For the spell of 'Undead Explosion', Ye Mu has already understood it briefly before, which is nothing more than ordering those undead with soul marks to cause physical damage to creatures within the range by self-detonation, and the higher the level, the stronger the explosion power!

It's a bit like a KB molecule's suicide bomb, but here's the advantage: it costs zero to cast spells!

In other words, the cost of summoning the undead is required by the leaf curtain, and the additional soul points are not required to be used to cast spells. Pen % fun % Pavilion www.biquge.info

Since he didn't comprehend the 'Primary Summoning Mastery', this 'Undead Explosion' spell could not be learned at this time, so the only options left for Ye Mu were 'Blood Shadow Step' and 'Life Siphon'.

Blood Shadow Step: Cast a spell that consumes 100 soul points, at the cost of overdrawing a large amount of physical strength, instantly increases movement speed, and annihilates all sounds caused by movement for 3 seconds!

Life Siphon: Casting a spell consumes 100 soul points, and by absorbing the remaining body functions in the corpse, it can quickly repair its own injuries. This skill must be released by contact, the recovery effect depends on the remaining functions of the corpse and its own injuries, the system recommends that the casting interval is 24 hours, if you frequently absorb the different body functions, it is easy to cause the body's rejection reaction, which will lead to the collapse of the body!

These two spells have their own advantages, the 'Blood Shadow Step' can not only be used to escape, but can also achieve a surprise effect in battle, and the 'Life Siphon' is a powerful means of preserving life, so that Ye Mu is once again guilty of the tangle.

He only had 1120 soul points left at this time, and the learning cost of these two spells was 1000 soul points, so he could only choose one to learn at the moment!

After some ideological struggle, he finally chose 'life siphon', not for anything else, just because he was injured right now!

……

When Ye Mu returned to the dining hall again, more than a dozen bags of starch had been neatly stacked on the floor of the dining room, and some processed cured meat was stacked next to it.

Old Chen, who was busy counting the items, saw Ye Mu's suddenly emaciated body, so he asked tentatively, "Xiao Ye, are you upgrading your soul fire again?" ”

Due to the last madness incident, Ye Mu's physical condition has been known to everyone in the base, so he no longer shy away from it, and nodded directly and replied, "Well, those drugs that treat radiation are not very effective, so I want to curb the alienation on the body by advancing to the soul fire......"

"How's it going?" Chen Lao asked with concern.

"I think this path is okay, at least there is no danger of genetic mutation in the short term." After speaking, Ye Mu took out three vials and put them on the dining table, "These three bottles of evolution elixir were specially prepared by me for you, Aunt Chen, and Lei Xin, you should drink them quickly!" ”

Then he said to Shen Qing, "When I come back next time, I will prepare a potion for the little girl, and I won't give it to her this time!" ”

"She's a child, so she doesn't have to waste her soul points!" Shen Qing refused.

Ye Mu waved his hand, "I am free to advocate this matter, so it's decided!" ”

"Xiao Ye, your aunt and I are so old, don't spoil these things! I see you can keep it and trade it! Old Chen resigned with a look of shame.

"Yes, I can't fight, even if I drink the evolution potion, it's a waste, you better exchange it for soul points!" Lei Xin also politely refused.

"Don't shirk it, all of you! If you all get evolution, then I can be more confident when I go out in the future! The old man of the province is worried about the instability of the rear......" Ye Mu said with a smile.

Hearing him say this, the three of them had no reason to refuse, so they had to pick up the evolution potion on the table with shame on their faces. While they picked up the potion, they secretly decided in their hearts that after they obtained the evolution, they would definitely help Ye Mu take care of the base, so that he would not have to worry about the future!

In between the skeletons carrying food, Ye Mu took the time to say to the thin monkey, "I found some biosynthetic materials outside before, but unfortunately the current soul points are not enough, so I can only wait for the next time I come back, and then improve your and Yang Guang's weapons, and when the time comes, I will ensure that your barrier knife will be sharpened like mud!" ”

Before the thin monkey could answer Yang Guang, Chen Lao asked curiously, "What kind of biological material?" ”

Ye Mu smiled, and moved out the mutant spider's spear foot, and at the same time handed his improved horizontal knife to Chen Lao, "Elder Chen, look, this horizontal knife is resynthesized from the carapace of the mutant spider!" ”

After taking the horizontal knife, Chen Lao took it in his hand and studied it for a moment, sighed and said, "Alas, if our country's research institutions are still there, I am afraid that there will be earth-shaking progress in the field of basic materials!" ”

"These things, but I used the undead ability to synthesize, could it be that they can be used in other ways?" Ye Mu asked puzzled.

Chen Lao shook his head, "For the application of biological materials, the scientific community is all researching, if these research institutions can still operate normally, I believe that a batch of high-performance biological materials will soon be available, if these things can be used in weapons and equipment on a large scale, maybe they can really compete with those mutant creatures!" ”

"Now that the world has become like this, I'm afraid it's not very likely, right?" Lin Shen interjected.

"Don't underestimate the energy of the country at any time! Even if a large area of the country falls, there will always be a part of the elite that remains, and war is the most powerful promoter of military technology! Almost every outbreak of science and technology is inseparable from the shadow of war, but sometimes it will evolve into a little deformed! Old Chen said in a deep voice.

"Did you know that when the First World War broke out, most of the troops in Europe were still on horseback, but towards the end of the First World War, rapid-fire machine guns, aerial bombardment, tank attacks and chemical weapons were commonplace.

"I hope so......" Although Ye Mu does not want to contact with the military, he also does not want the human race to be extinct, I have to say that sometimes people are a complex of contradictions.

When the skeleton moved all the food in the restaurant into the space, Ye Mu turned to Shen Qing and said, "I'll go to Qingshui No. 1 Middle School now, if you come back late, don't risk looking for me!" ”

"You give me the honesty to stay in the base! Before the injury is healed, I want to run out! I'll leave this matter to me and Angel, no matter what, I'm still good at escaping! Shen Qingfeng's eyes widened, and she raised her willow eyebrows and said.

"If I don't go, will you take away all this food?" Ye Mu asked with a smile.

Hearing this, Shen Qing couldn't help but be slightly stunned. If you don't transport food through the space of the leaf curtain, even if everyone in the base goes out together, you may not be able to get so much food.

However, thinking about it, the momentum couldn't be weaker, Shen Qing quickly changed his mind, and said sharply, "Even if you really want to go, you must bring a few more people!" If you want to go out alone, there are no doors! ”

"I'm just just delivering food, and I won't risk my life, as for being so popular?" Ye Mu asked helplessly.

"As for! I'll go with you! Angel suddenly stood up and said.

"I told you..."Ye Mu said with a frown.

"If you don't take me with you, don't even think about walking out of the base gate!" As he spoke, Angel stretched out his hand to stop in front of Ye Mu.