Lu Chen is now in a small wooden house composed of vines. Opposite him stands a beautiful girl, which is the branch of Hongmeng ancient tree.

"You are very dangerous now." Mu Sheng always has a smiling expression.

Lu Chen was a little afraid, "danger? You, you won't have to reproduce with me again! Let me state first that it's not the same thing that we humans have children and sow seeds with you..."

Mu Sheng couldn't help but cover his mouth and smile, "you want to be beautiful! I've spent too much effort to conceive Yao'er."

Lu Chen was relieved and felt a little sorry.

"What do you mean I'm dangerous now?" Lu Chen asked.

"Don't you know someone wants to deal with you?"

"There are many people to deal with me. I don't have time to care about these." Lu Chen replied.

Mu Sheng smiled and shook his head. "You have such a big heart. I'm really curious about how you live to this day. The people who want to deal with you this time are very powerful. They even invited the alien Immortal King to deal with you. If they encounter you, I'm afraid you'll be doomed!"

"Fairy king? The person of Ling Tianxian Zun?" Lu Chen frowned.

"No, Ling Tianxian Zun is a Terran. If he wants to deal with you, why should he give up his proximity and ask a foreigner to deal with you, so your enemy should be a foreigner."

Lu Chen frowns. Does he have any foreign enemies in qichongtian?

It's hard to think about this question. After all, he hasn't even seen some of his opponents, let alone know what their identity is.

However, in a word, Lu Chen now knows one thing. There are strong foreigners to deal with him.

"Can you please move the fairy king? That man's strength..."

Mu Sheng said, "you're finally enlightened. It's the so-called bright gun is easy to hide and hidden arrow is difficult to prevent. The other party has fairy king to help. Even if you can escape, what about your friends?"

Ye Fan and jiu'er are only one star after all, and their strength is still too weak.

Thinking of this, Lu Chen looked at Mu Sheng, "then... What should I do?"

Mu Sheng smiled, "in fact, most of the Xianzu site is underground!"

"I'll send you and your friends to the underground ruins later. There are few others and rich resources. Just remember two points!"

"First, this underground part is called the place of heaven and earth reversal. Here, the meridians operate in positive and negative times!"

Lu Chen stared, "ah? What does this mean?!"

Mu Sheng said, "for example, if you punch, normally, spiritual power is transmitted from the spiritual core, through the body meridians, to the arm, and finally burst out."

"But here, if you are in the" turn of heaven and earth ", you can punch normally, but if you are in the" turn of heaven and earth ", you can't punch out, and after you punch forcibly, you will directly cause damage to your spiritual core."

Lu Chen almost spit out a mouthful of old blood. Is there such a wonderful place?

"When heaven and earth are reversed, you must reverse your spiritual power before you can attack."

Lu Chen pursed his mouth and thought hard for a long time, "how can we tell whether heaven and earth are turning or upside down?"

"I don't know... There is a treasure" nine sky star "in the underground world. At that time, you will see the stars hanging in the sky. The forward rotation and reversal are determined by it. It's just that it has existed for too long and has become extremely unstable inside, so it's impossible to judge."

Lu Chen pursed his mouth and said nothing.

I always think it's better to come underground than on the ground

"Second, take your family network line. Other lines have defense against foreigners."

"Most of the war spirits just expel their own clan, but for foreigners, that is to kill them!"

"The rules of the surface also apply to the underground. In order to protect the ethnic vein, other races often shoot more organs at foreigners. Some organs can destroy the sky and the earth!"

"In addition, I suggest you don't go too deep. Although underground sites are very rich in resources, their defense is also stronger. It's OK for you to find some treasures outside. If you go deep, it's too dangerous."

Lu Chen blackened his face. "Otherwise, you'd better send us back? I think the underground seems more unreliable!"

Mu Sheng smiled like a flower. "Why, aren't you here to look for treasure? Treasure hunting is still afraid of danger. What good treasure can you find? Do you know how many rare treasures are hidden under the ground without anyone for thousands of years?"

When it comes to treasures, Lu Chen can only swallow his resentment into his stomach.

It's worth the risk for the treasure.

"Well, the medicine garden has been robbed, and now you can only bet!" Lu Chen sighed and said.

Mu Sheng smiled, "well, I'll take you underground."

Lu Chen suddenly said, "well, how's Yao'er?"

"Your sister has accepted Yao'er's identity. She will send Yao'er back to the earth to raise her... Where Yao'er can spend at least a carefree childhood..." Mu Sheng's eyes become gentle.

"Is there an entrance to the lower boundary? I want to go back and see my son."

"No." Mu Sheng replied very simply.

"Where is it? You should know that you are rooted in qichongtian!" Lu Chen asked anxiously.

"On the side of the Terran immortal realm, several known lower boundary entrances have been controlled. I'm just a branch of Hongmeng ancient tree. I know more about the Terran realm, but I don't know about the immortal realm of other races."

Seeing Lu Chen frowning and not saying a word, he seemed to be in a bad mood.

Mu Sheng went to Lu Chen, put his lips to Lu Chen's ears and said softly, "compared with the lower bound to see Yao'er, I think you'd better find out the person who is bad for you first. I don't want the child to grow up without a father!"

The next second, the vines rolled, and Lu Chen was involved in endless fairy vines.

"Oh, by the way, there's one more thing... Your sister... Very interesting..." Mu Sheng said the last sentence and retreated into the vines and disappeared.

……………………

I don't know how long later, Lu Chen, Ye Fan and jiu'er fell from "mid air" at the same time.

When the three fell heavily to the ground, they saw that they were deep in the underground world!

It is very empty here, with mountains and rivers shuttling between it. A bright huge disc overhead is like the sun and moon hanging in the sky, illuminating the whole underground world.

That should be the nine day star.

It's not much different from the earth's surface, but when you look up at the sky, you can see that the sky is a tangible rock stratum.

"My God, we are underground?" Ye Fan frowned. "It's really an underground world worthy of the name. It's almost a world of its own."

"It should be the plant that brought us down, but it's so vast here. I've never seen such an underground!" jiu'er looked around.

It's incredible that there are mountains under the ground!

"This is the underground part of the Xianzu site!" Lu Chen said. "There are more treasures here than above, and no one robbed us."

Lu Chen took out the Xianzu token while explaining.

Mu Sheng said that they must take the path of humanoid immortals, and now their position has obviously deviated.

"Return to the human network first. Don't run around. It's more dangerous here than above." Lu Chen told him.

According to the token, the three people touch back their family connections.

"This should be right under the medicine garden." Ye Fan studied it against the token.

"HMM." Lu Chen looked ahead and determined the position.

"Wait and go in first. I'll determine whether heaven and earth are turning or reversing."

Ye Fan looked at Lu Chen in surprise, "master, what is the reversal of heaven and earth?"

At this time, Ye Fan saw Lu Chen gently punch.

Then, Lu Chen flew out directly

Ye Fan and jiu'er looked frightened. What happened just now.

Lu Chen trotted back, wiping the blood from the corners of his mouth and swearing, "that madman, this is the rhythm of being played to death!"