Survival: Starting with a Tiny Treehouse

Chapter 111: The lake bottom abyss

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Xu Xin's crossbow arrows failed to kill the piranha, and it ended up dying in its own fish's mouth.

These piranhas were probably very hungry because they had just mutated. Silver King had just eaten a whole deer right after the mutation and still felt unsatisfied.

This made Xu Xin even more determined to kill them all. After having a meal, the Silver King grew a whole lot bigger the next day. These fish couldn't continue to grow!

The fact that these piranhas were so hungry and attacked their own kind actually made things convenient for Xu Xin. He felt that to kill a large mutant piranha, at least several crossbow arrows would be needed. Although he had picked up a lot of crossbow arrows for free in the underground trap, he still wanted to save them if possible.

Another crossbow arrow was shot out, and the same situation happened again. The other three fish immediately bit the injured and bleeding fish frantically.

In just over ten seconds, only a skeleton was left of the second fish. Even the meat of the previous fish in its stomach had been eaten by the other three fish, leaving nothing.

"It's so easy." Xu Xin was happy. Although it was a pity that he couldn't get the materials of the piranha, he himself didn't dare to enter this range. So he just had to be eaten.

After killing another piranha, Xu Xin fired a crossbow at the remaining two, causing the two injured fish to eat each other. In the end, the two piranhas, whose entire bodies were exposed after being eaten by each other, both fell into the abyss at the bottom of the lake.

At this point, the piranhas in the center of the lake were completely eliminated.

After resolving the thorn in his heart after the beast awakened, Xu Xin felt relaxed both physically and mentally.

Next, he was going to take a look at the huge cave at the bottom of the lake.

He didn't dare to swim directly downwards, but swam back to the shallow water first. After all, the piranhas' activity range was in the center of the lake, directly above the huge abyss. Looking directly down from the center of the lake, the bottomless black abyss was really terrifying. He was always worried that some giant beast would swim up from the abyss with its mouth wide open and eat him in one bite.

When he reached the wall of the cave which suddenly became deeper, he slowly dived down.

Xu Xin has been a diver before. When he went to the southernmost island of China, he experienced diving. A professional diving instructor took him to a depth of about ten meters. Before diving, he also received about half an hour of basic training. In addition, he also read some information and knew the harm of water pressure to the human body.

The water pressure in deep water is very terrible and poses a threat to various organs of the body.

During the dive, Xu Xin began to judge the effect of water pressure on him. When he first experienced diving, his ears started to feel uncomfortable when he dived to a depth of three or four meters, and he needed to equalize the ear pressure. But this time, Xu Xin had to dive about seven or eight meters before he began to feel that.

He used the method he had learned, pinching his nose and blowing it, and his ears felt better.

Xu Xin began to calculate in his mind. When he experienced diving before, he started to feel uncomfortable at a depth of three or four meters, but now, he didn't feel this way until he was about seven or eight meters deep. In other words, the effect of water pressure on him was also weakened by this scale armor set, and the depth he could dive to was more than doubled.

Without diving equipment, the maximum depth that ordinary people can dive is ten meters. Trained professional divers can reach a depth of more than fifteen meters, but that's all. Seventeen or eighteen meters is almost the limit for most professional divers to dive without equipment.

Of course, the world records set by top adventurers are much higher, but a complete layman like him cannot even compare with professional divers, let alone world records.

He was just an ordinary person who had experienced diving. He knew very well that he had no diving experience. Without a suit, even if he could breathe in the water, the depth of ten meters was enough. With a suit, he could try to explore to a depth of about twenty meters.

Twenty meters is not considered diving, the height of a seven-story building is only twenty meters.

He would not go any deeper. Deep water was a very dangerous area, and this huge cave was even more dangerous. Not to mention the monsters that might appear in the water, the water pressure alone could kill him. If he dived too deep, even if he could come out, the consequences would be extremely serious.

He cherishes his life and doesn't want to seek death.

However, the blue-level resources on the cave wall are probably only about twenty meters deep, so he can try to pick them.

After diving about fifteen meters, Xu Xin finally saw the appearance of blue-level resources. They were strips of water plants growing on the wall of the cave. Three dark green water plants were floating with the slowly turning undercurrent in the cave.

It seemed like... He had just eaten blue-level water grass! Unexpectedly, this kind of water grass actually grew on the wall of a cave in the water 20 meters deep.

Slowly swimming downstream, Xu Xin finally arrived at the blue water plants.

That’s right, it was the water grass (blue) that could provide the ability to breathe underwater. It was the water grass (blue) he had bought from Qin Yunlong!

