to refine the flag of the "Dutian Gang Formation", which is something he can see and touch at the moment.

Yi Ming saw a jade box placed beside him. After opening it casually, he saw a fist-sized colorful pearl emitting rays of light, illuminating the area of ​​several feet around it.

In fact, he also has an earth-level alchemy scripture "Dongyuan Secret Alchemy Classic", but on the one hand, he has not yet mastered this scripture, nor is he sure of refining pills of higher levels, so it is naturally impossible for him to recommend himself to Jinghu Palace and say that he can also refine earth-level pills.

The Second Palace Master nodded and said, "There are several earth-level refining materials in the palace's secret vault. Take a look first to see if they are suitable. If not, I will take you to the Central Region again. We can always exchange them back."

“There aren’t many things in there, but they are all earth-level resources or extremely rare treasures from heaven and earth. You can take a look first.” The Grand Palace Master said.

Yi Ming shook his head. He had no use for this material. The best material for the Du Tiangang Formation Flag was thunder-attributed material, and the next best was pure metal. This material was both evil and stone-like, and did not meet his needs.

"Huh?"

…

Yi Ming replied, and his eyes began to wander around the secret library.

"This is Jiuhe Gold, a water-attributed earth-level metal material. It's actually quite suitable for the disciples of Jinghu Palace, but my elder sister and I both have magical instruments, so I'll put it in the secret vault for now."

"It's not a big problem actually. My sister knows an alchemist in the Central Region. We just need to take the spiritual plant there and ask him to refine it into an elixir. Apart from the part we pay, the remaining value of the elixir is still more than the spiritual plant itself." The Second Palace Master said with a smile, "We are doing business here."

"Oh, it's a pity I can't use it." Yi Ming nodded and put down the Nine Rivers Gold.

He could hear that the Second Palace Master was quite fond of the Nine Rivers Gold. After all, if it was a magical weapon that suited him, the combat power that could be improved would be significant.

"Amazing!" The Second Palace Master's face turned pale. "If it weren't for the thousands of years of savings in the palace, I wouldn't be able to compare with you in wealth."

"Okay!" Yi Ming said it was a deal.

"Hehe..." Yi Ming laughed dryly twice and suddenly didn't dare to speak.

In fact, if this piece of Nine Rivers Gold could be refined into a flying sword, it would be a good match with the "Mighty Sky and Vast Sea Sword Art", but Yi Ming didn't care too much about it. On the one hand, the Taibai Flying Immortal Sword was also very powerful and was not inferior to ordinary earth-level magic weapons. On the other hand, Yi Ming didn't specialize in water-based skills, so there was no need to take away someone else's favorite.

"This is……"

"This is a Five Cloud Sea Shell Pearl, produced from the deep sea, of lower earth grade, obtained by a patriarch of the palace in the sea area a while ago."

The Second Palace Master introduced, "Why, are you interested? But this pearl has the origin mark of the fierce shellfish beast inside, which is extremely difficult to remove and refine. We have found three earth-level refining masters, but none of them are sure that they can refine it into a low-grade earth-level magic weapon, so it has been kept until now."

The Second Palace Master thought for a moment and continued, "However, even if this pearl is not refined into a magical weapon, it can exert the defensive power of the top grade of Xuan level just by simply refining it, which is just right for you."

"Indeed." Yi Ming nodded. His Rainbow Pearl had just been damaged, and now he encountered a more powerful one. Isn't this God's will? And sooner or later Yi Ming will obtain the earth-level refining technique in the game. He is not in a hurry. He will use it like this first. When he advances to the Golden Core stage, he can refine this pearl into a magic weapon, right? (End of this chapter)