Han Li just nodded indifferently to what Hu Yan said, without much surprise.

Although this place is the Immortal World, with various immortal domains and countless high-level True Immortals, it is not much different from realms like the Mortal World and the Spirit World. Killings and struggles between cultivators never cease. Every day, countless sects are destroyed, and the snatching of cultivation methods is nothing new.

His mind raced, but he did not respond, knowing that since Hu Yan had brought this up, it was obviously not just to explain the origin of the Mantra Wheel Sutra; there must be more to come.

As expected, after a slight pause, Hu Yan continued:

"Of course, there's nothing good about this. What I was thinking is that this Mantra Wheel Sutra only has three levels. The complete Mantra Wheel Sutra actually has nine levels."

"What!" Han Li's expression changed, and excitement appeared in his eyes.

Over the years, as his cultivation had continued to improve, especially after reaching the peak of the late True Immortal stage, he had indeed begun to consider cultivation methods for after he advanced to the Golden Immortal stage. He had also inquired about other time-related cultivation methods through various channels, but to no avail. Who would have thought that the Mantra Wheel Sutra would actually have subsequent levels?

For him, this was undoubtedly a great thing.

"If that's the case, why did Senior Baili only release the first three levels of the cultivation method within the Candle Dragon Dao, and even declare to the outside world that the Mantra Wheel Sutra only had three levels?" Han Li took a light breath, calmed his mind, and then asked.

"In the entire Immortal World, cultivation methods related to the Law of Time are extremely rare. Those that can be cultivated to the Golden Immortal realm are already considered secrets. The Mantra Wheel Sutra with only three levels is already regarded as one of the Candle Dragon Dao's sect-protecting cultivation methods. If people knew that this cultivation method actually had nine levels, I'm afraid it would attract a lot of trouble," Hu Yan sighed and said slowly.

"Indeed," Han Li nodded in agreement. He agreed with this point.

"Actually, Baili Daozhu didn't obtain the complete cultivation method back then. He only obtained the first six levels. Now, this cultivation method is in my hands," Hu Yan added.

"Senior, please speak plainly if you have something to say," Han Li said, his expression calm, but his heart stirred.

"As long as you are willing to enter the Netherfrost Immortal Mansion with us and help me obtain something, I can teach you the last three levels of the cultivation method after success," Hu Yan said with a smile.

Han Li touched his chin, his face full of contemplation.

Hu Yan stood with his hands behind his back, looking very calm, as if he was not worried that Han Li would reject him this time.

"If everything Senior Hu Yan said is true, I might consider your request. However, I want to confirm whether you really have the subsequent levels of the Mantra Wheel Sutra," Han Li raised his head after a long time and said.

Hu Yan was stunned for a moment, then nodded, took out a jade slip, waved his hand and cast a spell, tapping the jade slip a few times, and then threw the jade slip towards Han Li.

"That's right, it's the subsequent cultivation method of the Mantra Wheel Sutra," Han Li caught the jade slip, his divine sense probed into it, and after a while, he nodded.

There was not much content in the jade slip, only a few lines of cultivation formulas, but since he had already cultivated the Mantra Wheel Sutra to the third level, he could naturally recognize whether this was the fourth level that followed.

"Hehe, if that's the case, then we'll reach an agreement..." Hu Yan said with a chuckle.

"Wait a moment, before agreeing, I have another question to ask you two," Han Li suddenly interrupted Hu Yan.

"Fellow Daoist Li, feel free to ask," Hu Yan was stunned, but he was not angry, and said.

"Li is just a True Immortal cultivator, and my supernatural powers and strength are far inferior to you two. Even if I go in, I'm afraid I won't be able to help you much. Senior Hu Yan spent so much effort to invite me to go with you, there must be a reason, and I need to know this reason clearly," Han Li stared at Hu Yan and said slowly.

"Regarding this question, even if you don't ask, I will explain it later. I have already said that the purpose of entering the Netherfrost Immortal Mansion this time is to obtain something. In this process, if you can assist with your Mantra Treasure Wheel supernatural power, the success rate will greatly increase," Hu Yan said with a smile.

"Since it's to obtain a treasure, competition is inevitable, and I'm afraid it will be full of dangers, right?" Han Li frowned and said.

"There will naturally be dangers, but how precious is the Mantra Wheel Sutra? If you want to obtain it, you must take some risks. Of course, within our capabilities, we will try our best to protect you," Hu Yan glanced at Yun Ni and said with a faint smile.

Han Li's brows remained furrowed as he listened to these words, still hesitant.

"How about this, to show my sincerity, as long as you enter the Immortal Mansion with me, I will tell you the fourth level of the Mantra Wheel Sutra. After we get that thing, I will give you the next two levels of cultivation methods," Hu Yan said.

Han Li looked a little surprised when he heard this, and after a slight thought, he remained silent, which was considered a default.

"How is it, Fellow Daoist Li, do you have any other questions?" Hu Yan asked with a smile.

"No," Han Li shook his head.

"That's good, our agreement is reached. Don't worry, after the event is completed, I will fulfill my promise," Hu Yan laughed.

"I have known Senior for many years, so I will naturally not doubt this," Han Li smiled slightly.

