It didn't take much time to upgrade your equipment, and the process of upgrading was smooth. As long as there are enough materials, there is no need to worry about the failure of the upgrade process, but there is one place that Gao Feng did not expect, and it is also something that makes him very depressed.

That is, when upgrading the equipment, if the equipment has been strengthened, or the quality has been improved, then after the upgrade is completed, it is possible to drop the enhancement level.

Gao Feng's spirit gathering outfit had already been strengthened to the third-level and ten-star Cheng Dù, and he also had two pieces of equipment of perfect quality. After the upgrade was completed, seven pieces of equipment dropped to level 2 in terms of enhanced stats. The only thing to be thankful for is that there are two pieces of equipment of perfect quality, and the quality has not dropped.

Depressed to depressed, but I have to move on to the rest of the story. Although the overall stats have been improved. But Gao Feng still bought some strengthening stones very painfully, and once again strengthened the equipment to the third-order ten-star.

After that, Gao Feng returned to the entrance of the Thunder Cave. After explaining to Chen Qiang, and repeatedly telling Bai Rui not to leave, Gao Feng entered the Thunder Cave.

In the Thunder Cave, the monsters in the original first cave have all been killed by Li Jian and them. They are boss-level monsters that they only encountered after entering the second cave. As they escaped, the boss chased them to the first cave. So after Gao Feng came in, he saw the boss-level monsters in the first cave, and there were some other monsters.

There are some monsters that Gao Feng has seen, and they are the monsters in the thunder cave. I guess I came from the second cave. The rest are unseen. In addition to boss-level monsters, there are some monsters that are like guards, specializing in guarding boss-level monsters.

Needless to say, the monsters here are original. Gao Feng is very familiar. The monsters I haven't seen before are all in similar shapes. It's also the kind of monster like an ancient general. It's just that their armor glows with a pale golden light, and the long knives in their hands. It also emits a pale golden glow. As for the body, it's still the same zombie look.

Boss-level monsters, easy to identify, because this monster is almost two meters tall, which is taller than other monsters. It is also the only monster with a Guan Gong broadsword. And the armor on this monster is also different from other monsters. It looks even more powerful, and Gao Feng's first impression is that this monster's military rank must be higher, and he must be a general anyway.

Gao Feng saw the monster. Naturally, the monster also saw Gao Feng. The first to rush over was the boss's guards. The boss also rushed towards Gao Feng. Gao Feng was very careful, after all, Li Jian was injured and passed out, although he was stronger than Li Jian, he definitely couldn't be careless.

Without fighting those boss guards first, Gao Feng dodged those boss guards and went towards other monsters. He plans to take out all the other monsters first, and then deal with the boss guards. as well as bosses.

It's not hard to take out those zombie leather armor soldiers. Gao Feng did it quickly. All that's left is a dozen boss guards, and that boss. The guards wore metal armor with a pale golden glow. Although it looks dilapidated. But it's also better than those in tattered leather armor.

As soon as they fought, Gao Feng tested the strength of these boss guards. They should all be third-order and fifth-level strengths. This kind of strength is indeed more powerful than the original monster in the thunder cave. But such strength. It's hard to stop the third-order ten-story Gao Feng. Especially Gao Feng, who changed into a full set of imperial spirit suits.

As much as possible to avoid the boss, Gao Feng concentrated on dealing with the boss guards. More than a dozen boss guards. was soon killed by Gao Feng. The rest is that boss. Now that there are no other monsters in the way, Gao Feng can deal with this boss with confidence.

To talk about strength. This boss has the same strength as the boss in the Wolf's Tooth Cave. Gao Feng had killed the boss in the Wolf's Tooth Cave, and it was naturally not a problem to deal with this one with the same strength. Especially when the strength has improved a lot.

After the real fight, Gao Feng had the bottom in his heart. This boss should be a third-order ten-story boss. Maybe it's because he's a boss.,The guide zhì is very resistant to fighting.,It looks much stronger than the average third-order ten-layer.。

Gao Feng gained the upper hand little by little, and kept injuring the boss. Don't look at the boss who looks like an ancient general, holding a Guan Gong big knife in his hand, but he doesn't know any kung fu, just a horizontal and vertical slash attack. Although every time you attack, there will be a sword qi emitted, but as long as you are careful, you will be fine.

The boss is getting more and more injured. Just like the boss in the wolf's tooth cave, this boss also summoned a guard again, but it was still quickly killed by Gao Feng. After that, it is necessary to continue to deal with this boss and hurt it more severely. It's only a matter of time before you take out this monster boss.

