Sally El spent a month in the Kingdom of Gary, during which time Erlange prepared some ingredients for her to strengthen her body every day. After confirming www.biquge.info Sally El's body had recovered, Lin Su sent her back to the Shilin Temple branch with a flying saucer shell.

"Lin Su, can we meet again in the future?" Sally El tried to make a casual appearance.

"Don't you have my phone, you can call me at any time if you have something. Lin Su smiled.

"Oh. Sally El was silent for a moment, "When I open my own restaurant, I will definitely invite you to come and have a big meal for free." ”

"That's it. Lin Su waved goodbye to Sally Elle, and returned to the UFO shell alone.

He knew that Sarielle, who had come back from the dead, had some special feelings for him, but he was about to enter the food world to practice, and his life and death were uncertain, so there was no way to distract him.

Rubbing his face vigorously, Lin Su began to think about where he would go to practice next.

The extremely cold Ice Continent, the blazing Wulu Volcano, the strong wind, the low oxygen sky vines, Lin Su has already been to these places, and he has adapted to the environment there.

"After all the calculations, it seems that only the highly toxic area and the hypergravity environment have not been seen. Lin Su said with his fingers crossed.

Lin Su didn't have the anti-poison physique of the Future Four Heavenly Kings Coco, and it was really troublesome to deal with toxins, besides, the toxins in the human world were very different from those in the food world, and there was almost nothing in the human world where he could exercise himself.

However, there is a circle of dead ocean currents "poisonous tides" flowing in the sea area on the boundary between the human world and the food world, and the poison of the poisonous tide can prevent the fierce beasts of the food world from entering the human world through the ocean, and its toxicity can be imagined. Lin Su was not arrogant enough to use the poison tide to test his ability to resist poison, which was an act that was even worse than directly swallowing the poisoned puffer whale.

"There's only a hypergravity environment to choose from. Lin Su frowned.

Similar to the highly toxic environment, the hypergravity environment of the human world is also very rare, and it is very difficult to find a suitable place to practice.

However, unlike poison, super gravity is an environment that Lin Su must adapt to, and there are many places in the food world that have strange gravity environments, and if they can't adapt to it, they will inevitably be very passive once they enter such a place.

took out the map given by Acacia, and Lin Su searched carefully on it.

The Snake Cave, also known as the "Bottomless Abyss", is the deepest and unfathomable underground cave in the human world. Lin Su noticed such a location.

The closer you get to the center of the earth, the greater the gravity, and such a cave is most likely the hypergravity environment that Lin Su is looking for.

After checking the introduction of the snake den on the Internet, Lin Su found that the content about the snake den was pitiful. There are many fierce beasts living near the snake cave, and the average capture level of the fierce beasts inside the cave has reached 50, which is one of the few dangerous areas in the human world.

Lin Su didn't care about the threat of the beast, he cared about the depth of the snake's den.

According to laser ranging, the vertical depth of the snake's den is more than 10,000 meters, and the deeper depth is undetectable. Based on this calculation, the gravity in the depths of the snake's den can reach about five times that of the earth's surface, which is enough for Lin Su to practice.

The hypergravity environment is an extremely dangerous place, and the strong gravity not only acts on the muscles and bones, but also affects the internal organs and blood flow of the person, and the slightest carelessness can kill a person.

In order to deal with the dangers that may be encountered in the snake's den, Lin Su made full preparations in advance.

When Lin Su was about to leave for the snake's den, he gave the wolf eagle to Dreiser. After months of training, the wolf eagle had been completely tamed by Lin Su, and he could make the wolf eagle obey Dreiser's orders.

There is only so much that Lin Su can do for the Kingdom of Gary, hoping that this wolf eagle can help Dreiser solve the threat of biological weapons in the kingdom.

……

Leaving the Kingdom of Gary, Lin Su took a flying saucer shell to the sky above the snake's den. Looking down from the air, you can see a huge crack in the ground, like a giant snake swimming on the ground, hence the name of the snake's den.

Looking into the crack, you can see that this unfathomable crack is not completely separated, and there are some stone beams in the middle of the crack that connect the cliffs on both sides.

"It's really bottomless, I don't know if the strong flashlight I prepared can hold on. Lin Su came to the edge of the snake cave and looked down, this kind of cave leading to the dark underground is easy to cause psychological pressure to people, and some people will suffer from cave phobia because of it.

The walls on both sides of the snake cave were so steep that there was no way to climb them, and Lin Su could only jump back and forth between the stone beams if he wanted to go down.

After descending two hundred meters, Lin Su turned on the strong flashlight on his helmet, but the distance that the strong light flashlight could illuminate in such an environment was also limited.

I felt the air around me, although it was a little damp, there was no disgusting smell, and there was no pungent smell such as sulfur, "There are no toxins in the air, which is good news." ”

Despite this, Lin Su was still not careless, the deeper he went into the cave, the more closed the environment became, and the worse the air flow, which could easily lead to the deposition of toxic gases.

After descending to a depth of about a thousand meters, Lin Su could already feel the change in gravity, and the blood was piling up in his legs little by little.

Lin Su didn't find any creatures in the distance from the entrance of the cave to the ground for a thousand meters, which made him very strange. It's common knowledge that the closer you get to the entrance of the cave, the more creatures there are, but the Snake Den clearly doesn't intend to follow this rule.

"According to the data, the average capture level of the snake ** part is 50, and there must be fierce beasts here. Since it's not at the mouth of the cave, it's definitely deeper. But it's dark there, what do they eat?"

With such a question, Lin Su continued to explore downward. When descending five thousand meters underground, Lin Su was in trouble.

Because of the food and non-food, Lin Su's weight reached about a ton, and under normal circumstances, his jumping from one stone beam to another would cause a great impact, and when the gravity increased, this impact became even stronger.

The criss-crossing stone beams of the snake ** could no longer withstand the impact of Lin Su's weight, and when he jumped onto a stone beam from above just now, there was a click, and the stone beam was directly broken.

If it weren't for Lin Su's timely deployment of ice wings, he might have directly turned into a free fall and fell to the bottom of the cave.

Bang bang bang...... A series of crashing sounds reached Lin Su's ears through the rebound of the wall, and the broken stone beam turned into an incredibly powerful cannonball under the action of gravity, breaking everything it encountered in the process of falling.

Observe a moment of silence for the creatures that may exist at the bottom of the cave, and if you are smashed by a falling stone beam, it will surely turn into a puddle of meatloaf.

At the same time, Lin Su also raised his vigilance in his heart, and he cautiously glanced at the top of his head, hoping that he would not encounter the same trouble.