Arknights is too real, right?

7 p.m.

It was completely dark at this time in the cold northern country of Ursus. In addition, the black clouds left after the natural disaster completely blocked the moonlight. The entire city of Mandel could be described as invisible.

The [Reaper] mercenary team, including ACE, has a total of 9 people, plus the members of the Glasgow Gang led by Vina, a total of 20 people walked carefully through the dark streets of Mandel City.

"Ouch."

Xia Feng accidentally stepped on a piece of gravel, staggered and almost fell down.

Kate grabbed his arm from behind and held him steady.

"Be careful with you."

Xia Feng looked depressed. This was the fifth time he had fallen tonight.

Indra and several gang members walked at the front to clear the way, and ACE's [Death] team was responsible for the rear. Even though he was sandwiched in a very safe middle position in the team, Xia Feng still always had "accidents" and bumped into each other along the way. .

Xia Feng gave Kate an apologetic smile, but even though he was very close to Kate, he still couldn't see her face clearly.

There is no way, he is also very helpless!

The gang members walking at the front of the team with Indra are basically from the Philin tribe. Because of their racial characteristics, they can still see the outlines of the surrounding things clearly even in a dark environment. As a member of the Aslan tribe, Vina naturally It is also not inferior in night vision capabilities.

Just kidding, the hunting habits of big cats are all day and night.

Although Kate and several other gang members of the Vaifan tribe do not have the super night vision of Indra, they are not completely unable to see the road. As for ACE's [Death] team, everyone is equipped with a Tactical goggles with night vision.

Looking at it this way, Xia Feng felt that he was the weakest player in the group. He was the only true "blind man" in the entire team.

At this moment, he felt someone from behind gently tugging at the corner of his clothes.

Turtle's timid voice came.

"Brother Xia Feng, don't walk too fast. I. I can't see anything now and I'm a little scared."

Xia Feng was so moved that he almost cried. It turned out that he was not at the bottom. The little guy Gui Gui also had no ability to distinguish the environment at night.

Xia Feng held the little hand of Snake Butcher Box.

"It's okay, I'm holding you, if you want to throw us both!"

"."

Wei Na stopped and handed a palm-sized square object to Xia Feng's hand.

"Xia Feng, you can use this."

Xia Feng held this thing with some confusion.

"What's this?"

"This is a low-light lamp. There is a switch on it. Please turn it on and try it."

Xia Feng touched it for a long time and found a small button on it.

"Crack!"

He pressed the switch, and the small square thing instantly emitted a milky white halo, illuminating a location about two or three meters around it.

Xia Feng showed a happy expression.

"Wow, this thing is great, but won't this give away our location?"

"No, the light source emitted by this kind of low-light lamp has very weak propagation properties and will disappear completely after a certain distance. Unless the enemy is near us, it will never be discovered. Of course, if the enemy is nearby, even if there is no light They will also find us, so feel free to use it."

Xia Feng raised the low-light lamp high.

"It's so amazing. Who invented this thing? Is there a battery inside? Will it run out of power soon?"

Veena smiled.

"This kind of low-light lamp will not go out even if it is turned on for half a year, because it contains a B-level source stone!"

"Holy shit!"

Hearing Wei Na's words, Xia Feng, who had put the low-light lamp on his head, almost threw the thing away.

Although he had worn a mask and taken medicine, he knew the dangers of the Origin Stone better than anyone else. Wasn't he holding a bomb that exploded randomly?

Turtle held out his hand to him.

"Brother Feng, if you are afraid of contracting the ore disease, let me hold it. Anyway, I am not afraid of the Origin Stone now."

Just throw this thing to Turtle to hold because you are afraid?

Well, this is too embarrassing.

"It's okay, I'll take it. Anyway, there are a lot of Origin Stones in this city besides this broken lamp. I can't be that unlucky, hehe."

Xia Fengqiang pretended to be calm, but his fingers were already a little stiff.

Wei Na couldn't bear to see his cowardice.

"Xia Feng, don't you know the classification of Source Stone quality?"

"Huh? There are quality classifications for source stones. What is that?"

Seeing that Xia Feng really didn't understand, Wei Na sighed.

"Kate, come and explain to him."

"good."

It's terrible to be uneducated. Weena knew exactly what was going on, but she couldn't express it in words. It seemed that it was Kate's turn to appear again, a guy with a suspected PhD degree.

In Xia Feng's eyes, Kate usually keeps a low profile, but based on today's performance, Kate is really a practical person with both civil and military skills. No wonder Wei Na trusts him so much.

Kate cleared her throat.

"Let me explain. The specifications of finished Origin Stones are uniform around the world. Each finished Origin Stone weighs 450 grams. All mechanical equipment in the world is designed according to this specification."

Xia Feng naturally understands. To put it bluntly, this is like the model of a battery. If the mechanical equipment in the world were compared to a four-wheel drive competition, then the model of your battery must be an AA battery. It doesn’t matter whether it is too big or too small. No matter how powerful your power is, it's useless if you can't install it.

Seeing Xia Feng nodded in understanding, Kate continued.

"In addition to specifications, finished source stones are also divided into three grades, specifically B-grade, A-grade, and S-grade. S-grade represents the highest quality, commonly known as the purest source stone. It is grown after natural disasters. The core part of the Source Stone Cluster is also the part with the highest energy concentration. S-grade Source Stone is very rare on the market and will only be used by national agencies on specific occasions.”

Xia Feng nodded.

"What about Class A and Class B?"

"A-grade source stone, also called advanced source stone, is mainly composed of the peripheral parts of the source stone cluster. Although the energy density is not as high as S-grade, it is also a genuine source stone body. It is generally used in heavy industrial equipment and large transportation vehicles. It is also a very precious existence. As for the B-level source stone, it is a separated substance during the processing of source stone. Although it also contains a small amount of source stone, to be precise, it should be called artificial source stone. , B-grade Originium has a wide range of uses, such as civil lighting, automobile fuel, heating and cooling, agricultural machinery, etc. Even some small and poor countries have invested B-grade Originium in weapons research and development."

So, Xia Feng finally understood. No wonder the Source Stone is so precious in this world. Looking at the entire world of Terra, the Source Stone is indispensable in almost all fields.

"Kate, can I buy all these different quality Source Stones?"

"No, S-class source stones are prohibited from market trading in all countries around the world. In other words, the number of S-class source stones a country possesses is equivalent to the country's strength. In addition to S-class source stones, most countries have A-class source stones. Stone transactions must be reviewed, and the final consumption route of the Source Stone must be recorded. Of course, private transactions, such as ours, are not excluded."

"What about the most common B-class?"

"There are no special restrictions on B-grade source stones. As long as you have money, you can buy them at will. However, although there are many B-grade source stones, their value is not within the reach of ordinary people."

Xia Feng finally understood this time.

In a sense, the Source Stone is equivalent to the oil in his original world, but this super energy source is more extreme than the Oil Stone.

Regardless of the energy intensity or rarity contained in it, the Origin Stone is far superior to oil. More importantly, the Origin Stone can also activate Origin Stone techniques that cannot be explained by the science of his original world.

Whether it is an S-level pure source stone, an A-level advanced source stone, or even a by-product of the source stone, a B-level source stone, they are all treasures that can be fought for at any cost.

However, the energy in the Source Stone is not infinite. It will gradually be depleted with use, and natural disasters are the only way for countries around the world to obtain Source Stone replenishment.

In other words, if one day in the future, a person or a force controls the output of the Source Stone through some method, then he will control the world in disguise.