Because another group of strange beasts could appear at any time, the two did not dare to delay, but followed the previous plan and led the six level five strange beasts into the bottom of the cave.

Then they led them one by one into the dug cave.

In the narrow cave, the strange beasts were unable to exert their advantages at all and were killed one by one by Wen Yubai and Pei Shibin.

However, things were not always smooth. The third level five monster turned out to be a fire-type monster. It spewed out fire, and even Wen Yubai in the cave could feel the heat.

Unfortunately, this mutant beast had a bad fate and was also very stupid. Pei Shibin used the wind to blow the sea of ​​fire back, but this stupid mutant beast did not know to quickly retract its superpowers. Instead, it increased the output of its superpowers and finally burned itself to death.

"It turns out that the fire of a fire-type monster can burn itself to death." Wen Yubai sighed. She had never known this before.

Neither of them expected that they had just encountered a fire-type mutant beast, and the next one was another mutant beast.

After Wen Yubai led the fourth alien beast up, he found that this one had only the big eyes of Kazilan. He prepared to fight quickly and then go out of the cave to kill the only two remaining alien beasts at the foot of the mountain.

Unexpectedly, before she could make a move, a crack suddenly appeared under her feet, and she fell down. Before she could react, the crack closed.

This was the most dangerous experience Wen Yubai had ever encountered. If she had not taken out the two shields in the space in time and placed them in front and behind her to support a space and resist the closing of the crack in the ground, she would have definitely been sandwiched in the crack.

Then she quickly used the metal shovel placed in the space grid to dig towards the nearest cave.

However, after she dug a few times, her mental power "saw" Pei Shibin rushing out from the cave behind. After anxiously dodging the same crack attack from the level five mutant beast, he kicked the level five mutant beast out of the cave with an incredibly powerful kick.

You have to know that this is a strange beast that is two meters tall and weighs more than an elephant. Even if the beast is standing not far from the cave entrance, he can kick it out of the cave. This strength is unimaginable for Wen Yubai.

After Pei Shibin kicked the strange beast away, he immediately started digging a hole in the direction where she was buried. Wen Yubai turned back and dug in the same direction with him. In less than two minutes, the two of them had dug through the hole.

Pei Shibin hugged Wen Yubai tightly. He didn't say a word, but his violently beating heart and slightly trembling body showed how scared he was just now.

"Have you forgotten? In an emergency, I can hide in the system space, and the system can also take me to teleport short distances. It's just that the system won't take action if my life is not in danger." Wen Yubai comforted Pei Shibin.

Pei Shibin's body stiffened. He was so concerned that he had forgotten about this matter.

"But outside the safe house, don't use the system if you can. The alien surveillance should be able to monitor the cave." Pei Shibin suddenly thought of this matter again.

Although the system was created by the Lord God and is not a product of technology, it is composed of the Lord God of the Blue Water Planet after all. The creatures of other planets may not necessarily be afraid of the Lord God of the Blue Water Planet.

"You have to learn how to teleport as soon as possible. I have more gold coins than you. Next, let me kill as many monsters as possible so that I can buy you a skill book first." Pei Shibin made the decision.

Wen Yubai did not object. For both of them, improving their fighting power was the most important thing. Even if they had the ability, they would not be afraid of not being able to kill strange beasts and earn gold coins.

If she could teleport, she wouldn't be in such danger just now. Pei Shibin used wind energy to quickly transfer and evaded the attack of the earth-type monster.

However, the two had no time to continue talking, because the earth-type mutant beast jumped into the cave again, and a new group of mutant beasts appeared in the distance.

Wen Yubai no longer dared to be careless and gave the earth-type mutant beast a severe mental piercing. Pei Shibin flew forward and chopped off its head to end the disaster.

This incident taught the two men a profound lesson. They rearranged the cave and even luxuriously covered the main battle cave with thick metal plates.

When the metal plate becomes thick enough, it is difficult for even a level 6 or 7 monster to destroy it.

Fortunately, Wen Yubai's gold-based ability has reached level five, otherwise it would be difficult to do.

The two of them had almost no free time after that, and they spent the time constantly killing strange beasts.

Fortunately, after Wen Yubai was buried by the earth-type mutant beast, her bad luck aroused her good fortune as the girl of destiny. Then the two of them killed nearly a hundred level five mutant beasts and did not encounter any mutant beasts.

When the two men felt almost exhausted and even the fine pure spiritual water could not restore their strength, the sky finally darkened and no more strange beasts appeared.

Both of them were covered in blood, looking disheveled and exhausted.

But as the saying goes, hard work pays off, and Pei Shibin's originally unstable state finally stabilized.

What surprised Wen Yubai even more was that she had used mental piercing and mental shielding repeatedly throughout the day, and her mental strength was being consumed all the time, and then she relied on the fine pure spiritual water to replenish it.

As a result, in just one day, she found that if she continued like this tomorrow, her mental power would be able to be promoted to the middle level of level five.

However, because she seldom uses her gold-based abilities, their growth rate is very slow. If this continues, she probably won’t be able to advance for ten days or half a month.

"Continuous fighting, coupled with the effect of pure spiritual water, can greatly increase the advancement of artistic skills. I think my wind-related abilities will also be advanced in two or three days." Pei Shibin concluded. His wind-related abilities were also constantly being consumed today.

Wen Yubai used mental piercing and crossbow perfectly to kill monsters today, while Pei Shibin had honed his skills in using wind energy to increase his speed to the maximum, killing the monsters quickly, fiercely and accurately.

There were too many exotic beasts in most of the afternoon, and the two people's harvest was unexpectedly large.

The range of the system's observation suddenly increased to 30,000 meters. Even in a high-level safe house, it could see more than 6,000 meters away. It can be seen that the system has gained a lot today.

Most of the strange beasts in the afternoon were killed by Pei Shibin, and the number of gold coins he had was as high as 180,000. Even Wen Yubai himself had almost 100,000.

When Pei Shibin saw that he had enough gold coins, he exchanged the "Spiritual Power" skill book for Wen Yubai from the bracelet store.

However, the so-called skill book is actually an information block, which Pei Shibin sent to Wen Yubai as a gift.

Wen Yubai placed the information plate in the information transmission area of ​​his bracelet mall according to the instructions, and soon found that some information appeared in his mind.

She closed her eyes and "read" carefully. After about ten minutes, she opened her eyes and found that Pei Shibin was still in the same posture as before, sitting in front of her and looking at her.

Wen Yubai showed a rare excitement on his face: "There are a total of ten practical mental power skills. Now I realize that I was really ignorant about the application of mental power before. Let's earn enough points tomorrow and buy you one."

Ah, I haven’t seen so many people giving rewards for a long time, I’m so happy.

Thank you to Mimi's Ruby, Zhu Furong, Book Friend 20210204192730436, and Book Friend 20210612095735847 for their rewards and encouragement.