Prick the three explosive cloth bags located in the upper, middle and lower parts of the pile respectively, and take out a small amount of powder from them.

Making fire is now a piece of cake for Li Heng. He can randomly select two rocks with a slightly hard texture and rub them quickly with his superhuman strength and speed. The friction surface will soon rise to a temperature of more than two hundred degrees.

Then touch the gunpowder powder with a high-temperature stone surface.

Chi, chi, chi—

"Well, the gunpowder in the three gunpowder bags has not expired. It can be basically concluded that most of the gunpowder here is usable."

It seems that the environment here is indeed very suitable for preserving such flammable and explosive substances, and the earthen gunpowder has not expired after so long.

And this is also the premise of everything.

Li Heng previously judged that this method of explosive accumulation would be impossible to blow up the rock wall and form a collapse that could bury the gas cracks. This was because the explosive force of several kilograms of gunpowder was far from enough to shake the rock structure here.

After all, our ancestors who lived in the Republic of China must have limited knowledge about blasting and explosives, and mistakenly believed that detonating a pile of gunpowder together was the strongest and most powerful way to explode.

However, the reality is just the opposite. A large number of explosives are piled together. Unless there is a very scientific, accurate and high-speed distributed detonation method, a large number of explosives will be blown away by the gas that exploded first, resulting in a significant reduction in overall power.

The nearly vertical slope of this passage was a dead end for most humans, but Li Heng used his hands and feet to climb up as nimbly as a gecko.

It started. The loud noise of the explosion made Li Heng slow down slightly. He couldn't help but look back. He saw flames rising into the sky, thick smoke billowing, and a total of more than ten thunders blooming at the bottom of the cliff. The sound was terrifying and earth-shattering.

In this process, the crustal rock layers themselves also bear huge pressure, which is so great that it changes the properties of the rocks, and some of the crustal rock layers act like springs, accumulating a large amount of crustal kinetic energy.

"Are you just letting fate happen again..."

The rats that had been frightened by the Poisonous Dragon's turning over had already ignored his characteristics of being soaked in Ksitigarbha essence. However, at this time, Li Heng was like a divine sword that split waves and split the sea. He rushed through at a speed comparable to that of a train.

All the rats blocking him were shattered in an instant, turning into pieces of flesh and blood.

Boom!! Boom!! Boom!!

There was a violent explosion, and a series of thunder shook the ground, which could almost pierce a person's eardrum in this semi-enclosed cavity.

Cha——

The length and distribution of the fuse must also be carefully calculated to ensure that the timing of detonation is basically the same and that the explosive force can reach the maximum in a short period of time. This requires careful calculation of the burning speed of the gunpowder fuse and the stress on different rock layers.

state.

But before he could think about it, the tiny gravels at his feet suddenly began to shake, and the vibrations became stronger and stronger. This clear vibration hit Li Heng's heart along his feet and legs!

Surveying rock formations, digging and burying points, distributing explosives, arranging leads... Li Heng is an engineering team by himself!

But why does Li Heng continue to do this useless work?

After all, these explosives are just fuses, used to detonate another huge energy hidden in the ground.

A large number of calculations, calculations and screen simulations were flashing in his mind. While the work at hand did not stop, the complex calculations in his mind were also going on in full swing.

"A poisonous dragon turns over and brings disaster to the sky." This saying is no joke. The Qinling Mountains above are no less than washed by volcanic ash.

After the loud noise passed, the huge sound wave contrast made the entire underground cavity seem peaceful, and the silence was so mind-numbing.

Not only that, the noise behind him was like a pressure cooker boiling. It was getting louder and louder. Even under the imbalance of air pressure, the original gases hidden deep in the ground began to leak into the air here.

A ray of fire lit up, the fuse began to burn, and the zigzag gunpowder route began to advance a little bit.

Li Heng gave a sharp shout and all the energy in his body was released, shaking away the group of rats that were rushing towards him like crazy.

It’s not the horrific scene of earth fissures and landslides when the underground cavity collapses, nor is it the tragic scene of the rats that have developed to “agricultural civilization” being completely destroyed in the collapse, but the stone slope, the semicircular stone slope where the Jizo Jingchi is located.

.

When he climbed to the top of the cave that was about to collapse, Li Heng turned back briefly and took one last look at this underground space. Soon everything here will be buried and disappear, and tens of millions of tons of earth and rock will completely overturn this section.

Hidden history.

Cracking sounds came from all directions under our feet, like the skin and flesh of the earth tearing apart, like the bones of mountains and rivers shattering, countless falling rocks roaring down, like thousands of thunders rioting underground, trying to overthrow this land.

The earth reshapes this space!

The chain reaction of this collapse was faster than Li Heng expected.

Waves of extremely pungent and strong shocks came, and even Li Heng couldn't help but frown and squint.

