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There is a thunder cave in which the essence value is much higher than that of the outside world, and everyone's strength is improving. Although Gao Feng was unable to get three hundred and six essence values because of his strength. But after entering many times, his strength was finally raised to the third order and tenth layer.

During this period, it was not only Gao Feng who entered the Thunder Cave. The third brother Liu Fu, he also entered the Thunder Cave. His entry card, at the beginning, was obtained outside the Thunder Cave. Gao Feng and before they came here, the third brother Liu Fu had accumulated a few entry cards. After Gao Feng and the others came, the kind of monster that appeared near the thunder cave, the kind of monster that had the opportunity to appear in the thunder cave entry card, Gao Feng and they didn't kill it. Even if you encounter it, you won't kill it. You have to leave something for someone else. What they hit in the thunder cave was enough for them.

The third brother Liu Fu entered the Thunder Cave at the beginning, and he couldn't kill all the monsters in the Thunder Cave. Gao Feng didn't stop him from entering. Now there is such a competitor as Liu Fu, there is no need to guard the thunder cave and prevent others from entering.

After Liu Fu entered many times, his strength improved a lot, and he stayed in the thunder cave for a long time, and he killed more monsters. He's also a smart guy. Every time before entering the Thunder Cave, you have to ask Gao Feng and them first. One is to make sure there are no monsters inside, and the other is to know if Gao Feng wants them to go in.

Sometimes Gao Feng and the others want to go in, but the third brother Liu Fu doesn't go in. Sometimes Gao Feng and they will also give up the opportunity to Liu Fu, after all, they can't always take advantage of it.

The third brother Liu Fu's luck is still good. Not only did he get a team card in the Thunder Cave, but he also got a team card in other places. When he had a team card, he was the first to find Gao Feng and them. I hope I can work with them to deal with the monsters inside.

Gao Feng did not refuse. He didn't go in with Liu Fu either. Because if he goes in. The essence value will be lower. Gao Feng's people didn't all go in. Because there are two people who are breaking through. Liu Fu found three of his own people.

From the third and tenth layers to the fourth and first levels, two million three hundred and seventy-six thousand and ninety-nine essence yuan values are required. Gao Feng calculated, he entered a dozen more times, and he would be able to make up enough Jing Yuan value and raise it to the fourth order and the first layer. At that point, it was time to leave.

On this day, Wu Hao and Chen Qiang were both making breakthroughs and did not enter the Thunder Cave. Gao Feng didn't go in either. Dealing with monsters around Wu Hao and Chen Qiang can be regarded as protecting the Dharma for them.

There is one more person who has not entered the Thunder Cave, and that is Bai Rui. But she wasn't in a place where Gao Feng could see it, she was a little farther away, setting a trap. Gao Feng and the others couldn't figure out what Bai Rui was going to do. I don't think her traps can catch people. Even monsters won't be fooled. But Bai Rui went to check the traps every day, and laid out a lot of them. Her bait is also peculiar, it is a white stone, I don't know what it does.

Everyone else has entered the Thunder Cave. Entered together. There is also the third brother Liu Fu. This time they didn't have a team card, but they still let Liu Fu go in together. Although it is said that there is one more person, it is necessary to take away a part of the essence value. But they don't care about this part of the essence value either. After all, they are not in a hurry to go.

"Xiaobai, haven't you caught anything yet?" Gao Feng saw Bai Rui come back dejectedly. I knew that her trap didn't catch anything.

Bai Rui didn't speak, walked over with his head down, and then sat on a chair next to Chen Qiang. Look at what she looks like. It seems very depressing. Gao Feng smiled, and didn't care about Bai Rui. Continue to deal with the monsters that appear around you.

Just killed a few monsters that appeared around me, where the entrance to the mine cave is. Then one appeared, and then a second appeared. Gao Feng looked over and found that it was Liu Fu and one of his subordinates. Just as he was about to say how he came out so quickly, he saw that both of them were covered in blood. The third brother Liu Fu's subordinates also fell to the ground. Then two more people came out. The same was true of one of them, who was also covered in blood and carrying it on his back. Gao Feng saw it and hurriedly ran over.

At this time, the rest of the people also came out of the thunder cave. Among them, Li Jian, who was the strongest, was seriously injured, but he had not fainted yet. He was also the last to come out, and it is estimated that he was broken.

"What's going on?" Gao Feng asked.

"Monster, there's a very powerful monster in it, and you can't beat it at all. If it weren't for the fast running, it would probably all be explained in it. Li Jian said. He also fell headlong to the ground.

Wang Lin had already put down the Zhu Xingheng he was carrying, and opened Zhu Xingheng's mouth and gave him medicine. He ate it himself, and then he closed his eyes, and he fell headlong as well.

"What kind of monster, how did you hurt you like this?" Gao Feng asked.

Lin Yu, who is in good condition, is also taking medicine to treat his injuries. Bai Rui had already run to Lin Yu's side and looked at Lin Yu with a very concerned gaze.

