Yuan Ming carefully looked at the stone wall in front of him, and sometimes reached out to touch and knock.

After some investigation, he soon found something strange, and when he struck a place on the mountain wall, it made a distinct echo, as if it was empty.

"Could it be that someone has hidden some treasure here?" Yuan Ming's heart moved, turned his hand and took out the herring sword, and stabbed it there.

There was a soft sound of "poof", and the herring sword easily pierced in, almost not feeling much resistance, it was indeed hollow inside, and the stone wall was only three inches thick.

Yuan Ming pulled out the herring sword and stabbed it a few times, and the stone wall was completely shattered, revealing a five-foot-high semicircular hole, and inside was a stone room-like space.

The greedy child cheered, and his figure jumped in.

Yuan Ming was worried that there was fraud in it, which would hurt Huo Yu'er, so he hurriedly chased after it.

The entrance of the cave is indeed a stone room, there are seven or eight zhang square, it seems to be a person's residence, a stone bed, a stone table, a stone bench, there is no shortage of everything, there is a bookshelf against the wall, and there are more than a dozen green books.

These things are covered with a thick layer of dust, and apparently no one has lived in them for a long time.

Yuan Ming looked around, found no danger such as organs, put his mind at ease, walked to the bookshelf and took down the rightmost book, the cover was written with three big characters "Strange Stone Record", and there were two small characters of "Volume One" in the lower right corner of the cover.

He flipped through it roughly, and the contents were just like the name of the book, introducing various ores, each of which was recorded in great detail, far above some of the ore classics in the Guizang Pavilion.

Because of his work in the fire workshop, Yuan Ming thought that he was familiar with all kinds of ores, but the contents of the book were several times more detailed than he knew, and many of the contents were unheard of.

He took other books, all of which were "Strange Stone Records", from volume 1 to volume 16, collecting the nature, origin, and use of thousands of ores in the world, which were exhaustive and exhaustive, and it was simply a complete collection of ores in the world.

Compared with it, the "Herborist" he got before, as well as the "Fundamentals of Qi Refining" in Huofang, were crude and made people blush.

"Okay, great." Yuan Ming clenched the book in his hand.

When he first entered the realm of cultivating immortals, he needed such monographs to enrich his knowledge.

It's just that there are too many contents of these dozen or so "Strange Stone Records", and he can't finish reading them for a while, so he immediately put all the books into the storage bag.

"I don't know who used to live here? There is such a set of ore books. Yuan Ming looked around, a little curious about the people who had lived here.

Judging from the situation here, the other party has been away for a long time, and I don't know whether he left temporarily or completely abandoned this place, in short, he didn't take these precious classics with him, but he cheapened himself.

At this moment, the sound of "snort" and "snort" came from the side, accompanied by the rapid cry of the hungry child.

Yuan Ming looked over, but it was Huo Yu'er lying on a stone wall in the deepest part of the stone room, scratching and scratching there.

"Hey, it's hollow too?" He walked over and knocked on the stone wall, and sure enough, there was an echo.

It's just that this time the echo is very weak, and it is obvious that the stone wall in front of you is quite thick, and it cannot be broken as easily as before.

"It seems that this is a dark room, and generally speaking, the door of the dark room is opened with a mechanism." He searched the vicinity, and soon found an inconspicuous raised stone in the corner of the stone wall not far away.

Yuan Ming held the stone, moved left and right, and with a soft "click", the stone turned half a circle.

The stone wall slowly moved to the side, revealing a dark passageway.

Huo Yu'er showed excitement on her face, and immediately flew in, and was grabbed by Yuan Ming from behind.

"This place is weird, don't be careless." He said slowly, and with his other hand, he took out the skin of the white ape and draped it on his body, and after turning into the form of a white ape, he carefully entered it.

The height of the passage was limited, so he lowered his head slightly to pass, and walked carefully along the way, and it took him a while to reach the end.

This is also a stone chamber, about the same size, and unlike the outside, there is a casting furnace here, and the flame inside has long been extinguished.

This casting furnace is much larger than the one in the fire workshop, and there are many mysterious patterns engraved on it, which seems to be an ordinary casting furnace.

Next to the furnace, there is also an anvil for forging, a shelf, etc., like a complete refining room.

Huo Yu'er kept shouting at the shelf, and there were four or five red jade stones placed on the shelf, which looked very similar to Huo Pu Jade, but the fluctuations of fire attribute spiritual power emitted were extremely amazing, far from being comparable to Huo Pu Jade.

Yuan Ming also carefully probed the surrounding environment and confirmed that there was no danger before walking over and picking up a piece of red jade.

"This jade...... It's fire chalcedony! His eyes lit up.

If the environment is suitable and the firepower is abundant, the fire jade can continue to absorb the power of the fire spirit to evolve, and it may be transformed into a new ore after more than a hundred years, fire chalcedony.

The fire hungry let out a squeaky scream, her eyes fixed on the fire chalcedony, and saliva dripping down.

"Little gluttonous cat." Yuan Ming smiled slightly, and stuffed the jade in his hand to Huo Yu'er, which was regarded as a reward.

Huo Yu'er grabbed it, held it in his arms and gnawed happily.

Yuan Ming took the opportunity to put away all the remaining four pieces of fire chalcedony.

The fire attribute spiritual power contained in the fire chalcedony is more than ten times that of the fire jade, which is already considered a medium spiritual material and is very valuable.

The place in Biluo Cave where there are spiritual materials that can be directly exchanged for contribution points is called Qingfutang, and a piece of fire chalcedony is enough to exchange for ten contribution points, which is equivalent to the amount of collecting a hundred blue water stones.

