Mortal: I became invincible after becoming sworn brothers with Han Li.

Back in his cave, Li Yunfan sat cross-legged on a futon, feeling both excited and worried. It took him a while to calm himself down.

"Ironwood Mountains... Remains of a Cultivation Cave..."

According to Elder Feng, when he was traveling in the "Southern Han Kingdom" more than seventy years ago, he heard that some cultivators had discovered an abandoned cultivator's cave in the Ironwood Mountains of the country. He originally wanted to go and investigate, but was delayed by some things.

Then I heard a rumor that there was a strange spirit fire that had begun to develop sentience in a cold cave deep inside the cave!

Such treasures naturally attracted many cultivators who went to explore them, resulting in the deaths of many Foundation Establishment cultivators...

As for whether the spirit fire was eventually taken away by the cultivators or escaped from the cave on its own, Elder Feng had no idea, because at that time he suddenly received an order from the sect, so he returned to the sect.

Thinking about all this, Li Yunfan's brows gradually furrowed. After pondering for a moment, he suddenly murmured to himself.

"Looks like I'll have to try my luck..."

He appeared relaxed in the main hall, but in reality he was extremely anxious. When he actually heard Elder Feng mention the spirit fire, his heart sank.

However, just as Elder Li said, spiritual fire is a rare and precious thing. Now that he has learned the news, even if the hope is slim, he will go and see for himself and will not let go of any opportunity!

He took a deep breath, suppressing the thought in his heart, and then took out a jade box from his storage bag. He opened the lid, and inside lay a thumb-sized, milky-white pill, the Spirit-Stabilizing Pill that had been awarded to him.

He examined the pill closely, a hint of surprise flashing in his eyes.

Although this Spirit-Stabilizing Pill was refined using the pure liquid flowing from the Spirit Eye Tree, the pill did not emit a particularly strong spiritual energy. Instead, like ordinary pills, it only emitted a faint medicinal fragrance. If this pill had not been given to him personally by a Core Formation cultivator, he would have thought it was just an ordinary pill.

With a "snap," he slammed the box shut and put it back into his storage bag. Although this pill could enhance cultivation, he wouldn't be foolish enough to actually use it to improve his cultivation, much less sell or exchange it. He still wanted to use it to reduce the power of his inner demons' invasion when he broke through to the Nascent Soul stage in the future.

Then, he took out a small, antique-looking blue bell from his storage bag. It was covered with various incantations. This bell was called the "Heavenly Sound Bell," a top-tier magic weapon, and also a reward from the Sword Trial Tournament.

Holding the bell in his hand, Li Yunfan's thoughts stirred, and his spiritual power surged towards the small bell. As his spiritual power poured in, a blue spiritual light appeared on the surface of the small bell and grew stronger and stronger, but its size did not change at all.

Seeing this, Li Yunfan pondered for a moment, then suddenly raised his other hand and flicked the small bell.

"Thump!"

A very deep, muffled sound came from the small bell and echoed continuously in his semi-enclosed cultivation room.

In an instant, Li Yunfan felt his spiritual energy stagnate, as if he were stuck in a quagmire, circulating extremely slowly. However, this only lasted for a moment before returning to normal.

In order to test the attack effect of the Heavenly Sound Bell, he did not take any precautions and completely placed himself within the attack range of the Heavenly Sound Bell, which is why he was affected.

A look of shock appeared on Li Yunfan's face, and his gaze toward the Heavenly Sound Bell gradually became fiery. The bell's attack could actually cause a cultivator's spiritual energy to stagnate for a moment!

It should be understood that battles between cultivators are inherently very swift, often decided in the blink of an eye.

Imagine this: if you were fighting an enemy and used the Heavenly Sound Bell to strike them, their spiritual energy would suddenly stagnate, rendering them unable to control their magical artifacts and even causing their basic protective spiritual shield to temporarily dissipate due to the stagnation of spiritual energy. However, you would be unaffected and could control your magical artifact to kill your enemy with a mere thought.

Such a powerful auxiliary magic weapon could not help but excite Li Yunfan. He held the Heavenly Sound Bell in his hand and played with it repeatedly before putting it back into his storage bag with a smile.

"With this bell, my strength will increase significantly, making it much safer to travel to the Southern Abyss Kingdom to find the spirit fire..." Li Yunfan thought to himself.

This was an unexpected surprise for him!

His fighting style has always relied on the Great Evolution Technique, using multiple magical artifacts to attack the enemy. If this method fails, he will use the Purple Nether Heart Flame and Yellow Spring Poison Flame as the main attacks, with magical artifacts and puppets providing support.

Now that he has the Heavenly Sound Bell, he can suddenly strike his opponent while he is using magical artifacts to attack, causing the opponent's spiritual energy to stagnate for a moment. He can then take this opportunity to use his magical artifacts to attack his opponent fiercely!

In this way, even if he is surrounded by two or three Foundation Establishment cultivators, he can use the Heavenly Sound Bell to unexpectedly kill one of them and directly reverse the situation!

Then, he took out a bottle of pills, poured out one and swallowed it, closed his eyes and began to cultivate. He wanted to quickly advance his cultivation to the late-stage peak before going to find the spiritual fire.

He only had some mid-Foundation Establishment level pills, but they still had some effect on him. After all, he wasn't like Han Li, who ate pills like candy. Although they weren't as potent as late-stage Foundation Establishment pills, they were better than nothing.

Moreover, his cultivation speed with his Fire Spirit Body was already no weaker than that of a Heavenly Spirit Root cultivator, so taking pills was just icing on the cake.

And so, Li Yunfan began his arduous training once again.

As for his eyes, which had been washed with the spiritual water of the Ming and Qing dynasties, he had already tested them in the forbidden area. They did indeed improve his eyesight considerably, allowing him to see further and gain some ability to see through fog and stone. He could even vaguely see some of the patterns in those profound restrictions, but that was all. It was absolutely impossible to break them with just that.

However, Li Yunfan guessed that if it were an ordinary array or restriction, he should be able to see more clearly with his cleansed spiritual eyes.

He didn't feel any regret at all. Anyway, when Han Li returned two hundred years later, he would steal the spiritual root of the Spirit Eye Tree to make spiritual water. When the two were reunited after so long, shouldn't Han Li, the second brother, "show some respect" to his elder brother?

Of course, these are things to follow.

Li Yunfan's primary goal now is to improve his cultivation, find spiritual fire, and advance to the Core Formation stage.

Nanyuan Kingdom is located northwest of Xi Kingdom. It is only one-third the size of Xi Kingdom, making it a very small country.

In the entire cultivation world of Nanyuan Kingdom, there are only a few large spiritual vein areas where some sects have been established; the rest are mostly cultivation families.

Jiangzhou is one of the four states of Nanyuan Kingdom. It is named after the Canglu River, a huge river that runs through it. It is precisely because of the Canglu River that Jiangzhou's shipping industry is very prosperous, making it the most prosperous of the four states.