"But in reality, it's not very aggressive, it's usually secluded in undisturbed corners, and we just chase it away!"

The method used by Chen Xu is very simple, that is, to use fire.

All living beings have the instinct to be afraid of fire, which is determined by genes, and countless ancestors have passed on this instinct in their genes at the cost of their lives, telling them that if they get close to fire, they will die!

So, as soon as the crypt spider came into contact with the fire, it quickly fled back into a nearby rock crevice.

"Master Xu, don't take you to bully spiders like this!"

"Spider: You have to get it, Lao Tzu can't beat you, can't you run?"

"Hahaha, I guess this crypt spider has been thinking, thank you for not eating it!"

Chen Xu didn't pay much attention to the barrage.

After forcing the spider away, he followed closely and shone the fire through the crevices of the surrounding rocks.

"It's collapsing badly, it's full of rubble and cracks, and the snake loves to stay in such crevices, so I have to be careful all the time!"

Chen Xu's words are not a joke.

Although the previous cave was so narrow that you could only enter most of your body, at least you were standing, and your legs and feet were very flexible.

And now, he's on his knees.

If you are not careful, you will encounter a poisonous snake that moves and attacks extremely fast like the island spearhead pit viper, and it is very difficult to use the same method to get out!

It has to be said that this cave system is very well developed.

Five minutes later, he turned into a new cave passage again.

And at this time, a "bang-la-la" sound came faintly from the dark depths.

Chen Xu immediately stopped and listened carefully for a moment, "It seems that there is the sound of flowing water, it is likely to be an underground river!"

The thought of water in front of him immediately made him a lot excited.

Although last night's rainstorm had made him drink to his heart's content, he had been sweating every day for more than a week, and his skin was really uncomfortable.

So, he sped up.

After climbing about fifty meters, the reflection of firelight like a mirror finally began to appear in front of me, which proved that there was water ahead!

When Chen Xu climbed in front of him, a small ditch half a meter wide appeared in the audience's sight.

"Hehe, it's really an underground stream, and it's living water. ”

He grinned and lowered his head, ready to take a small sip to rehydrate.

However, as soon as Chen Xu's face touched the top of the water, and his mouth was about to drink water, he suddenly stopped.

Is there something wrong with the water?

The idea came to the minds of the audience.

He nodded and said solemnly: "Although it is living water, I smell a faint sour and astringent smell in this water, which is a very dangerous signal, when you don't know what is in the water, don't drink it indiscriminately." ”

"The Toei Minamata disease, one of the eight major pollution incidents that caused a sensation in the world, was caused by the fact that residents drank mercury-containing contaminated water, resulting in a variety of diseases and even deaths. ”

"Let's go upstream first, and the water quality in the upper reaches of the river is the best. ”

With that, he continued to crawl upstream, deeper into the cave.

Sure enough.

Twenty minutes later, Chen Xu finally found a few stones in the ditch.

These stones are very special, they are black or tan all over, and some of the pebbles have a texture, and some places even appear crystallized, quartzized, and with a layer of mineral salt-like substance.

Mineral salts?

Entertaining the audience:

"2333, congratulations to Xu Ye for unlocking a new item: Spice Pack!"

"Xu Ye: 2333, with the seasoning package, Ma Ma no longer has to worry about me eating tastelessly!"

"If there is another pot, Xu Ye will be able to stew snake soup!"

Unlike the audience, Chen Xu saw these "mineral salts", but his complexion changed, and he immediately covered his face, and then quickly retreated.

It wasn't until he had retreated about twenty meters that he let go of his hand and gasped for breath and said, "Whew...... It was not a mineral salt at all, but a stone gall, a highly toxic chemical, no wonder there were few creatures in the cave, and the whole stream was also a little sour and astringent. ”

"Because the main component of stone gall is copper salt, which belongs to the bile alum substance, it is easy to integrate into the water, which is extremely damaging to the skin and oral mucosa, and is extremely toxic. ”

"And those stones just now, whether it is texture or smell, are very consistent with the characteristics of stone gall, when encountering this highly toxic substance, you must avoid it as soon as possible, fortunately I didn't drink this water just now, otherwise, I would probably have been poisoned now!"

Oh my god, this thing is just scary!

Many viewers thought that Xu Ye was scaring them, but when they checked the relevant information of the stone gall, it was indeed exactly the same as what he said, and they couldn't help but be a little afraid.

Because this thing looks too similar to mineral salt.

This is equivalent to the poisonous hemlock that Xu Ye said before, if you can't distinguish it clearly, if you eat it casually, it is likely to cause poisoning, or even direct death.

After coming out of the cave, it was already noon.

This is enough to show how complex and huge this cave is.

At the same time, it will also be a signal that there may be more complex caves like this in the future.

Moreover, each of them has the possibility of burying the gold treasures of the Incas.

So, for the next few days, Chen Xu was heading in the direction of due south, searching for any caves he encountered along the way.

In the course of a few days, he was lucky enough to get a magnet, which he had discovered with a metal detector.

The advantage of having a magnet is that he can use this object to make a simple compass.

The method and materials are very simple.

Chen Xu only used the ancient square nail he found, rubbed it repeatedly on the magnet until it was magnetized, and then tied a tiny vine in the middle.

Due to the magnetization, the square nail can be affected by the magnetic field, so as to accurately point to the south.

In this way, he can adjust his orientation at all times, and he does not always have to find empty space to use the sun to observe, which saves a lot of time.

At the same time, he also discovered an interesting thing in the past few days.

That is, the number of so-called "poachers" has increased.

In just two days, he met three groups of people who claimed to be "scientists" or "poachers."

Although they said so, Chen Xu felt from the temperament of these people and the equipment they carried that they were likely to be treasure hunters or even pirates!

In other words, since the location of the Southern Cross was revealed, the vicinity of Brazil, and even in the world's exploration circles, have paid attention to Viper Island.

Viper Island, thirteenth day.

Chen Xu had already searched for at least three kilometers of the cave along due south.

And just as he was passing through a jungle in front of him, suddenly, a scream came from not far away!10