However, it was the realization in the trance that seemed to split a crack at the threshold of his desire to break through the vacuum realm. But Cheng Tianle is a very practical person, and he is not in a hurry to break through the level and improve, but only cultivates his spiritual energy and restores his mana. By the time the rumbling thunder from the valley a mile away had faded away, it was the next morning. Cheng Tianle put Zi Hao into the Quchi cave, let Sheng Long hide it in his sleeve, ordered Daxue to wait outside the valley, and walked into the strange and mysterious valley with the dust in hand.

The mouth of the valley is only ten zhang wide, and a river flows out of the gravel, and Cheng Tianle walks in from the riverbed, and when he reaches it, it gets wider and wider, and the terrain is undulating, and there are many wild grasses and trees, but there is no trace of animals. Cheng Tianle's vision was blocked by the terrain, and he couldn't see the situation in the distance, but judging from the surrounding mountains, the depth was at least twenty miles.

The undulating, potholed wilderness, after entering the valley mouth, the terrain is getting higher and higher, Cheng Tianle found a very strange phenomenon. Although there are trees growing here, most of them are concentrated in low-lying areas, and few trees on the hills or ridges are more than a man tall. There was a lot of blackened dead wood everywhere, apparently struck by lightning. The same is true for the trees growing on the mountain wall in the distance.

There are frequent lightning strikes here, and almost all the taller trees exposed to the relatively open area are struck by lightning! One can imagine how dense and terrifying the thunderstorms here are. Cheng Tianle waited until the thunder stopped before coming in, but found that the thunder did not completely stop, in the far side of the valley, there were still clouds in the sky, the air convection near the top of the snow-capped mountain was very violent, and thunder and lightning still appeared from time to time.

Some of the bright lightning slashed horizontally between the clouds, some slashed diagonally towards the cliffs around the basin, and some fell directly on the opposite side, and after about a few minutes or tens of seconds, a thunderclap was heard in the basin. The place where the thunder thundered was about ten miles away, in the deepest part of the valley.

In other places, this is already quite an alarming thunderstorm, but in this thunder valley, compared to the dense thunder heard yesterday, it is very calm at the moment. Cheng Tianle walked not far into the valley, and there were already many scorched wood ruins that had been struck by lightning around him, and there was a smell of charcoal roasting accompanied by sulfur in the air. Thunder was already in the distance, but not so long ago. His foothold was also shrouded by thunder.

Cheng Tianle did not go deeper into the valley, but beckoned Sheng Long and Zi Hao: "Take advantage of the fact that there is no thunder at this moment, hurry up and look nearby, be careful not to drill too deep and too far, and come back as soon as you hear the call." ”

No need to go any further. There should be a falling Lei Jin here. According to Yu Daoyang's guidance: "When you see lightning striking wood and malachite, you will go into the ground to search for thick rock formations containing gold." There is red gold like pearls around it, which contains power and blue shell outside, which is the falling thunder gold. ”

Thunderbolt wood has been seen on the surrounding highlands, and Cheng Tianle also found several fist-sized pieces of gravel in the soil, and after knocking it open, the section is blue, and the crystal structure is about trapezoid, which is malachite. This valley is actually a copper vein that is exposed to the surface. This type of malachite has a high copper content.

The content of copper ore is very complex, and it is often associated with gold and silver ore. There are many fine ore veins distributed in the ground and on the cliffs on both sides, and the huge drop in the plateau valley and the violent cloud convection also lead to thunderstorms all year round, and the electromagnetic field in this area is abnormal. Modern electronic instruments brought into this valley mostly fail.

Due to the presence of ore veins exposed on the surface, lightning often slashes into mountain cliffs or deep underground, along the direction where the ore is most densely distributed. Lightning contains terrifying power of heaven and earth, and can even cause the decomposition and ionization of ores. Under the day-to-day lightning strikes, some ores have gradually undergone incredible changes. Condensed into a pearl of red gold, wrapped in a layer of turquoise hard shell, it is the Falling Thunder Gold.

Luolei Jin is a medicine for refining Lu Wu Shenlun Dan, and when it is taken, the hard shell can be peeled off and the gold beads can be taken away, but it needs to be sealed with special magical power. Otherwise, once the hard shell is peeled off, a flash of lightning flies away, and its alchemy effect will be lost. Luo Lei Jin itself is not directly used in medicine, but it slowly releases the mysterious essence that condenses the power of heaven and earth in the Dan furnace, which is the last step to help Lu Wu Shenlun Dan condense successfully.

After Lu Wu Shenlun Dan was refined, those gold beads remained in the Dan furnace and became a kind of medicine residue. As for adding the Falling Thunder Gold Alchemy, the specific usage and dosage should be adjusted at any time according to the heat, and there is no certain rule, and Cheng Tianle does not know how much to take, so the more the better.

On the way here, Zi Hao and Sheng Long had already practiced, Sheng Long found a crack under the gravel slope and drilled into it, and Zi Hao also disappeared and followed. The places where Luolei Jin is distributed are generally under large rock formations with high metal content, and many places need to be penetrated by Zi Hao first, and then let Sheng Long try to drill through and take it.

