The magic bombing lasted for a while, and when the deep pit reached 30 meters, it was completely impossible to continue. I had no choice but to dig it manually, so Li Feng could only accept reality.

Just treat it as exercise, and you can only comfort yourself in this way.

The excavation lasted for three days. Every day when Li Feng woke up, he kept plucking the bricks and tiles on the ground, and then transporting them out. He was like an excavation machine, completing an incredible amount of work with one manpower.

I also thought about asking others to help, but after thinking about it, I took the initiative to give up this idea.

All of them are relatively weak reasons. For example, if the team members are attacked here and cannot protect them well, wouldn’t they fail? Also, if the team members know that they are so stupid and lose their majesty, and if they once said that they would complete other tasks by themselves, they would still want to get back the force they pretended to be back, and people should not be embarrassed.

In the face of various reasons and the reason why the distance was indeed long, Li Feng dug down more than 100 meters alone.

When he saw the fragments of the energy crystal, Li Feng knew that he was finally not far from his destination. After two hours of exploration, he found the first key. After more than an hour again, he found the second key.

He held two keys in his trembling hands, and almost burst into tears for the hard-earned ones.

Put it carefully on your chest and return to the ground.

"Fortunately, the five plague lords have all been solved, especially the eagle who plays with gas toxins. If it is not solved, the delayed three days may have turned the environment from simple to difficult."

Thinking of the environment that has become more serious before, Li Feng is still a little scared. This is because he made a wrong decision, which almost made the game difficult increase dramatically. Fortunately, he was able to operate properly in the early stage, so he could avoid making big mistakes by himself.

It should be a normal and correct process for using hypnotic gas at that time, but the subsequent process should be to just kill it directly in it after being dizzy. There is no need to have such a big battle. I still wanted to have fun at that time, and in order to ensure 100% of the time, I narrowed the road and ended up with the consequences of digging for more than three days.

Anyway, I have at least returned to the regularity now. It’s still a while before dark, and I’m physically exhausted but I’m completely mentally fine. I can explore it a little bit.

So before teleporting to the gate again, he took a short twenty minutes of rest and restored his physical strength.

Then he nervously put the two keys into the groove. With the sound of clicking, the last two keys were finally completely embedded.

Take a step back immediately and look at the door cautiously. If the monster suddenly rushes out of this time, it will not be unexpected. An excellent adventurer should always be vigilant. Although Li Feng is a little tired, he has never relaxed his spirit for a moment.

The five keys on the door shone with light, and then a rumbling sound came, and the door finally opened.

It was pitch black inside and could not see the specific situation clearly. Apply a night vision technique to yourself and summon the wand to move forward gently.

As soon as I entered, I saw a relatively spacious room, which should be the living room here, and maybe the bedroom here. There are sofas and beds. Except for the many toxin accidents on it, the others all look like a normal room.

Normal people!!!

Li Feng suddenly discovered something. At first, he always thought that he had provoked a ferocious beast, and the ferocious beast planned something to destroy everything. But now it seems that all the signs indicate that the mastermind behind the scenes may be a human.

Not only what you see, but also think about other places carefully. Flower pots and glass bottles are all from human hands. Defensive facilities such as gates are also human habits. No animal cave has ever been equipped with gates.

Looking at all the layout in front of you, it means that there is a human living here.

Gudong, Li Feng swallowed a mouthful of saliva and began to feel nervous. Behind the scenes is human, so what kind of monster is behind the scenes is an opponent of completely different levels.

Although most people may be more afraid of monsters, Li Feng is completely the opposite. It is just because of one thing, that is, human wisdom is very terrifying.

If the monster behind all this is a monster, then the monster is just using its own abilities to continuously develop various new toxins. But if it is a human, a human who can continuously improve and improve toxins and even survive, is definitely an extremely smart person.

It would be very terrible to be a rival to such a person.

Suddenly, Li Feng seemed to have thought of something again. He seemed to have forgotten a very important thing, but he couldn't remember it.

With a nervous heart, I continued to explore this hidden room. After leaving the hall and bedroom, I came to a corridor. There were six forks extending from the corridor and leading to the side.

Walk towards the first fork and look to the right, there is a room. Then walk towards the second, there is still a room. After looking at it all, it turns out that the corridor looks like the fork and it is completely a room created separately.

These six rooms are the entire layout of the hidden cave.

Li Feng's uneasiness became deeper and deeper, and he always felt that he had missed something common sense. This thing was around his mind, but he couldn't remember it for a while. The more he did this, the more he felt uneasy it made him feel.

The first room was full of books, and they were also covered with toxins. Li Feng brought gloves and read a few books casually. There were books recording various toxins. Some were extracted from animals, plants, and various human diseases, etc.

The second room is a few biological reports, which surprised Li Feng a little. The contents can be said to be quite advanced and can be called the aspect of modern medicine. These books are relatively dilapidated, and according to understanding, they can only be brought from the original civilization before their great migration.

The third room is a variety of bottles and jars. Li Feng dared not touch them at will. He could feel that many bottles and jars were highly poisonous.

The fourth room is the same as the third room, and it stores various toxins developed by the person or uses to preserve samples.

The same is true in the fifth room, but the containers used here look stronger. The two rooms in the front may store samples with relatively large quantities and are ready to be used for synthesis. Here are the real finished products.

The sixth room is similar to what I expected, with a large number of experimental instruments and a relatively simple microscope placed on the table. This is where this person usually works, so you can't make a mistake.

I dare not touch the rooms in the front at will, so I can still check it here slightly.

Soon Li Feng saw a piece of paper next to the microscope with something written on it. He picked up the paper and took a look, and then his face suddenly changed.
Chapter completed!