"A monster I haven't seen before, it's powerful. It is probably the same monster as in the wolf's tooth cave. We had only reached the second cave, and before we had killed a few monsters, we rushed out of the third cave. It's too powerful, it's not an opponent at all. If it weren't for Li Jian's desperate blocking, all of us would have come out. Lin Yu said.

"That monster is really powerful, fortunately there is Li Jian, and we are at the entrance of the second cave, if we encounter that monster again in the third cave, I don't think any of us will be able to get out." Three Liu Fu said.

After listening to Lin Yu's words, Gao Feng understood. There should be a boss in the thunder cave that is the same as in the wolf's tooth cave. This was something he hadn't thought of. After all, I've been here for days, and there aren't any other monsters. This time it appeared, and it was indeed very sudden.

"Li Jian has been injured like this, that monster must be at least a third-order tenth-level strength. Are there any other monsters other than that monster? Gao Feng asked. He asked, of course, a monster he hadn't seen before. It's like in the wolf's tooth cave, when the boss appears, there are other monsters.

"There are more than a dozen monsters that I haven't seen before, and they are all a little more powerful than the original ones." Lin Yu said.

Gao Feng thought about it, then walked to Chen Qiang and Wu Hao and woke up the two of them. It's not suitable to break through at this time, you have to take care of Li Jian and them first.

"Just stay here and don't go. Chen Qiang and Wu Hao, you two must take care of them. Bai Rui, don't look at your traps, take care of Lin Yu here, okay? Gao Feng said.

Bai Rui nodded very seriously, and Gao Feng continued: "I'll go in and see what the strength of that boss-level monster is." ”

"It's too dangerous for you to go alone. That monster is too powerful, I'm afraid I don't have a chance of winning. The three Liu Fu said worriedly.

"Otherwise, I'll go with you, and I'll avenge Lin Yu." Bai Rui shouted.

"You don't go, you have to stay here and watch them in case they have any accidents. This is important. I'll just go alone, and if I can't deal with it, I'll retreat. Gao Feng said.

Bai Rui had already taken out her baseball bat and looked like she was about to rush in. Gao Feng asked her to stay, but she was not happy. But looking at Lin Yu's appearance, she had no choice but to stay.

"You're alone, can you really do it? Let's not wait. Liu Fu said.

"It's okay, I'm just going to check it out. If you can't beat me, I'll run. And it's useless to wait. If we don't kill this monster, we won't even want to go into the Thunder Cave for a long time. Gao Feng said.

The third brother, Liu Fu, still didn't think that Gao Feng could solve the monsters inside. Although he didn't know Gao Feng's specific strength, he felt that Gao Feng should not be much stronger than Li Jian. Li Jian was so miserable that he almost confessed inside, and Gao Feng estimated that he couldn't do it. But Gao Feng had decided, so he didn't say anything more.

In fact, Liu Fu didn't think comprehensively. Although Li Jian couldn't defeat that monster, he was indeed injured very badly. But if it was only Li Jian alone, then Li Jian would probably not be so miserable. Just now, Li Jian helped others resist and bought time for others. There is a big reason for this and the fact that he was so badly injured.

Although the entrance to the Thunder Cave is not a safe place, monsters always appear every once in a while. Li Jian's injuries were so severe that they had almost no combat power. Relying on Chen Qiang and Wu Hao may not be able to guarantee their safety. But Gao Feng still decided to go in and have a look. It's not that he is relieved that Li Jian and they won't have an accident, but Bai Rui is still here, and he thinks that Bai Rui is here, there shouldn't be any problems.

After deciding on it, Gao Feng checked everyone's injuries. Finding that there was no such fatal injury, it was an injury that could not be cured by the kind of medicine that treated the injury, and Gao Feng was relieved. He didn't go in right away, but was preparing something.

Now Gao Feng and the others are using spirit gathering suits. Even better than the Spirit Gathering Outfit is the Spirit Outfit. If you want to get the Spirit Outfit, you can use the Spirit Stone to upgrade the Spirit Gathering Outfit to the Spirit Outfit. But if you want to use the Imperial Spirit Suit, you need the strength of the third order and ten layers. Gao Feng's current strength is the third order and tenth layer, he can use the spirit suit, and he also has the spirit stone.

The Imperial Spirit Stone Gift Pack that I had purchased in the Treasure Room came in handy at this time. Only by upgrading the equipment to the Imperial Spirit Suit and improving his strength as a whole will Gao Feng be more at ease.

Gao Feng ran into a nearby house, where he took off the spirit gathering suit on his body, and then took out the spirit stone to upgrade the equipment. To upgrade a spirit suit, it costs 100 spirit stones and 800 essence coins. Gao Feng has all these things. The spirit stones he had bought from the treasure room, plus the ones he had accumulated over the years, were one thousand and one thousand. The Jing Yuan Coin is also enough, and this is also the Jing Yuan Coin that Gao Feng deliberately left in order to upgrade his equipment. The others are almost all synthesized into ingots. (To be continued......)