A mortal cultivating immortality can nurture spirit beasts.

"What treasure?"

Lin He's gains from the battle at Yanjiabao were not great. Apart from the two top-grade magic weapons, the black dagger and the Bewitching Bell, which he obtained from Tian Buque, as well as the bronze-armored corpse in the late Foundation Establishment stage, he only received some spirit stones, talismans, and materials.

He was very interested in Wang Chan's storage bag, but under those circumstances, he certainly couldn't choose to take it, otherwise the Yan family would have laughed themselves to death.

Nangong Wan suddenly smiled mysteriously and asked, "Husband, do you know who the biggest winner was in the battle of Yan Family Fortress?"

"It couldn't possibly be the Ghost Spirit Sect, could it be... you?"

"You got it right!" Nangong Wan smiled. "Speaking of which, I really have to thank my husband for the information he provided, otherwise I wouldn't have gained so much."

Nangong Wan recounted what happened afterward. It turned out that many things had occurred after Wenmin brought Nangong Wan back to the Yanyue Sect.

"Upon returning to the valley, Yan Ruyan actually took the initiative to ask me to become her disciple, which surprised me somewhat."

Lin He was not surprised. Instead, he explained, "The Yan family has completely offended the Ghost Spirit Sect this time. In order to further strengthen the bond with the Hidden Moon Sect, it would be a good idea to have you as their master."

Nangong Wan nodded and said, "That's right, but I'm not at a loss either. I'm already very satisfied to have a disciple with a Heavenly Spiritual Root. Besides..."

Nangong Wan suddenly took out two corpses from her storage bag. They were Wang Chan's two bodyguards—the Li brothers.

At this moment, it was clear that the consciousness of these two people had been erased and their souls extracted, and most of them had already been refined. It seemed that they were only one step away from becoming refined corpses.

"The refining of these pill corpses requires the assistance of a Nascent Soul cultivator. After returning to the valley, the Grand Elder helped me refine these two corpses. Now, only the final step remains before the pill corpses are complete!"

"A corpse?"

Nangong Wan took out a jade slip and handed it to Lin He, who immediately understood after probing it with his divine sense.

This so-called Dan Corpse is also a Refined Corpse, except that it uses the corpse of a Core Formation stage cultivator as material. However, unlike Lin He's Fiend Core clone, the Dan Corpse cannot control magic weapons or cast spells, but its physical body has been refined using special methods and has become extremely powerful.

If Nangong Wanruo successfully refines these two pill corpses, it will be equivalent to having two more early-stage Core Formation cultivators as her helpers.

"I understand. The final step in refining this corpse pill requires a large amount of Yin Souls, which is why you came here."

Nangong Wan nodded and said, "You told me that your Fiend Core clone has a magic treasure called the Soul Gathering Banner, which contains countless Yin Souls, and can be used to refine them."

Thinking of Nangong Wan's flowing white robes, like a fairy descended to earth, it was indeed not suitable for her to do this task. So Lin He volunteered to take on the task, since Nangong Wan's improved strength would also be of great benefit to him.

In particular, the Corpse Fiend Array mentioned at the end of the jade slip, which requires the collection of eighteen Core Formation Corpses to form the array and unleash power equivalent to that of an early Nascent Soul cultivator, greatly piqued Lin He's interest.

"By the way, where did you get this jade slip?"

"Well...can you guess?"

"Could it be... Wang Chan?"

Nangong Wan sighed and said, "You're really smart, you guessed it right away. How boring."

Nangong Wan took out another jade slip and handed it to Lin He. "The Grand Elder is very kind to me, even to the point that Uncle Zhou has a lot of complaints. She said that I have made a great contribution this time and can choose any treasures from Wang Chan's storage bag. I looked through them all and finally chose a few rare materials, as well as these two jade slips."

One jade slip contained the refining techniques for the Pill Corpse and the Corpse Fiend Array. Lin He picked up another one to examine it, and immediately became very interested, immersing himself in it for quite some time before coming back to his senses.

"Even I am somewhat afraid of the power of this Soul-Burning Pearl."

Lin He felt a surge of joy; the Soul-Burning Pearl was perfect for him.

According to the jade slip, refining the Soul-Burning Pearl requires various rare materials, as well as the sacrifice of one's own soul.

This was something researched by a Core Formation cultivator from the Ghost Spirit Sect. Seeing no hope of reaching the Nascent Soul stage, this cultivator started tinkering with other things, and after a hundred years, he actually succeeded.

That is to sacrifice the souls of three early-stage Core Formation cultivators to create a Soul-Burning Pearl. This so-called Level 6 Soul-Burning Pearl can even impact the soul of a mid-stage Core Formation cultivator, so its power is beyond question.

Although this cultivator's research was successful, it was completely useless, since three early-stage Core Formation cultivators could withstand a mid-stage Core Formation cultivator even without sacrifice.

Core Formation cultivators aren't like cabbages; how could they be offered as sacrifices? And who would willingly be sacrificed?

This cultivator spent a hundred years researching but produced something completely impractical, becoming a laughingstock and dying in despair. For some reason, this thing ended up in Wang Chan's hands.

Moreover, at the end of the jade slip, it was mentioned that demon souls could be used to replace cultivators' spirit souls, which aroused Lin He's interest even more.

Lin He was very frustrated. He clearly possessed extraordinary power but was unable to display it. He could have solved many problems with his army of spirit beasts, but he was held back for fear of exposing his secrets.

Putting aside everything else, if he had released twelve level-four golden pythons at once during the last battle at Yanjiabao, those Ghost Spirit Sect cultivators would have had no choice but to be slaughtered.

But the outcome will probably not be much better than that of the Li brothers. After all, Wen Min and Linghu Laozu are watching from the sidelines. Once he exposes his secret, he will definitely be the first one to have his soul searched.

But now that we have the Soul Burning Bead, which has different grades, there are two levels: level five and level six. If we use the essence of a level five demon beast or the essence of a cultivator in the early stage of Core Formation to refine a level six Soul Burning Bead, it can affect the soul of a cultivator in the middle stage of Core Formation.

Each Soul-Burning Pearl requires the sacrifice of three souls of the same level, but there is also a basic requirement: the souls of at least a level four demon beast or a late-stage Foundation Establishment cultivator must be sacrificed.

The essence of three level-four demonic beasts can be refined into a level-five Soul-Burning Pearl, which can affect the soul of a cultivator in the early stage of Core Formation. And this is only one. If there are more, such as seven or eight, even a cultivator in the mid-stage of Core Formation will suffer a great loss if caught off guard.

Lin He had a lot of demon beast spirits and materials that he didn't know what to do with. After all, he wasn't short of spirit stones, and these materials couldn't just sit idle forever. Now he finally found a use for these demon beast spirits.

"What's wrong with you?" Nangong Wan asked worriedly when she saw that Lin He hadn't spoken.

"It's nothing, it's just that this thing really suits me."

"Since it suits you, then accept it."

Lin He accepted it without hesitation, then said, "Give me the essence of these two people to refine into Soul-Burning Pearls, and I'll help you refine the Pill Corpse. Then, together we'll pull off a big heist in Golden Drum Plain!"