The sound of boiling came from afar.

Jiang Lianshan tried to focus on the direction from which the sound came.

However, the zombie's perception range is really limited.

Even if I stretch my perception to the limit, I still can't see anything.

Zombie perception has advantages and disadvantages.

It is penetrable and does not rely on light.

The only thing is - the scope is too small.

Jiang Lianshan put on the zombie shell and moved forward.

Finally, he "saw" what he wanted to see.

A simple, clay-fired cauldron filled with liquid is placed on a pit of suitable size.

The pit seemed to have its own heat.

Because the liquid in the cauldron was boiling happily.

In addition, Jiang Lianshan also "saw" several vague mists busy around these cauldrons.

At first glance, Jiang Lianshan thought he was in the eighteenth level of hell.

These boiling oil pans are used to fry evil spirits.

Those strange fog masses were all busy with their own business, and no one paid any attention to Jiang Lianshan. Jiang Lianshan just moved forward, passing through these strange and strange things.

Further forward...

Jiang Lianshan "saw" a pile of mist smashing stones and filling them into the pot.

I also "saw" that some mist took water from the underground river and poured it into the pot.

besides……

Some mist lifted up the iron pot and poured the debris into the roots of the thick vines.

At the same time, the vines will beat violently and the round roots will become "fat" in a circle.

as if……

On that stem, something is gestating.

"What the hell are these?!"

Jiang Lianshan stood quietly, looking at the clouds of fog and thinking.

——Why are there clouds of fog ahead?

——What blocks the zombie’s perception?

--still……

——It is impossible to perceive accurately at all, because those things... have no entity?!

No entity!

Jiang Lianshan suddenly woke up!

Wrong soul?!

At this moment, another pot of strange powder was poured into the roots of the fat vine.

The root system swelled to the extreme, twitching...

"puff!"

A seed was spat out.

"Chirp chirp chirp chirp..."

A vine bat descended from the sky, picked up the seeds, and flew into the distance.

…

Outside the live broadcast room, the audience was stunned.

"What the hell?"

"Help! The San value is going crazy! I'm going crazy!"

…

No wonder the audience was crying and howling on the barrage.

On the screen, the scenes that appeared were extremely abrupt due to the lack of foreshadowing and only appeared when the focus was on, leaving people completely unprepared!

Plus, this weird cauldron, weird plants, weird mist...

"I'm just curious, what is boiling in those big pots? Meng Po soup? Human bones?"

Bell frowned and raised his head, confused.

"Maybe they are refining saltpeter," Bingbing said.

"This refining method is quite crude. Taking advantage of the properties of saltpeter being soluble in water, the mined saltpeter is ground and boiled in a large pot, and then the impurities are filtered out and waited for condensation."

"After condensation, the nitrate will precipitate."

Bingbing is a media person with a very high level of professionalism. She is involved in a lot of knowledge on a daily basis.

It just so happened that she had learned about the ancient method of refining saltpeter.

Combined with the news that there is likely to be a saltpeter mine nearby...

Isn’t the answer clear?

After getting the simple answer, Bingbing speculated further.

"I guess what was just born is the seed of the vine!"

"And the vines covering the valley floor also have the answer."

"Obviously, the vines have received help from these mist creatures and are constantly multiplying and growing their race, thus occupying most of the lava mines!"

"It's just that I'm not sure now whether the vines did this out of instinct or for another purpose."

The barrage was amazed by Bingbing's previous speculations, and followed Bingbing's questions to discuss them enthusiastically.

"It should be instinct. What purpose can plants have? Plants don't even have brains!"

"I think the monsters in the fantasy world are all simple."

"I think there must be a purpose. Please! Those mist are refining pure nitrate! How can a non-intelligent creature do such a thing?"

"So... the vine is the big boss of this lava mine?"

…

Jiang Lianshan doesn't care who the boss is or not.

After he figured out what this scene was about, he immediately...

laughed.

What would it look like if so much saltpeter were burned together?

There are also seeds conceived in the roots. Will they not explode when exposed to fire?

Jiang Lianshan had the urge to explode.

Once successful, it will be earth-shattering.

By then, even if this place is in ruins, it won't matter.

Anyway, the wish of the dead miners is to find their comrades and let them rest in peace.

Will the restless undead be blown up or crushed to death? If that were the case, Jiang Lianshan wouldn't have to work twice.

Of course, if you can't let them rest in peace...

When the time comes, it shouldn't take much trouble to let the miner zombies dig through the ruins.

However, it is not easy to do this.

The temperature is very high here.

If the vine seeds were really that easy to explode, they would have exploded long ago!

Perhaps, in order to comfort themselves, the vines have also evolved an external structure with extremely high fire resistance, heat insulation, and air tightness.

Fire-resistant and heat-insulating, the outer tissue of the seeds is not easily damaged.

Good air tightness ensures that seeds with extremely high nitrate content are isolated from the outside world in the roots of the tree.

In this way, no matter how high the temperature is, violent oxidation - combustion cannot occur.

"First, we have to find a way to break the vines."

"Then I need fire."
To be continued...