In this way, Li Heng built a dozen rock pits that could be filled with explosives, and then distributed them one by one to fill the explosive packets. He also disassembled some of the powder packets and used the scattered powder as leads.

However, even if it is just this, just a few thousand kilograms of explosives may not be able to tear open that small hole.

In addition, blasting rock formations is not simply determined by the power of explosives, but involves complex structural mechanics and pressure-bearing principles.

Boom boom boom boom——!!!

The movement this time was much more violent than the dozen or so explosions just now. This time it was the effect of the real power of nature being released, and it was a world-changing energy.

"Get away!"

For a moment, Li Heng was so excited that he wanted to laugh.

It's just that this change requires him to move faster, otherwise when the airflow completely surges up, the fuse he laid with gunpowder powder may be washed away or fail.

After all, he was actually betting on an unlikely possibility.

But Li Heng didn't care, and after a few seconds, he left without looking back.

Li Heng is not an expert in this field, but with his increasingly powerful brain power, he has read a lot of relevant information and knows some tricks.

But this still doesn't work. He needs to break the surface of the rock formation first, dig out a deep pit, and then fill it with explosives to shake and tear the stone wall from the inside.

It is a spring that is in a super-tightened state. What happens when you make a small cut in a rubber band or spring that is stretched to the limit?

Li Heng's bet was that these explosive blasts could tear open such a small hole, triggering a chain of formation pressure releases, and eventually tearing and shattering the entire underground cavity structure.

Plop——

It can be said that the situation has suddenly taken a turn for the worse!

He jumped directly into the Ksitigarbha Essence Pool and washed himself with the pure white lotion to wash away the dirt all over his body.

Li Heng immediately tried his best to escape to the top of the cliff. He wanted to escape before the fuse burned out.

The rock formation where this underground cavity is located is also formed by the movement of the Qinling crustal plate. It is essentially a fault cliff structure, and this crustal movement continues day after day, year after year, squeezing the formation bit by bit, constantly

This caused the Qinling Mountains to rise and rise.

It doesn't matter, it's all one-time anyway, and this is their last job.

Bang!

Bang!

Bang!

With the help of some leftover iron tools, Li Heng swung his sword and struck the rock wall with thousands of kilograms of force every time he struck it!

Sparks and gravel burst out like small explosions. Basically, these ancient non-stainless steel tools would be scrapped after only two or three hits in his hands.

He began to disperse the thousands of kilograms of gunpowder piled up, and arranged them according to the guidance of the relevant knowledge in his mind. He followed the texture of the stone walls and rock formations to find weak and fragile points, as well as stress-bearing points.

In fact, this is how most earthquakes occur.

At this moment, his body was covered in stench and blood, and he was horrifying, like an evil ghost killed from the hell of the animal realm.

These gases would damage his eyes. Even with his physique, he felt threatened by these gaseous compounds. You can imagine what it would be like for ordinary creatures once it all pours out and spreads.

If the world feels that these creatures from all directions still have a destiny, then it can succeed. If the world is unkind and indifferent, then there is nothing Li Heng can do.

However, it was this last glance that made Li Heng see another sight that shocked his mind.

In this way, this treasure condensed from the essence of the earth after countless years became the bath plate for him to wash his body. The originally pure and white Ksitigarbha essence was now contaminated by blood, becoming unclean and smelly.

His superhuman speed made him fly as if he was touching the ground.

Because it is still too weak, the explosive power of this explosive is still too weak.

Seeing this situation, Li Heng's heart sank slightly. Could it be that he still couldn't be shaken?

Li Heng thought and reacted quickly, still thinking calmly while running rapidly.

Of course he has no tools in this case.

Generally, this kind of project requires machinery, and an impact drill and electric hammer must be used to break the shell first.

But Li Heng's movements were still steady and steady, and his strong mental strength allowed him to remain calm even when Mount Tai collapsed in front of him.

In addition to the tunnel found from the White Lotus Sect, there should be other routes to the surface, because the senior once entered from an underground fortification.

Then after the collapse, the huge amount of earth and stone can directly fill the large crack thousands of meters long under the action of gravity!

Then the most important thing to do now is to shut up and run away.

But even so, he was still not sure.

In just a few hours, an unimaginable amount of work was completed.

Amidst the exploding debris and falling rocks, Li Heng also saw the hidden road, right above the sloping rock formation ahead.

After the tools were scrapped, Li Heng used a natural hard rock as an "impact hammer". With the force of a thousand catty arm, he pushed the boulder weighing several hundred kilograms like a cannonball, smashing into the fragile stone wall and creating holes and holes.

But, he himself is the best violent machine!

The turbid water there seeps through the cracks in the rocks and flows slowly. This is a trace of the underground water system. You can escape from this place as long as you follow the flow in the opposite direction!
To be continued...