At this moment, a piece of stone skin was peeled off, revealing a very dazzling metallic luster, and it turned out to be a very dense refining stone.

Looking at the stone refining wall, Li Dong slashed down with a wave of his hand again, bursting out a large spark, and the entire stone wall was still unbroken.

The blue light swirled, and the half-moon slash was taken back by Li Dong, and the immortal energy cloud instantly made the black tiger's expression freeze. He looked down at the medium-grade Horcrux in his hand again, feeling like the fluorescence of rice grains and the feeling of the bright moon.

"Brother Han, you're too cool, isn't it, shouldn't this half-moon slash have been refined into a mortal weapon by you?" the black tiger turned around and said with an obsessive expression.

"Half Moon Slash Four Rank Mortal Weapon, that was Fan Liyun just now" Li Dong also smiled at him, with a flick of his wrist, another green light shot towards the stone wall, and the squeaky electric light actually shot down lightning from the energy of the mortal immortals.

"Ah? What is the concept of the four-grade mortal weapon" The black tiger can't believe his ears, since the three generations of Luan Mansion, he has only heard that there is a second-grade mortal weapon enshrined in the Luan Mansion Divine Weapon Hall, and countless Luan Mansion disciples don't want to see it, but unfortunately the black tiger's status is low, but he has never seen it with his own eyes!

What appeared in front of him now was a four-grade mortal weapon, and the consternation, the hesitation, made him dance.

He stared intently at the stone wall opposite Li Dong and him, and cut a stone wall with a mortal immortal weapon, which would undoubtedly cause the rhythm of the collapse of the entire secret room.

The black tiger shuddered, not knowing whether it was surprise or worry.

After another violent vibration, the stone wall was not damaged at all, and the Fan Li Cloud was actually bounced back.

Li Dong had no choice but to withdraw his hand, the hardness of the stone wall in front of him was beyond his imagination, and he couldn't break the weapon with a half-moon slash.

"Brother Han, could it be that this stone wall is more powerful than the four-grade mortal weapon?" The black tiger looked at the Qingmang Half-Moon Slash in Li Dong's hand with a confused expression, as well as the stone wall that scattered cold light on the opposite side.

"The old man must have refined this stone wall with an extremely high-grade energy stone, and even the four-grade mortal weapon can't break it," Li Dong could only nod silently.

"Old man, do you say that this stone wall is an old man who burns a fire in the yard all day" Black Tiger had a surprised expression on his face, "The stone wall really has to be practiced by him?"

"How can a person who can refine such a stone wall just make a weapon fire in the refinery" Li Dong smiled and said: "Actually, I have long suspected that the old man's identity is not simple, the reason why he is hiding here as a weapon fire may not be for the armory factory, but for those heavenly stones" After Li Dong knew the secret of the Heavenly Stone and the Imperial Dragon Divine Costume at this moment, he felt that many mysterious things that happened seemed to be related to it.

"The old man has been in Luan Mansion for as long as he can remember, and even when my grandfather was transporting the spars, he was already here, how could it be" Black Tiger still couldn't believe that all this was real in front of him.

"I'm also very confused about this matter, I'm afraid that only the old man himself can explain the reason," Li Dong sighed and shook his head.

"He's a dumb man, I'm afraid we'll never get anything out of his mouth," said Black Tiger.

Li Dong recalled the experience of practicing leaving the fire with the old man, and the old man never said a word from beginning to end. Even if he wasn't a dumb man, he didn't want to know a single secret from his mouth.

Unless he wants to tell you himself, thinking of the Heavenly Stone, and the old man refining the Heavenly Stone every day, and then deliberately purifying the energy stone to let himself cultivate the Fire Separation Technique.

All this seemed to imply some kind of purpose, Li Dong pondered for a long time, and suddenly realized that the old man's intention was to use his own hands to refine the heavenly stone.

In fact, this is also what Li Dong desperately wants to do at this time, but the old man has long been gone, and now the only secret room is also blocked by this hard stone wall.

It seems that wanting to know the secret of the Heavenly Stone Refining Body is almost his wishful thinking.

For the sake of the mortal immortal seniors, I must find the secret of the Heavenly Stone Quenching Body! Li Dong mustered up the courage to slash towards the stone wall repeatedly.

Ever since he knew that the Golden Masked Man was the identity of the Lord, he knew that he could no longer know the secret of the Heavenly Stone Refining Body from his mouth, and he had already placed all his hopes on the old man's secret and those purple power stones.

He thought, since the old man could refine the Heavenly Stone, how could he stump him with just the secret of refining. But now everything is slim.

The blue light was shocked, and the adobe of the stone wall fell, revealing an incomparably bright metallic luster, but it could not break through the wall.

At this time, he felt a little frustrated, and he sat down boredly opposite the stone room, while the black tiger kept staring at the half-moon circle on his palm.

Li Dong glanced at him sideways, and immediately understood his thoughts and smiled: "Brother Black Tiger, you go and collect some star stones and energy stones, and I will help you refine a mortal weapon."

The black tiger 'uh', almost unable to believe that this was true, and said in a panic, "Okay, okay, I'll go collect it right away, I can as much as I want, you wait".

The black tiger ran out in a panic all the way, and Li Dong was almost not laughed at by his flustered pace. After the black tiger left, Li Dong began to operate the Imperial Soul Technique in his body, preparing for the quenching weapon, and the soul power was condensed all around, but he was never able to light up the stars.

Now Li Dong knew that the gap between the soul power inside and outside the realm of the Lost Immortal was simply a world of difference, and he had no choice but to take out more than a dozen soul crystals from his arms and pinch them, but his soul power was still not enough, and he had never been saddened by the soul crystals, but at this moment, he was in trouble.

Suddenly, he remembered the Xuanyuan card in his arms, which was just a waste card before, but now that he has come out of the Wonderland, this card can go to the Xuanyuan clan to receive millions of soul crystals.

This is a large amount of wealth that can make countless people go crazy, thinking of this, Li Dong decided to find a Xuanyuan clan outer hall in exchange for some soul crystals to come back.

Xuanyuan is also one of the royal families in Kyushu, with the Xuanyuan Temple as the clan land, and dozens of Xuanyuan Palaces are set up, specializing in the sale of soul crystals, and more than seventy percent of the soul crystals in the Kyushu Continent are from the Xuanyuan Palace.

Fortunately, one of them, the Xuanyuan Palace, was very close to the territory of Luan Mansion, and Li Dong estimated that the round trip would not exceed three moments at most, so he was naturally in a hurry to refine the Black Tiger Weapon.

He no longer hesitated, the soles of his feet flashed, and the figure had already floated into the air, flying towards the Xuanyuan Palace.

At this time, under the Mortal Weapon Imperial Weapon, Li Dong felt how fast his speed was, before he could only cross half of the Arsenal Factory with his soul power Imperial Weapon, but now he had already reached hundreds of miles outside the scope of the Arsenal with a single thought.

He soon came to the territory of Luanfu, a flourishing town, where there is a Xuanyuan Palace, and most of the refining soul crystals of Luanfu's weapons are usually purchased from him.

Although Li Dong has seen this Xuanyuan Palace, he has long been familiar with him, and he also knows that the name of the head of this Xuanyuan Hall is Xuanyuan Lang, who is about forty or fifty years old, shrewd and capable, and he has more than a dozen Xuanyuan dead soldiers under his command, each of whom is cultivated to a high level, and they have the attention of no one who dares to beat Xuanyuan Palace.