The first time was very successful, and after about ten minutes, a gust of wind flew out of the ground with a piece of turquoise blue pebbles the size of an egg and threw it directly into Cheng Tianle's arms. Usually the natural stone in the shape of a goose is washed and collided by the water flow, but this stone is different, it looks as if it is condensed after melting, and the process of smelting is more than once, there are many black-brown patterns on the surface, like malachite and turquoise, a little polishing and processing is a very beautiful handicraft.

Cheng Tianle took the pebble and frowned and asked Zi Hao, "What about Sheng Long?" ”

Zi Hao: "It's still a cat underneath, it's too troublesome to go back and forth, I'll send what I found first." ”

Cheng Tianle solemnly reminded: "This place is strange and dangerous, you must advance and retreat together, keep each other within the reach of the spell, don't be too troublesome." ”

Zi Hao agreed and floated into the ground again, Cheng Tianle took the pebble and studied it, and then used the method of imperial objects to throw it into the air and freeze it, and sent out an electric wire with a flick of his fingers. The beautiful turquoise shell shattered to the ground, and a red-gold orb about the size of a pecan appeared in the air.

As soon as the orb was exposed to the air, the brilliance seemed to turn into lightning and fly away, but Cheng Tianle's electric wire wound to form a kind of seal to imprison it, and then withdrew it in his hand and checked it. A piece the size of a hickory is quite heavy, and its density should be much greater than that of pure copper, and only slightly lighter than gold, and I don't know how it was formed.

Cheng Tianle smiled, secretly wondering how much Lei Jin he could bring back this time? His backpack was large and sturdy, except for a suit of clothes and a bag of air-dried beef, and the rest of the room was ready to be carried on Regkin's back. But he didn't expect the weight of Luo Lei Jin to be so heavy, if the backpack was full, I am afraid it would have to be thousands of catties, whether he could carry it on his back was one thing, and the bag would definitely not be able to bear it.

And even if he could carry it all on his back, the road would become very dangerous, and stepping on ice or weathered rocks with such a heavy weight on his back might not be able to withstand it somewhere, causing it to break and collapse. If you don't know the magic and the law of imperial objects, it would be impossible to walk through the desolate plateau on the roof of the world, and it is definitely too risky to walk so far with such a heavy thing on your back.

What to do? It seems that there must be a trade-off, peel off all the gold beads, and collect almost enough, otherwise the shoulder straps of the backpack will be pulled off and the bottom will be leaked. Since the process of taking the first falling thunder gold is very smooth, Cheng Tianle is still there at the moment, thinking how much he can carry back? His plan was more than 200 catties.

However, although the thunder gold is heavy, it is only the size of a hickory, and according to the weight, two hundred catties means more than three thousand. From noon to afternoon, Sheng Long and Zi Hao changed several places, looking for a rock formation with a high metal content, and mined a total of more than 40 pieces of falling thunder gold, which was already unsustainable.

Cheng Tianle sighed secretly, although the talent of the golden thread rat is amazing, and although the invisible spirit body like Zi Hao is wonderful, after all, the cultivation skill is still limited. Sheng Long claimed that he could hold on a little longer, but Cheng Tianle insisted that they come back to rest, because he keenly sensed the approaching danger. Clouds began to gather overhead, a drizzle of rain began to fall, and thunder was getting closer.

In fact, the thunder in the depths of the valley has not stopped, and when Cheng Tianle first came in, the thunder became more and more sparse, but after noon, it gradually became dense. The flag clouds hovering on the top of the snowy peak gradually gathered, surging over the entire valley, and thunder pierced through the clouds and cut through the cliffs and the ground, and several thunderclaps could be heard almost every minute. If you don't have enough concentration, you won't be able to maintain peace of mind in this environment.

No matter how high the cultivation is, it can't directly compete with the thunderbolt that fell from the sky, and Cheng Tianle hurriedly wanted to find a place to hide. However, the speed of the clouds was so fast that it was too late to hide in the distance, so he found a low-lying place nearby, and used his mana to dig a bunker-like hemispherical shallow niche under the gravel slope as a temporary lightning shelter.

The weather on the plateau changes incredibly quickly, and the vegetation in the vicinity is so low that Cheng Tianle is still a striking protrusion despite standing in the low-lying area. His bunker had not yet been fully dug and the charged clouds had reached the sky when a bolt of lightning slashed down at him.

Even if Cheng Tianle is a human body and a demon pill is a great achievement, and he has taken three Lu Wu Shenlun Dan condensation corpses, he is still vulnerable in the face of this lightning, and if he is really directly hit, I am afraid that it will turn into a piece of coke. But he had already prepared, the flying electrodelite had turned into a halo covering his body, and the electric essence that pierced the flying electrogenous stone turned into countless electric wires, weaving into a fence that not only shrouded him but also went deep into the ground.

The end of the lightning also turned into countless filaments, and along the direction of these wires, it bypassed Cheng Tianle and slashed into the ground. Cheng Tianle's face was pale, and he almost couldn't control it. The flying stone only blocked such a blow, and it only guided the direction of the lightning by the trend, and it was split into a prototype and fell from the sky. Cheng Tianle took advantage of the situation and planted himself and hid in the bunker that had just been dug.