"No problem, drinking water is easy to deal with. We only need to get two water purification filters to solve the problem. The power is also simple. If you have gasoline, you can directly use a generator to generate electricity, but this will be a bit polluted. After all, this intermittent space is quite large. If power is generated for a long time, the air quality is probably very poor." Four-eyed snake said quickly.

"What I have left to you is naturally not that simple. My requirement is to build a series of simple filtering water purification tanks, and to generate electricity naturally."

"Boss, do you mean we are asked to build water trucks to generate electricity, and we also have to build a large water purifier facility?" The Martian said in surprise.

"That's right, that's exactly what it means, so next, you're busy."

"But why do we have such a large scale? After all, we only have less than ten people."

"Now there are less than ten people, but I still have to create a good breeding ecological ranch for fault space. This ranch will be related to our long-term hiding here, and we will not lack food to support it." Li Feng finally said all his thoughts.

"I'll go." The Martian was shocked on the spot.

"What is a shelter? Only one comprehensive condition can survive for a long time without relying on the outside world. This is called a shelter. Everyone, work hard." Li Feng patted the Martian's shoulder and said.

"This is the rhythm of exhausting me." Mars smiled bitterly with a shy face.

"Boss, I have a problem." Ling Qian said suddenly.

"Yeah, you said."

"Since this is our ultimate shelter, I still feel there is a loophole."

"You mean the entrance above the desert?" Li Feng responded with a moving heart.

"Yes, although the Sahara Desert is sparsely populated, it is still a loophole in our shelter." Ling Qian said seriously.

"Don't worry, it will no longer exist soon. Soldier King, you and Scorpion will do this immediately and blow up all the channels above. I swear to ensure that no channel can reach this place." Li Feng ordered.

"Why do we come in again if it explodes?"

"Telection." Li Feng gently spit out two words.

Although the transmission fee is one million blood semen at a time, it consumes a lot of harsh consumption, but if compared with the safety of the shelter, it is not worth paying attention to.

What's more, Li Feng had already made up his mind at this time and prepared to develop more mineral divisions and hunt and collect blood semen.

Therefore, the next goal is to concentrate firepower to upgrade the blood crystal space. If you remember correctly, upgrading the blood crystal space will not only increase the additional success rate of the synthesis box itself, but also the cost of transmitting the elevator will be relatively reduced.

Therefore, Li Feng really doesn't see the teleportation fee now.

As Li Feng gently spit out two words "Telection", everyone looked at each other and couldn't help but think in their hearts that the boss had planned everything.

If all the above things are completed, then this fault space, which is more than 1,200 meters above the surface, is truly the most hidden, safest and most comprehensive shelter in the world.

Then, Li Feng asked everyone to discuss how to complete the task. He himself came to the river beach on the underground river and entered the No. 3 Blood Crystal Space.

After entering the Blood Crystal Space, Li Feng renamed the Blood Crystal Space and changed its original No. 3 Sahara Desert into a "sanctuary". There is no number.

After doing this, he entered the icon function of the Blood Crystal Upgraded:

Level 5 Blood Crystal Space:

It has five blood crystals, which automatically collects blood essence in a diameter range of five kilometers, a diameter space of five hundred meters, a diameter transmission elevator of five meters, and a round trip transfer fee of one million blood essence. The maximum synthesis function is five kinds of life synthesis. The additional synthesis success rate of 500 parts is the upper limit of five units of animal and similar breeding quota, and the upper limit of fifty units of similar magic breeding quota.

The next level 6 blood crystals require 100 million upgrade conditions.

Level 6 blood crystal space function:

It has six blood crystals. It automatically collects blood essence in a diameter range of six kilometers, a diameter space of six hundred meters, a diameter transmission elevator of six meters, and a round-trip transfer fee of nine hundred thousand blood essence. The maximum synthesis function is six kinds of life synthesis, an additional synthesis success rate of six hundred parts, an upper limit of six units of animal and similar breeding quota, and an upper limit of six units of similar magic breeding quota.

...

The above are a number of functions that can be improved by upgrading the next level six blood crystal space, and very many of them are very practical.

Fortunately, the upgrade cost of the Blood Crystal Space is not as huge as the level of feeding creatures.

Li Feng breathed a sigh of relief. He still had 2.1 billion blood essence. If he didn't say anything, he finally had enough blood essence to upgrade the blood crystal space this time.

"Advance to level 6..." He sent out a request to upgrade the blood crystal space.

"To upgrade to the sixth level blood crystal space, 100 million blood essence will be consumed. Will it be upgraded?"

"yes."

With Li Feng's affirmative response, the next moment, his total amount of 2.156 million blood semen quickly decreased by 100 million.

At the same time, Li Feng paid close attention to the above performance improvements after the blood crystal space was upgraded to level 6, all of which were improved in real time.

The most direct result of being promoted to the sixth level blood crystal space is that the horizontal straight line of his sight, a ball of red light gradually condensed, and not long after, the sixth blood crystal floated in front of his eyes.

Moreover, the entire blood crystal space is also full of red light. The surrounding red light walls are constantly expanding and continue to change for about five minutes. At this time, the blood semen space has expanded into a diameter space of 600 meters.

The diameter of the transmission elevator in the center has also been expanded to a diameter of six meters.

The expansion of the diameter space of the transmission elevator means that the elevator can now accommodate at least six meters in diameter.

Of course, the six-meter diameter space is actually far from enough to teleport queens, super snakes, giant octopus and crocodile. It seems that the focus of upgrading the blood crystal space is still a long way to go.

Five minutes passed, and the blood crystal space was fully promoted. When Li Feng's eyes fell on the blood crystal upgrade icon again.

Sure enough, the next level of blood crystal upgrade is already level seven, and the performance improvement is the same as before, but the demand for this upgrade has reached 300 million.

