After entering the Secret Land Passage of the Cliff Valley, Qin Lang's divine sense also shortened a lot due to the viscous Earth Demon Yin Qi inside the Secret Land, from a range of three hundred zhang to about fifty zhang.

After walking for about a decade or twenty, Qin Lang's divine sense detected a powerful aura in front of him, which should be a demon beast, or a yin beast, which could be roughly equivalent to a cultivator in the late stage of foundation building.

For the demon beasts or yin beasts in the late stage of foundation building, Qin Lang in the middle stage of the Yuan Infant naturally didn't need to pay too much attention, and continued to walk forward directly, and soon saw a deformed leopard with three heads, this leopard saw a stranger intruding into his territory, and immediately roared and was about to attack.

However, as soon as Qin Lang let go of his body's aura, under the pressure of the powerful aura of the mid-Yuan Infant Xiuzhen, the three-headed leopard suddenly collapsed, lying on the ground and whimpering.

"Get out!"

Qin Lang roared at the three-headed leopard, and then the sound spread in front of the passage, constantly forming wave after wave of echoes in front of him, "Roll ...... Get lost...... Get lost...... Rolling ......" goes on and on, and I don't know where this echo will end up.

And where could the three-headed leopard in front of him withstand such a fright, and under the flow of urine, he immediately stumbled and ran away.

While escaping, it is estimated that this guy is still thinking: "Where did this such a terrible demon come from! It's terrifying, such a powerful aura, it is estimated that one finger can kill the leopard master and me!"

Ignoring the three-headed leopard who fled in a panic, Qin Lang continued to walk deep into the passage of the secret land of the cliff valley, cultivating to the point where he was here, not to mention walking sideways on the earth, but there were indeed not many existences that could threaten him.

In fact, when he walked through this passage, Qin Lang's divine sense was not unaware of other special beings, but the wave of powerful echoes just now had already frightened most of the special creatures in this secret place, and the passage was unimpeded, and not a single special creature jumped out to block the way.

Next, Qin Lang went deeper and deeper, the interior of this cliff valley secret place was completely oval-shaped passage structure, and the surrounding mountain walls were ribbed structure, so that Qin Lang, who was walking in the passage and did not go deeper, had an illusion, as if he was walking in the body of a large monster.

However, there shouldn't be such a big creature in this world, Qin Lang has walked four or five miles in the secret passage now, if there is really such a monster in the world, it is really unimaginably big.

After walking for about ten miles, Qin Lang finally came to a place and stopped, this is actually the end of the passage, but the reason why Qin Lang stopped was because he had made a new discovery.

There are traces of excavation on a mountain wall, and there are faint strong aura fluctuations, Qin Lang carefully used his divine sense to investigate, only to find that this is a small-shaped spirit stone vein, and this spirit stone vein is very pure, the eldest brother "Tang" of the "Kan" tribe before should be a medium-grade spirit stone excavated here.

After discovering the origin of the medium-grade spirit stone, Qin Lang was also overjoyed at the moment: the small spirit stone vein, and it was also a small spirit stone vein with high purity, if the spirit stone of this vein was completely excavated, there would definitely be a lot of medium-grade spirit stones.

In fact, it was not appropriate to say that it was a small spirit stone vein, and then he used his divine sense to probe, this small spirit stone vein was at most three hundred meters deep, which was considered a miniature spirit stone vein.

However, the quality of this miniature spirit stone vein spirit stone is really nothing to say, except for the low-grade spirit stone, it is the medium-grade spirit stone, the ratio is about ten to one, this ratio is very good.

At that moment, he got busy, and first used the Heaven and Earth Flow Refining Technique to refine a set of magic weapon-level excavation tools to mine the spirit stones here.

Then, Qin Lang's life as a miner officially began, and this set of magic weapon-level mining tools includes Luoyang shovel, miner hoe, miner's hammer, etc., which looks very professional.

"Haha, a magic weapon-level mining tool, the earth is also unique at present, there is no other semicolon!"

Qin Lang also smiled proudly when he saw that he had successfully refined the mining tool using the Heaven and Earth Flow Refining Technique.

In fact, not only the earth, but even the cultivation realm is not as luxurious as Qin Lang, using magic weapon-level mining tools, you must know that the spirit stone miners in the Qinghe Continent of the cultivation realm actually use ordinary fine iron tools to mine spirit stones.

Mining spirit stone is a very hard process, the rock mass of the vein that produces spirit stone is generally ten times harder than granite, and a large number of spirit stones are embedded in it, but the hardness of spirit stone is not as hard as the rock mass, and it will be broken in the process of taking spirit stones, which greatly reduces the overall value of spirit stones.

However, these mining processes, which are a big problem for ordinary miners, are not valid for Qin Lang at all, holding a magic weapon-level mining tool, digging up the rock formation in front of him is as easy as cutting tofu with a knife.

And Qin Lang is a clever person, it doesn't take much effort to take the spirit stone out of the rock formation, the test is the eyes, techniques, and cultivation ability, you must know that Qin Lang's ability in the middle of the Yuan Infant is much more than that of ordinary miners in the cultivation realm.