Yuan Ming was in a good mood, with these pieces of fire chalcedony, this risk was not in vain.

He walked around the stone chamber to the other side of the forge and paused.

I saw a corpse lying here quietly, because it was blocked by the casting furnace, so I didn't see it.

The corpse held a dark red hammer in his right hand, the handle of the hammer was a bronze wood, I don't know what kind of wood, the hammer head was dark and shiny, and it was engraved with dense flame patterns, which looked somewhat similar to the gravel hammer pattern in the fire workshop, but there were ten times more of them.

Yuan Ming tried to pick up the hammer, this thing turned out to be extremely heavy, more than five times heavier than the casting hammer in the fire workshop, fortunately, he is now a white ape transformation, if it is in a humanoid state, it is estimated that even if he can lift it, he will not be able to swing it easily.

He transported his mana and poured it into it, and with a muffled "boom", a flame-like red light suddenly rose from the hammer, and a strong and abnormal mana fluctuation erupted, and the air nearby hummed and trembled.

"What a powerful hammer, isn't it a magic weapon?" Yuan Ming's face was overjoyed, and he hurriedly used his exorcism technique to try to control it.

The light on the crimson hammer flickered, and it reacted strongly to the exorcism, but it was not something that could be driven immediately like an incense burner.

Yuan Ming didn't care about this, let out a low sigh, and swung his hammer to smash into a nearby stone wall.

There was a loud "boom", there was a sound of thunder and fire, the thick stone wall collapsed, and cracks appeared on the other walls of the stone chamber.

This seemingly solid stone chamber was almost smashed by him with a hammer.

Yuan Ming was surprised and delighted in his heart, he didn't expect the attack power of this hammer to be so amazing, even if it was not a magic weapon, it was not far off.

The only pity is that this hammer is too heavy, even with the power of the white ape's transformation and blessing, it is not very easy to wield, and it is still inconvenient to use in battle.

He shook his head regretfully, put the dark red sledgehammer into his storage bag, and then looked at the corpse in front of him.

The body of the corpse is quite tall, it looks like it should be from southern Xinjiang, and the clothes on the body are also in the style of southern Xinjiang, and they have not decayed much, so it can be inferred that the time of this person's death should be in the past two years.

Yuan Ming carefully flipped over the corpse, and with a soft "click", a black pouch fell, and a faint aura of prohibition lingered on it.

He was no stranger to this breath, as he also had something similar, and this little bag was a storage bag.

"There is a storage bag, it seems that this person is also a monk, and his cultivation is not low!" Yuan Ming raised his eyebrows, carefully took the bag, transported the mana and poured it into it, and operated according to the refining method taught by the Lord of the Three Caves.

The black pouch was quickly refined, revealing the inner space.

He was shocked, the space in the black pouch was very large, the storage bag given to him by the Lord of the Three Caves was only five or six feet square, similar to the size of a wardrobe, but this black pouch was half the size of a room.

According to the information he learned, in the immortal cultivation world in this area of southern Xinjiang, storage magic weapons are already precious, the larger the internal space, the higher the value, this black pouch has such a large internal space, I am afraid that if you sell it, you can directly exchange it for several attack magic weapons.

Yuan Ming's heart thumped, he clenched the bag, turned around and looked around, looking like he was afraid of being seen.

But the next moment he realized that this was an uninhabited desert island, and he was afraid that there was no one else on the island at all except him, and he couldn't help but laugh a little dumbly.

The black pouch was not empty, and in the corner lay a white book the thickness of bricks, and a dozen red cobblestones the size of pigeon eggs.

Yuan Ming took out a red cobblestone, and a fiery red light appeared in it, and a wave of spiritual power fluctuated from it, although it was not very strong, it was very pure.

"This thing is a spirit stone!" He whispered to himself.

The so-called spirit stone, as the name suggests, is a stone that contains the aura of heaven and earth, and it is the most common and important type of resource in the world of cultivating immortals.

The basic essence of the cultivation of thousands of monks in the world is to absorb the scattered spiritual power between heaven and earth, and transform it into mana that they can control through various exercises.

It's just that the spiritual power between heaven and earth is scattered and mixed with each other, and it takes time and effort to extract one of them for refining, which is also the biggest obstacle to the monk's rapid cultivation.

There are some caves in the world that are born with strong spiritual energy, forming spiritual veins, and after years and months, it is possible to give birth to spiritual stones near spiritual veins.

The spirit stone contains spiritual power in the spiritual vein, which is extremely pure, and it can be directly incorporated into the mana without the need for exercise refining, and the cultivation speed is much faster than the usual exercise meditation.

With this effect, the spirit stone can be called the first treasure in the immortal cultivation world, and it is even used as a hard currency for trading.

However, the role of the spirit stone can not only assist cultivation, under the research of the immortal cultivators of the past generations, it has been applied to refining weapons, alchemy, arranging magic circles, etc., which can play a more peculiar and wonderful use, it can be said that as long as it is something that requires spiritual power, the spirit stone can play a huge role.

With so many uses, the spirit stone has become sought-after, and all sects and factions are competing for this rare resource, how else Yuan Ming doesn't know, but it is said that the only spirit stone mine in Biluo Cave is regarded as an important place for the sect, and a large number of monks are sent to protect it, and one of the most popular tasks in the Xing Deacon Hall is the task of the spirit stone mine.

(Today continue to ask for tickets for four more ^ ^)

(End of chapter)