"No, there's definitely a problem. Li Jian's strength is above the third order, and in the face of this monster like the werewolf boss in the Wolf Tooth Cave, he shouldn't be hurt so badly. What's more, he still has new abilities, and his strength is not much weaker than me at that time. I wish Xingheng and their strength have also improved, and they will deal with this boss together, even if they can't beat it, they won't be injured so badly. Gao Feng said in his heart.

The boss in the thunder cave, if it weren't for his strong vitality, he would have died I don't know how many times. Now just wait for the vitality of this boss to be exhausted, and Gao Feng will win.

"They hurt so badly, could it be that this boss has other moves that haven't been used? But this will almost kill it, and I don't see any powerful moves from this boss. Could it be that it wasn't this boss who hurt Li Jian. There's a more powerful boss in the Thunder Cave? Gao Feng thought so.

When he came in, he didn't ask Lin Yu what the boss looked like. He didn't expect there to be two bosses either. If this is not the monster that hurt Li Jian and them, then it is likely that this is not a boss, and the real boss has not yet appeared.

The life force of the monster has finally been exhausted. Before they ran out of vitality, they were all about to be dismembered by Gao Feng. When its head was cut off, it was completely dead. At this time, a flash of light flashed on the monster's body, and some loot appeared.

"There are really a lot of them, and the essence value is about the same as the werewolf boss in the wolf's tooth cave. Judging by these things, this should be a boss-level monster. Gao Feng said.

In the first cave, there were no other monsters, and Gao Feng could safely pick up the things on the ground. At this time, he also needs to rest. After all, it's a boss, and if you want to be free from fatigue and not get hurt at all, it's impossible. Gao Feng still suffered some injuries, but they were not strict.

After picking up the things, Gao Feng stood in the first cave for a while. He became more and more sure that it wasn't this that hurt Li Jian and them. He didn't go out, but continued to walk towards the second cave. In the second cave, the original monsters in the thunder cave are still the same.

After all of them were eliminated, Gao Feng continued to walk towards the third cave. When he came to the entrance of the third cave, he saw that inside the third cave, there was a special deposit. When he saw this monster, Gao Feng was even more sure that it was not the one who hurt Li Jian and them just now, it should be this.

That monster also discovered Gao Feng for the first time. Rushed straight towards the mouth of the cave. Gao Feng hurriedly retreated to the center of the second cave. The monster's speed was very fast, and it quickly rushed to the second cave and went straight to Gao Feng. There were a few other monsters that followed, but they were all monsters that I had seen in the mine cave before.

This monster is not standing on the ground, but floating on the ground. The distance from the ground is about half a meter. The stature is also a little taller. What he wears is not metal armor, nor leather zuò armor, but cloth. It's the kind of cloth that resembles ancient times. If it weren't for the head and hands, it would still look like a zombie, and this monster would really look like a personable ancient hero in this outfit.

The monster has a red giant sword in its hand. The blade of this sword is two meters long, and it has a strange shape, a diamond-shaped structure that is wide in the middle and narrow at the ends. The sword didn't look like metal, but rather some kind of crystal. And the sword is not caught in the monster's hand, but hovers next to the monster's hand.

As soon as the monster approached, his hand moved, and at the same time that the sword was pointed at Gao Feng, a layer of flames appeared on the sword body, and then he saw a pillar of fire shooting out from the sword, coming towards Gao Feng. Gao Feng hurriedly flashed to the side. After he dodged, the place where the pillar of fire hit not only dented a little, but also became charred.

Gao Feng had just dodged when the monster's left hand pushed forward, and a fireball shot quickly towards Gao Feng. This fireball is the size of a basketball and is fast. As soon as Gao Feng stood up in the dodge movement, the fireball reached Gao Feng's body. Gao Feng hurriedly propped up an ice shield, and the moment he blocked the fireball, Gao Feng's body slid backwards. On the way out, the ice shield shattered. Luckily, the fireball was gone.

This must be the monster that hurt Li Jian and them. This must be a boss as well. And Gao Feng also felt that this monster should not be the boss of the Thunder Cave. Because it doesn't match the thunder and lightning properties of the Thunder Cave. This monster is obviously of the fire type.

The monster's next attack immediately negated Gao Feng's idea. Because the monster's next attack was a bolt of lightning that struck him. This monster actually has two attributes at the same time.

Gao Feng was struck by lightning. Even if his lightning resistance exceeds 100 points, he is a little unbearable. He hurried back towards the first cave. Because it was too close to the third cave, he was afraid that other monsters would come out and disturb him.

The monster's movement speed was very fast, no slower than Gao Feng's. As soon as Gao Feng ran towards the first cave, the monster's attack arrived. When slowing down Gao Feng's speed, the monster also came behind Gao Feng. Now Gao Feng knew why Li Jian and the others would be injured like that just if they ran out. With the attack of this monster, coupled with speed, there is no one in the way, and it is impossible to run. (To be continued......)