"This aquatic plant probably only grows at this depth. I didn't expect that the Qin Yunlong brothers could dive to a depth of twenty meters. They are indeed professional diving coaches." Xu Xin didn't think that they could have the same purple-level suit as him. They should rely entirely on their own abilities to dive.

…or they have some special underwater abilities.

After picking the water plants on the cave wall and putting them in his backpack, Xu Xin began to move along the cave wall at this depth. There were still some blue-level water plants growing on the cave wall, and he wanted to pick them all, as they were strategic resources.

Swimming along the cave wall, Xu Xin looked deeper into the cave. When he looked directly into the depths of this huge cave, he always felt a creepy feeling. It made him deeply realize that when you stare into the abyss, the abyss is also staring at you.

He always felt that something was staring at him from the depths of the huge cave.

Could it be the giant anaconda, or something else? Maybe it was just his imagination.

Having dived twenty meters, Xu Xin was much closer to those creatures that were much larger than him and were swimming back and forth in the depths of the giant cave. He could already see their general appearance.

It was a fish, three or four meters long, with a very sharp mouth, protruding eyes, and a very flat body, which looked a bit strange. The color of this fish was similar to the surrounding cave walls. If they didn't swim like they were now, but stuck to the cave walls, Xu Xin would probably not be able to find them.

Fortunately, the appearance of the fish was not very strange and did not look like a monster, which made Xu Xin feel relieved.

He could see about four or five of these fish within his field of vision, all in waters less than sixty meters deep, quite far away from him, so he didn't have to worry about them attacking him.

After circling the cave wall, he found a total of eleven water plants within his depth range. In addition to the water plants, he did not find any other blue-level resources.

Although there were still some blue lights in the deeper waters, Xu Xin would not continue to dive. Those resources were basically at a depth of about 30 meters, which was not a depth he could dive to. If he really went to that depth, if something happened, he would probably stay in this abyss forever.

However, at a depth of 60 meters, where those strange fish were active, some stones on the cave wall attracted his attention. The stones protruding from the cave wall emitted green light, and a few emitted blue light.

"Ore?" Xu Xin narrowed his eyes, trying to see the stones clearly.

The color of those stones is different from that of the cave walls. The overall color is green. They are scattered all over the cave walls at a depth of 60 meters, and there are quite a lot of them.

"Green ore, what ore is green? Copper ore?" Xu Xin didn't know much about this, so he was a little confused. Maybe it was a stone that didn't exist in the original world, just like the black gold that Li Wenxi discovered.

The most important thing is that it is impossible for him to dive to such a deep depth at the moment. It is useless to think about it. Even if there is really a copper mine that can be used to manufacture electrical appliances, he cannot get it.

Xu Xin decided to dive a little deeper to see how deep he would feel uncomfortable.

After diving about four or five meters, Xu Xin began to feel obvious discomfort, so he stopped diving and slowly surfaced.

Twenty-five or twenty-six meters deep? Not counting the effect of the scale armor, the depth he can dive to is about twelve or thirteen meters, which is not even the limit for ordinary people, not to mention that he has been strengthened many times and can breathe underwater. If he undergoes special training, Xu Xin feels that he should be able to dive to about forty meters.

It seems that I have to ask the Qin Yunlong brothers for some advice on diving.

There were no other resources around, so Xu Xin also planned to go up. The effect of the aquatic plants he ate was about to wear off, and he needed to return to the surface as soon as possible.

Xu Xin did not swim up quickly. If the water pressure changes too quickly, he could suffer from decompression sickness at best, or even die from a lung explosion. Of course, Xu Xin's depth would not be that serious, but it might still hurt his eardrum, and he did not want to become deaf.

Floating slowly upwards, Xu Xin finally poked his head out of the water and returned to the shallow water. When his feet stepped on solid ground, he breathed a sigh of relief.

Although the underwater world was novel to him, he felt very uncomfortable in the giant cave. The strong water pressure made him dare not go deep or float up quickly. His movements were restricted, as if he was in a huge and deep cage.

Fortunately, this trip was not without gain. At least he had eleven more water plants, which greatly increased the time he could spend underwater. If the rainy season really caused a flood, with this set of scale armor and these water plants, he would be fine even if he was swept into the flood.

Xu Xin dug some lotus roots in the shallow water.

Fish may mutate, but these mature lotus roots should not? The kitchen is ready. I will go back and squeeze some oil from the wild animal meat and make some lotus root fried with meat.

He walked out of the lake and looked back at the lake that seemed beautiful but full of dangers. There were no piranhas wandering in the center of the lake. The lake seemed to have returned to the way it was when he first came to the lake, peaceful and beautiful.