Time flickered, and three days passed.

With the help of Yun Zhongge, Mu Xue successfully broke through to the Kaiyuan Realm.

In the past few days of practice, Mu Xue has not used those light blue berserk spars, but has been using cyan berserk spars to improve her strength.

After advancing to the Kaiyuan Realm, under the insistence of Yun Zhongge, she used the three green furious spars to consolidate the realm, and after the three green spars were absorbed, she also successfully advanced to the Kaiyuan Dual Realm.

Yun Zhongge suddenly felt that the thousands of light blue furious spars were a burden to carry, so he simply used them for his own cultivation.

Now that he was already in the True Martial First Realm after all, the thousands of light blue spars were only equivalent to thirty or forty green spars, which hardly played a big role in his realm improvement.

It took him a day to exhaust all the light blue crystals, and the realm was still maintained at the True Martial One Heavy Realm.

Now they only had more than a hundred cyan berserk spars and a pale golden berserk spar left in their hands.

And, of course, there's the rather mysterious dark green diamond-shaped spar.

Two more days passed

Mu Xue also packed some clothes or something and put them into a small box. It's a lot smaller than the song in the clouds.

The two walked out of the Black Oil Mountain Villa, looked back at the place where they had lived, and this time they really left.

The road ahead is unknown and dangerous, but it is also full of hope.

Yun Zhongge left the slum directly with Mu Xue, and did not go to Beiyuan City like Beiyuan, but went all the way to the south, intending to find a good place to live.

When they left here, they also took with them some seeds, including vegetables that they eat on weekdays, fruit trees, and seeds of some grains. Although they are not much, they are enough for two people. The seeds were all found by Yun Zhongge from some grocery stores in the slums.

These seeds are extremely precious to the two of them. Nowadays, there is less and less food, and if you want to have sustainable food, you have to grow it yourself, and only then can you survive.

They passed through the fertile fields, and although there were still crops growing, they had been destroyed by those demonic beasts.

It was nearly dusk, and the two came to a hill to stop and rest.

"What kind of place are we looking for?" Mu Xue took out a piece of dry cake and handed it to Yun Zhongge, and then asked.

"There is water, there are fields, and it would be better if there were valleys like this." Yun Zhongge thought for a while and said.

"Hmm." Mu Xue nodded, "When I was at the gathering point, I heard them say that the earth is now full of a mysterious dark power, although we can't see anything, but it will be eroded over time. ”

"What dark forces?" When the song in the clouds heard this, he couldn't help but be a little surprised.

"I don't know." Mu Xue shook her head, "The reason why the state built those cities underground is because of this. ”

"And I've heard that this situation will get worse and worse, and it seems that every time the rain comes, it will bring such mysterious dark forces."

"Hmm." Yun Zhongge pondered, recalling his communication with Silverwing at that time. At that time, Silver Wing also said that if you want to survive on this land, you must have the heart of the city, only in this way can you expel the darkness and have a space suitable for human life.

At first he believed it, but as Silverwing deceived him, he felt that it was a lie to him. But now that Mu Xue suddenly said this, he suddenly felt that it should be true.

The world is still changing, and he also feels a little uncomfortable when absorbing the energy between heaven and earth, at first he always thought that he was too tired, but now it seems that there is something wrong with this world.

"Do you remember my experience in Kitahara Castle?" Yun Zhongge looked at Mu Xue and asked.

"Remember, what's wrong?" Mu Xue was a little surprised, and she didn't know why Bai Yun Zhongge suddenly mentioned this.

"When I was hunting those third-level zombies, one of the Silver Wings told me that this world has changed, full of dark power, and if we humans want to survive, we must have the heart of the city to expel the darkness and have a living space suitable for humans."

"The heart of the city?" Mu Xue's brows furrowed slightly, "What is that?" ”

"I don't know." Yun Zhongge thought for a moment, and then said, "I suspect that diamond-shaped spar in the bag is." ”

"How do you know?" Mu Xue asked again.

"This hedron was hidden by them on the third layer at the time, in a six-pointed starlight pillar." Yun Zhongge recalled the scene at that time and continued, "When I didn't take this hedron away, those first-level and second-level zombies were only circling around the periphery of the stone hall. After I took it, the zombies rushed into the black stone hall in a frenzy. ”

"If that's the case, it's really possible, so do you know how to use it?" Mu Xue pondered for a moment, tilted her head and asked Xiang Yunzhongge.

"I don't know, but we can try it with that six-pointed star." Yun Zhongge thought for a while and said.

"If we really can, then we won't be afraid of those zombies and monsters, and we will be able to open up a space of our own." At this time, Mu Xue's expression showed yearning.

"Hmm." Yun Zhongge nodded. Suddenly he noticed something and looked behind him.

But I saw a few people walking over there, all with long swords on their backs, and they were quickly rushing towards Yunzhongge and them.

"Someone's coming." After Yun Zhongge finished speaking, he stood up, and Mu Xue also quickly stood up when she heard the words and looked at those people.

There are a total of five people who came, three men and two women, and they all look like martial artists, and their strength seems to be good.

"What squad are you from, and why are you here?" The young man in the lead came to Yunzhongge and stopped not far in front of them, and said in a cold voice.

"Didn't you know that it was dangerous to be in the wild at night?"

"We're survivors from other cities, so I don't know what team you're talking about." Yun Zhongge said lightly. He could tell that the other party had good intentions.

"Survivors? Which city are you survivors in? The young man in the lead looked startled, obviously a little unconvinced.

"We just came from Kitahara Castle." Yun Zhongge said truthfully.

"Beiyuan City, didn't Beiyuan City fall a long time ago, and didn't the people at the gathering point of Beiyuan City also evacuate a long time ago." The young man said, "Why are you here?" ”

"We didn't live at the gathering point." Yun Zhongge said, "That's why I just walked out of Beiyuan City at this time. ”

"Captain, it's not too early, let's go back to the camp first." At this time, a woman behind the young man suddenly said, looking a little anxious.

"Hmm." The young man replied, "You two should go back to the camp with us first." We'll talk about the rest when we get to the camp. ”

Yunzhong Song wanted to refuse, but after thinking about it, he agreed.