A mortal cultivating immortality can nurture spirit beasts.

Nangong Wan frowned as she looked at the Golden Rain Sword. "This sword was forged using a special method; even I couldn't refine this magical artifact. By the way, how did you obtain this magical artifact?"

Lin He and Xin Ruyin exchanged a glance and then briefly recounted what had happened at the Tianxing Sect market. Nangong Wan pondered for a moment and said, "I see. It seems that the Xu family patriarch also had a backup plan."

"What does this mean?"

"If I'm not mistaken, if you go to Yuanwu Kingdom again, as long as you are within a certain distance of this Xu family patriarch, he will be able to sense you through his connection with this sword."

Lin He understood immediately upon hearing this, and instantly grasped many things. "No wonder he dared to send a clone with a magic weapon. It turns out he had a backup plan. Luckily, you were here, otherwise I would still be in the dark and would have been tricked without even knowing it."

Nangong Wan looked at him with some concern, "According to your description, the other party should be at the early stage of Core Formation. Otherwise, even if it is just an avatar, it would be beyond your ability to handle. But in any case, it is a Core Formation cultivator. You must be careful and never go to Yuanwu Kingdom."

Lin He frowned upon hearing this. It would be troublesome if he couldn't go to Yuanwu Kingdom, since there was still an opportunity there.

However, he did not explain this to Nangong Wan. Instead, he patted her shoulder and said, "You don't need to worry too much about me. You should be more careful yourself."

As they spoke, Lin He handed her the simplified version of the Inverted Five Elements Formation. "Ruyin's improved version of the Inverted Five Elements Formation will take another two years to develop. Until then, use this one for now."

"But if I take it, then you..."

This formation would certainly be useful to Nangong Wan, but she hesitated. Seeing this, Lin He forcefully stuffed it into her hand, saying, "Ruyin gave me two other formations, and I have other reliance on, so just accept them."

With Nangong Wan's mid-stage Core Formation cultivation, coupled with the assistance of the Reversed Five Elements Formation, she had even more power to protect herself.

After all, not all Core Formation stage cultivators are as powerful as Han Li, who can kill someone instantly with just a few tricks.

Most Core Formation stage cultivators can easily determine a winner in a duel, but killing their opponent is extremely difficult. After all, if the opponent is determined to escape, it is very difficult to kill them unless they are trapped in an array or restriction and cannot escape.

Looking across the entire Chaotic Star Sea, there are only a few Core Formation stage cultivators as powerful as Han Li, such as Xuan Gu and Wen Tianren. As long as she doesn't encounter these people or provoke those Nascent Soul stage monsters, Nangong Wan's cultivation level is sufficient to protect herself. This is why Lin He felt at ease letting her search for Biling Island.

Moreover, Biling Island is located in a very remote and sparsely populated area. In the original story, the spirit mines on Biling Island were not discovered until several hundred years later. What Nangong Wan should really be worried about is the monsters that roam there.

Upon hearing this, Nangong Wan felt a warmth in her heart. She solemnly put away the formation and couldn't help but lean against Lin He's chest. "Lin He, once I leave, it will be five years before we meet again."

"Yes, five years! But for us cultivators, five years isn't too long."

Nangong Wan nodded silently, leaning against Lin He's chest for a while before realizing that Xin Ruyin had already turned her back to them. Her face flushed, and then, as if remembering something, she couldn't help but ask...

"By the way, why did you make a promise to meet me here five years from now?"

Five years from now, it will be about time for the demonic invasion. Lin He could only say, "Because I did a divination, and a major event will happen in Yue Kingdom in five years."

Seeing his mysterious and unwilling-to-say-more attitude, Nangong Wan didn't press him for details. Instead, she pointed to Xin Ruyin beside her and said, "You must have something to say to Ruyin. I'll wait over there for a while."

With Nangong Wan's intelligence, how could she not notice Xin Ruyin's little scheme? But she didn't say anything more.

Xin Ruyin was a little surprised to see her master suddenly walk to the side, but when she saw Lin He walking over, she couldn't help but feel sad when she thought about the five-year separation.

"Ruyin, while I'm away, you must listen to your master's words carefully."

Xin Ruyin nodded, then, as if remembering something, took out an ancient book and handed it to Lin He. "Young Master, this ancient book contains a lot of information about spirit beast formations. Since you are very interested in cultivating spirit beasts, you can take this book."

Xin Ruyin had seen the level-four demonic beast, the Jade Mantis, so she naturally knew about it. Lin He didn't stand on ceremony; he put away the ancient book and then recounted the Three Talents Formation he had previously witnessed. Xin Ruyin was very interested to hear about such a formation, and Lin He, of course, didn't hold back, telling her everything he knew.

"Ruyin, if you had the time, could you develop a similar formation?"

"Above the Three Powers are the Four Symbols, and above the Four Symbols are the Six Harmonies and the Eight Trigrams. If I have enough time, I am confident that I can develop them. However, I will have to wait until I reach the Foundation Establishment stage, because the higher one's cultivation level, the deeper one's understanding of formations will be."

After speaking, Xin Ruyin looked at Lin He with some anticipation, "Young Master..."

"This is for you!" Lin He took out a pill and handed it to her. "This is a Youth Preservation Pill, which will keep your appearance youthful forever."

Xin Ruyin was thrilled upon hearing this. No female cultivator could resist the temptation of the Youth Preservation Pill. She felt that this item was too precious, but Lin He just gave it to her so casually.

Thinking of this, Xin Ruyin's face turned red.

"Young master, may I... hug you?"

Lin He glanced subconsciously at Nangong Wan not far away, and seeing that she had her back to him, he took the opportunity to hug her.

Xin Ruyin said with a satisfied expression, "My life was saved by you, young master. I have no other desires. Please take care, young master!"

Lin He patted Xin Ruyin on the shoulder, when Nangong Wan suddenly coughed and said, "Ruyin, we should set off!"

Lin He and Nangong Wan exchanged a glance, their unspoken words unspoken, and then Nangong Wan left with Xin Ruyin.

Watching the two leave, Lin He felt a sense of emptiness in his heart, but he quickly calmed himself down and continued to carry out his previous plan in an orderly manner.

Half a month later, Lin He went to Ma Shangfeng's weapon-refining shop again and obtained several top-grade magic weapons, namely the Blood Spirit Armor, the Blood Spirit Shield, five Blood Spirit Flying Knives, and the Blood Spirit Sky Net.

During this period, Lin He purchased some pill formulas, including not only those for the Foundation Establishment stage but also many for the Core Formation stage. He also sold all the magical artifacts he had obtained from the Black Fiend Sect disciples he had killed, earning a considerable amount of spirit stones. Combined with the large sum of spirit stones he received from the Myriad Sounds Sect, this was enough to cover his expenses for four or five years.

"If Wan'er can find Biling Island within these five years, I won't have to worry about spirit stones anymore."

Seeing that the matter was settled, Lin He used his Wind Control Technique to leave Kui Xing City and then piloted the Divine Wind Boat towards Xiao Huan Island.