In fact, in the cultivation realm, only disciples in the Qi refining and foundation building period will be miners, and cultivators above the Dan stage will not like to do this, and spirit mining miners are a lowly profession, if they know that cultivators above the Yuan Infant Stage will fall to the point of being miners, they will definitely laugh off their big teeth.

In fact, there are many ways for cultivators above the cultivation realm to find money, and many jobs are better than mining spirit stones, so there is really no need to do such thankless hard work.

However, the situation on the earth here is different, and now Qin Lang is already so hard that he doesn't have much resources, especially the spirit stone resources are even more scarce, so he doesn't mind being a hard hand spirit stone miner.

Click......

Not to mention, the efficiency of magic weapon-level mining tools is really good, Qin Lang has already penetrated two meters into the mine wall in less than ten minutes, and in the process, he found about a dozen medium-grade spirit stones, all of which were in his pocket.

Of course, there are more low-grade spirit stones, which are about ten times more than the medium-grade spirit stones, but Qin Lang has no need for lower-grade spirit stones, and a medium-grade spirit stone is at least equivalent to a hundred lower-grade spirit stones.

Therefore, the low-grade spirit stones of this vein were directly ignored by Qin Lang, and what he was looking for was directly the spirit stones of the grade above the medium-grade spirit stones.

It's a pity that although the quality of the spirit stone in this miniature vein is very high, in addition to the lower-grade spirit stone that is the medium-grade spirit stone, there is no higher-grade spirit stone found in the spirit stone, which is also a fly in the ointment that Qin Lang felt in the process of collecting.

Click......

Now Qin Lang is moving forward at a mining speed of about twenty medium-grade spirit stones every ten minutes, collecting more than a hundred pieces in an hour, which is not too fast, nor too slow.

He was temporarily preparing to spend ten days and half a month on this vein to see if he could mine the medium-grade spirit stones of this vein, according to his prediction, if this miniature spirit stone vein was mined and cleaned, at least nearly sixty thousand medium-grade spirit stones would be harvested.

Sixty thousand medium-grade spirit stones in the cultivation realm are not much for cultivators in the Yuan Infant Stage, but it is also a lot of wealth, and on the resource-scarce earth, Qin Lang can get such a large amount of spirit stone income, which can be said to be a complete surprise.

Spirit stones, spirit stones, medium-grade spirit stones for special cultivation, you can't exchange them if you want to find someone on the earth!

Click, thinking of this, Qin Lang dug harder and harder, and his digging speed gradually accelerated a lot, at first he could only mine more than a hundred pieces per hour, but now with the increase in mining speed, it has increased to two or three hundred pieces per hour, and the speed has more than doubled.

Of course, this is also the reason why Qin Lang's familiarity with mining has increased, and as the proficiency of mining increases, the speed of mining medium-grade spirit stones will naturally increase.

Compared with ordinary miners, Qin Lang, a miner in the middle of the Yuan Infant, has the biggest advantage that his divine sense is strong enough, and he can see the location of each spirit stone more accurately during the mining process, and there will be no errors in the mining process, and the medium-grade spirit stones will be accidentally destroyed.

For the next week or so, Qin Lang spent all his time with this miniature spirit stone vein, and except for two hours of meditation every day, the rest of the time was spent on mining.

Such uninterrupted and high-intensity labor, not to mention ordinary people, even the disciples of the cultivators in the Qi refining and foundation building period may not be able to persevere, this is completely overdrawing physical strength and energy.

At present, only Qin Lang in the middle of the Yuan Infant can stand this kind of high-intensity labor, and as the mining time passes day by day, Qin Lang not only does not feel tired, but becomes more and more excited day by day, because with each piece of medium-grade spirit stone in his pocket, he can feel that his purse is bulging a little bit, and this feeling of fullness has not been experienced for a long time.

Qin Lang was indeed full of desire for resources, especially spirit stone resources, so he would have this state of beating chicken blood.

Now he still needs spirit stones, although there are things in the Qinghe Continent that are more useful than spirit stones, which can be directly used for cultivation, but this is the earth, it is estimated that if he does not have an accident in the future, he will not return to the Qinghe Continent, so the spirit stone is equivalent to the food for his cultivation, and it is not missing.

That's why he was so interested in digging it up.

It took about ten days, Qin Lang finally dug to the end of the ore vein, and at this time, he dug hard, and when Lang banged, a large piece of hard rock layer fell, and a rich aura rushed to his face.

"High-grade spirit stones?" Qin Lang was overjoyed, he couldn't imagine that there was a small nest of high-grade spirit stones at the end of the vein, although the number was not much, but there were still one or two hundred pieces.

This unexpected gain made Qin Lang, who was already almost exhausted to the extreme, cheer up again, and then worked hard to continue digging at the end of this vein, and mined the high-grade spirit stones in this small nest in front of him little by little.

After mining, the net worth of the spirit stones on Qin Lang's body has changed, the medium-grade spirit stones have increased to more than 70,000 pieces, and the high-grade spirit stones have also recovered to more than 900 pieces.