"Fellow Daoist Li, please come up to the flying boat. After all, we are in the Fallen Soul Wind, so we can't stay for long," Hu Yan said with a smile when he saw this.

Han Li looked at the yellow flying boat and flew up.

Hu Yan waved his hand and cast a spell. Bright spiritual patterns appeared around the yellow flying boat, especially the three yellow crystals, which shone brightly, spewing out three bright rays of light, and once again condensed into a yellow light group to wrap the flying boat.

The light group spun around and shot forward extremely quickly.

The yellow light group emitted a special aura fluctuation, which seemed to restrain the Fallen Soul Wind. Wherever it passed, the surrounding Yin wind and black air automatically retreated to both sides, unable to penetrate the yellow light group at all.

Han Li sat on the flying boat and could not even hear the howling of the Yin wind outside, which surprised him.

He didn't know what kind of treasure this flying boat was. It seemed to have the same effect as his Wind Stabilizing Pearl, but it was ten times stronger. Hu Yan and Yun Ni must have crossed the Fallen Soul Wind with this flying boat.

With this thought, he carefully looked at the yellow flying boat, especially at the three yellow crystals on the flying boat.

"These crystals are made of the bones of the Evil-Repelling Beast," Yun Ni, who was next to him, noticed Han Li's gaze and explained.

"Evil-Repelling Beast? Is it the legendary auspicious beast that can ward off evil and bring good fortune?" Han Li said in surprise.

He had seen the name Evil-Repelling Beast in ancient books. This beast was a legendary beast that could restrain all Yin souls and ghosts, and was very famous in the Immortal World.

There was also a legend about this beast. It was said that with this beast by its side, one could drive away misfortune and enjoy peace and prosperity. It was called an auspicious beast. A hunting craze for this beast once broke out in the Immortal World a long time ago. After that, the Evil-Repelling Beast became increasingly rare and is now almost extinct.

"I don't know if the Evil-Repelling Beast can ward off evil and bring good fortune, but this beast is a pure Yang beast. Hu Yan took the power of its bones and refined this flying boat to cross the Fallen Soul Wind," Yun Ni said with a slight smile.

"I see, Senior Hu Yan is really generous. By the way, Senior Yun, I wonder how Bai Suyu is now?" Han Li nodded and asked.

"Yuan'er left the Candle Dragon Dao before the Dao preaching conference. Now she is cultivating in a safe place. Thank you for your concern, Fellow Daoist Li," Yun Ni said.

"That's good," Han Li nodded.

When he mentioned this woman Bai Suyu, he couldn't help but think of Meng Qianqian and others who had followed him. In order not to expose his identity, he had not contacted them for many years.

However, everyone has their own path to take. Meng Qianqian and others left his protection, perhaps they can find their own path.

Han Li shook his head secretly, stopped thinking about these things, and closed his eyes to cultivate.

Three days passed in the blink of an eye.

It would have taken Han Li more than ten days to fly across the distance, but he flew out in three days on this yellow flying boat.

"This is the Black Wind Sea Area..." The three stood in mid-air, looking at the sea area in front of them. Hu Yan breathed in the humid and salty sea breeze, with a hint of surprise in his eyes.

"The Black Wind Sea Area is the frontier of the Northern Cold Immortal Domain. The spiritual energy is thin here, so naturally it cannot be compared with other places. We are currently in the northwest frontier of the Black Wind Sea Area. This is the map of the entire Black Wind Sea Area." Han Li smiled and took out two map jade slips and handed them to the two.

Hu Yan took the jade slip, his divine sense probed into it, his white eyebrows twitched slightly, and said: "This Black Wind Sea Area is really not small in area."

"Although the Black Wind Sea Area is remote, if you talk about the area, it is not smaller than a general continent," Han Li nodded.

Hu Yan frowned slightly, put away the jade slip, and then waved his hand. A blue light flashed in his hand, and one more thing appeared, which was a blue painting, with mountains and rivers painted on it. It looked like a spiritual treasure.

"Oh, this is... the Netherfrost Landscape Painting!" Han Li exclaimed softly, staring at the blue painting without blinking.

"Oh, Fellow Daoist Li recognizes this thing?" This time it was Hu Yan's turn to be a little surprised.

"I once saw someone auctioning this thing at a secret auction before the Dao preaching conference of the Candle Dragon Dao, but at that time it was a remnant map, and it was auctioned off at a high price. Could it be that Senior Hu Yan was the one who photographed this item?" Han Li thought of something and asked.

"The Netherfrost Landscape Painting appeared at the auction before the Dao preaching conference? This is the first time I've heard of this, but this painting of mine was obtained from another place, and it's definitely not the one you saw," Hu Yan said with a look of surprise.

"Oh, so there are two Netherfrost Landscape Paintings? Judging from the name, is this painting related to the Netherfrost Immortal Mansion?" Han Li touched his chin and asked.

"That's right, to enter the Netherfrost Immortal Mansion, you must have this Netherfrost Landscape Painting. This thing can be a key. As far as I know, there are a total of eight paintings. The Northern Cold Immortal Palace, the Fuling Sect, the Cangliu Palace, and the Candle Dragon Dao each have one, and the other four are scattered outside, and their whereabouts are unknown. What you saw at the auction should be one of them," Hu Yan said thoughtfully.