Li Feng clearly remembers that the cost of upgrading the blood crystal space is over 100 million yuan, but the cost of upgrading the blood crystal space is no longer ten times the previous increase, but now it is twice.

Two hundred million blood crystals. Not much, Li Feng did not hesitate and continued to issue a request to upgrade to the level seven blood crystal space.

Five minutes later, he had another blood crystal on his hand and the seventh blood crystal. At the same time, the blood crystal space under his feet naturally also expanded a series of expansions.

The space of the eighth level blood crystal is consumed by 400 million blood semen. Li Feng did not think too much and decisively continued to advance to the eighth level.

Five minutes later, the eighth blood crystal was obtained.

The ninth level blood crystal space is the condition for upgrading 800 million blood crystals.

“Promotion…”

Another five minutes passed, and the space of the level nine blood crystal was promoted. At this point, the 21 billion blood crystal accumulated by Li Feng consumed a total of 1.5 billion blood crystals, and now only 656 million are left.

The tenth level blood crystal space is promoted to 1.6 billion. Unfortunately, Li Feng's current total blood crystal is less than the conditions for promoting to the tenth level blood crystal space. Therefore, he could only secretly regret it. He finally withdrew from the icon to upgrade the blood crystal space.

"Congratulations, you have been promoted to the nine-level blood crystal space. You should have nine blood crystals in total, which will automatically collect blood essence in a diameter range of nine kilometers, nine hundred meters in diameter blood crystal space, nine meters in diameter transmission elevator, six hundred thousand blood essence back and forth round and round transmission fee, the maximum synthesis function is nine kinds of life synthesis. The additional synthesis success rate of nine hundred parts, the upper limit is nine units of animal and similar breeding quota, and the upper limit is nine units of similar magic breeding quota..."

"Tip, the upcoming level tenth blood crystal space will open several new abilities. First, if the synthesis function reaches the level tenth blood crystal space, you will soon have the authority to synthesize it."

"Secondly, the permissions possessed by the level 10 blood crystal space will soon be activated - the transformation function."

"Third, the level ten blood crystal space permission. The permission to purchase the fifth special-level empty space column will be reached."

"The fourth, level 10 blood crystal space authority, you will get the first place to raise plant creatures, please continue to do it..."

...

A series of congratulations and the new function prompts that are about to reach the level 10 blood crystal space will be opened soon, which makes Li Feng silent.

Damn, he is only a few hundred million blood essence short of now, and it is not impossible to meet the space conditions of the level ten blood crystal. It is really deadly.

It turns out that every time the blood crystal space that is promoted to five levels will be activated, new blood crystal space functions will be activated one after another?

I won’t talk about the fifth special-length empty space column. After all, he knew it early in the morning, but what is the new transformation function?

There is also a secondary synthesis? This means that once the demon is synthesized, you can still perform another repeated synthesis?

I go, can my own crocodile continue to combine five death worms into it?

At that time, wouldn’t the Nether Crocodile have nine lightning column emitting portals?

The biggest gain is the most improvement. It turns out that I have reached the level 10 blood crystal space and finally have the first plant breeding quota. Does this mean that I can start to prepare to raise the day-level purple moss moss planting bacteria in the Snake Emperor Cave?

In this regard, Li Feng was really itchy because of several new functions. Now that he lacks blood essence for the time being, he can silently withdraw from the blood crystal space and return to the real world.

After quitting, Li Feng had four more blood crystals in his hand. The strategic significance of these four blood crystals is too great after the blood crystal space has teleportation ability.

And this also means the birth of four new ore divisions.

"Okay, let's go, let's go, and we will take action..." Li Feng retreated from the blood crystal space and led everyone out of the underground fault.

At this time, the queen of ant who grew up to the eighth level is no longer afraid of the Snake Emperor. Then, he left the matter here completely to the free development of the ant soldiers.

Obviously, the queen of the ant was very anxious at this moment, driving all the Titan crypt ants to dig the entrance of the Snake Emperor Cave. It seemed that she was still very eager to move the entire clan into the Snake Emperor Cave.

However, Li Feng had a while of communication with her, but still had not figured out what the ant queen's urge to think was?

Is it the heavenly purple moss moss?

But this shouldn't be true. After all, the queen of ant wants to eat these purple moss, so she can let the ant colony dig out and eat temporarily.

"It's so strange!"

However, Li Feng, Mars and others had already searched the Snake Emperor Cave to the sky, and there was no strange thing inside.

Is there any secret hidden in the dense caves of small snakes?

If this is the case, Li Feng will be powerless for the time being. After all, they can't get into the hundreds or thousands of snake caves as thick as a bowl.

Alas, I don’t care. Anyway, I have stabilized this place now, so I can only make a conclusion next time.

Thinking of this, Li Feng waved his hand and led everyone back to the original passage, walked back to the ground again, and walked for nearly an hour.

When everyone walked to the Shiyan Crypt a long time ago, Li Feng stopped and ordered the King of Soldiers: "Don't blow up this Shiyan Crypt space, keep it."

"Your task is to blow up all the airways in front of the stone rock crypt."

"I understand, boss." Soldier King Xu Wentao nodded quickly.

Then, climbing upwards will make the geology of half sand and half soil. According to Li Feng's memory, the stone rock crypt is about seventy or eighty meters away from the ground, although this stone rock crypt is not very large.

But there are at least 40,000 square meters, and such a spacious space is just right for storing some food and resources.

After walking in the left and right passages for about ten minutes, everyone finally climbed out of the passages again.

At this time, the ground world happened to be noon, and the Sahara Desert at noon was particularly harsh and hot.

Li Feng did not stop. He walked about a hundred meters at the exit, then took out a blood crystal from his arms and planted it decisively.
Chapter completed!