Although the White Lotus Sect that was entrenched here was almost wiped out after its defeat, this branch in the depths of the Qinling Mountains remained for a long time, and even the gunpowder factory that refined nitrate continued to work until the entire White Lotus Sect collapsed.

As a result, a large amount of gunpowder was stored here that had not yet had time to be delivered to the front line.

And all that gunpowder is now stacked in front of Li Heng.

That's the last thing the predecessor had to do.

Without the mysterious [Pressing Dragon Sword], the "Poisonous Dragon Turning Over" is already unstoppable, once this huge amount of sedimentary poisonous gas pours out, not to mention this underground space, the Qinling Mountains on the ground above will inevitably be shrouded in poisonous mist!

At that time, the villages, small villages and even mountain and forest roads within a radius of many miles will be trapped by the "poisonous dragon", and countless lives will be tragically killed, and the casualties are unimaginable.

Therefore, he had no choice but to use a large amount of gunpowder to blow up the rock wall where the cliff was located, and then cause the collapse of the underground cavity to block the crack and "suppress the poisonous dragon" again.

I have to say that this is an extremely bold idea, and it is also his last fight to die.

However, it is also an idea that cannot be successful.

Although he failed to complete the last step until his life was exhausted, leaving a hundred years of regret, but judging from the results, maybe it is good?

All the gunpowder piled up here was wrapped in dry cloth and stacked into powder packets the size of Chinese medicine packets, stacked on top of each other beside the rock wall, like a small mountain.

It is conservatively estimated that the total weight is likely to be several thousand catties, and I don't know how long he has been alone in this underground to complete this huge workload.

Although this amount sounds huge, as if invincible can blow everything up, maybe the predecessors of the year thought the same thing.

However, the reality is cruel, first of all, these gunpowders are made with a very traditional folk nitrate refining method, which is a slightly higher black powder, because when Li Heng was in the gunpowder factory before, he had seen some mildewed cotton floc.

This shows that the White Lotus Sect members at that time already knew that adding a small amount of cotton wool fiber could enhance the combustion efficiency of gunpowder.

However, its explosive power is still far inferior to that of smokeless gunpowder, let alone modern high-explosives.

Without detonators and blasting explosives, even if thousands of pounds of gunpowder are detonated together, it is difficult to shake the solid rock walls.

The debris and rubble that were shattered by the explosive force were unlikely to fill the thousand-meter-long crack.

And at this moment, Li Heng clearly heard the sound of "dragon's breath" not far away, which was the sound of gas gradually expanding in pressure imbalance, This narrow ground crack is the place where it was "born of a dragon"!

Li Heng noticed that something was wrong in this burst of sounds.

"The time interval is shorter and the decibel frequency is higher, which proves that the pressure is getting higher every time the gas is compressed and then released...... Probably not."

This time, even he felt surprised and uncomfortable.

It should be just an accident that I entered this place, although this "poisonous dragon" has long been out of control, but it has lasted at least eighty or ninety years, it can't be so coincidental that it will break out at this time, right?

Li Heng was a little speechless and helpless, but even with the surging fog tide below and the slight change in the air current, Li Heng could sense that the air pressure was gradually breaking the original balance.

Could it be that there was some kind of subtle disturbance after I came in, which exacerbated this imbalance?

Li Heng had to think like this, guessing that he was the butterfly that flapped its wings and lifted the shackles of the "dragon".

Until he heard another sound, a faint sound mixed with the friction of the air flow - tick, tick......

It's the sound of running water......

It wasn't the first time he'd heard it, and he had heard it faintly from the altar not long ago.

Where does this sound come from?

Wait a minute!

Li Heng's eyes widened, and he suddenly looked up, where was the top of the underground cavity and the layers of thick rock walls, but Li Heng's gaze was not rock.

His gaze seemed to penetrate the rock wall and the thick stratum here, all the way to the ground and to the sky!

He remembered the story the old man had told him again, and of course it was no longer a story but a fact.

What was the beginning of it all?

It was caused by another torrential rainstorm in a reservoir that had fallen into disrepair decades ago, and that flood was followed by a rat infestation.

At that time, the simplest and most direct understanding of people was that the water hit the rat nest in the mountain and forced the rat colony out.

This is not the case, and the rat colonies deep in the ground are not yet to be hit by the so-called floods on the surface and have nowhere to go.

But heavy rainstorms and floods can cause the flow of the underground water system to be overloaded, and then the excess water will seep down the ground, and the water will flow downward, where is the lowest?

It is the crack in the ground, where the "poisonous dragon" is located!

Once water flows into the underground cavity filled with geothermal heat, it will immediately evaporate into water vapor and mix into this huge gas mass, which will increase the body of the "poisonous dragon" and further disturb the air pressure balance.

At this time, Li Heng's mind sounded Chen Zhouhe's words-

"I see that the weather forecast says that the weather will change in the next few days, there will be heavy rain, you hurry down the mountain and come to my house to take shelter......"

If nothing else, at this moment, it is raining heavily!

Because of his long stay below the ground, not only did he have no idea about the climate change on the surface, but the dark and deep environment also made his perception of the passage of time blurred.

In fact, he had been exploring underground for nearly two days, and during this time, the amount of heavy rain and precipitation had probably exceeded the carrying capacity of mountain streams and underground water systems, and penetrated into this layer.

At this moment, above his head, a cacophony was heard again, it was the movement of the rats.

Even they seem to sense that something is wrong.

Yes, they are the aborigines of this area, and it is natural for them to perceive environmental changes at the first time.

Can't delay any longer, you have to leave here immediately, once the "poisonous dragon turns over", these harmful gases will quickly erupt and fill the entire underground cavity, even if Li Heng can hold his breath for a long time, but without protection, it is difficult for him to be sure that he can hold out to the surface.

It's still too late to go, and it's easy to get out of here with the speed of his current strength.

Li Heng turned around and walked towards the hanging ladder, preparing to climb the rock wall to return to it.

As he passed the dried corpse, his footsteps slowed suddenly, and after three steps he stopped.

"!"

He scolded angrily and walked back with a straight face.

Isn't it just that the poisonous dragon turned over and the poisonous gas is overflowing, isn't it just that the lives within a radius of dozens of miles are ruined, isn't it the violent destruction of the ecological environment, isn't it just thousands of lives, isn't it just ......

Thousands of fucking lives!

The condensed breath in Li Heng's chest was suppressed.

It doesn't matter if he is a saint, or if he is gentle, but he just can't let go, and he can't see everything alone.

He also knew that there was really no benefit in doing so, this was the real world, not a mythical world, and even if he did any good deeds, there would be no merit at all, and no one would know about it at all.

The world doesn't even know that it happened.

But didn't he do the same?

Li Heng's gaze fell on the face that was frozen with regret and urgency.

(End of chapter)