"Yo he! Boy, that's good! Dare to scare the Demon King, I really don't know who gave you the courage. The old man said with a smile.

I just felt that his tone made me very unhappy, so I scolded him. Besides, senior, aren't you here? No matter what, you won't see me die! Lu Dong continued.

"It's kind of interesting, you kid is not high, but you are very courageous. Promising future, I'm optimistic about you. The old man said with a smile.

"I still rely on my seniors to take care of me!" Lu Dong continued.

"Well, that's good! You've reached the initial level of the True God Realm, and your current combat power should be able to single-handedly challenge the peak of the True God Realm, right? The old man continued.

"Well, I don't know. It should be able to fight with the mid-level of the True God Realm. Lu Dong said modestly.

"Okay, as long as you don't fall in the future war, then you can get in touch with the higher world." The old survivor said with a smile.

"The higher world? What does that mean? Lu Dong asked strangely.

"Literally, it's not good for you to know too much now. Grow as soon as possible! The future still needs you to guard. After the old man finished speaking, he left the sky above the stone forest, and the rest of the patriarch elders also left the stone forest and returned to their own legions.

"The higher world? Is it really like what scientists once said, the dimensional world? 1D, 2D, 3D, 4D? Lu Dong couldn't help but think of the hypothesis put forward by scientists in the past, that human beings are in a four-dimensional space. Is there a space of five dimensions or more?

Lu Dong wanted to fly to his headquarters, and Luo Yan and the others were anxiously waiting for Lu Dong at the gate of the headquarters.

"How? Is there anything uncomfortable? Wu Ming asked at Lu Dong.

"No, except for the severe pain at first. Now there is no feeling of discomfort, just like ordinary cultivation. Lu Dong shook his head and said.

"What a freak, the bursting demonic energy can be absorbed. Can you absorb any kind of energy? Luo said sourly.

"Hehe, are you envious, jealous, hateful?" Lu Dong said with a smile.

"Alright, no! The demonic energy vortex of the demon clan has failed, and I wonder if they will have other moths. Luo said with a frown.

"Let's wait and see! There's no good way to do it now. Lu Dong said with a sigh.

"That's all there is to it!" Luo Yan continued.

"What about the old and undead seniors?" Lu Dong asked at Wu Ming.

"Rest in the back tent, do you want me to call him!" Wu Ming continued.

"No, let's take a look first! Order the scout team to keep an eye on the movements in the stone forest, and the giant artillery force is ready to strike at all times. Lu Dong said to Luo Yan.

"Yes, I'll arrange it!" Luo Mad answered and walked out.

"I'll go back for a while, and you pay attention. Notify me of any situation. Lu Dong said to Wu Ming.

"Are you going back to see Xin'er?" Wu Ming said with a smile.

"Well, no one knows what the demons are doing. I want to send Xin'er somewhere else so that I don't get caught off guard. Lu Dong continued.

"Where do you want to send her? Europe? Or the Americas? I don't think she'll agree, and maybe she'll come to the front with you. Wu Ming continued.

"I feel that way too, so I want to send her away." Lu Dong continued.

"But what if she doesn't go? What are you going to do? Wu Ming continued.

"If he doesn't go, stay with me! There's no good way to do it for the time being! Lu Dong continued.

"Well, then there you go! I'll let you know if there's a situation here! Wu Ming continued.

Lu Dong spread his wings and flew towards Starfire City.

Half a day later, Lu Dong landed at the door of the hall of the City Lord's Mansion. Slowly walked into the hall of the City Lord's Mansion, and saw Wu Xin sitting in Lu Dong's position in a daze.

"Xin'er, what are you doing?" Lu Dong asked softly.

"Ahh Brother Lu Dong, you're back! What do you think? Did the demons fight back? Wu Xin asked innocently.

"Huh...... The demons haven't appeared yet, I'm coming back to see you. Lu Dong said helplessly.

"Oh! That's right, Brother Lu Dong! Something seems to be wrong. Wu Xin suddenly thought that something was wrong with Xiao Nannan recently.

"Oh! Where is she? Lu Dong asked anxiously.

"In her own room, and she hasn't been out in days." Wu Xin continued.

"I'll go see her!" After Lu Dong finished speaking, he quickly walked to Xiao Nannan's room.

"Tuk Tuk" Lu Dong came to the door of Xiao Nannan's room and knocked on the door.

"Bang Dang" Xiao Nan opened the door, but did not come out.

"What's wrong with you?" Lu Dong walked in and asked Xiao Nannan.

"Brother, you're here!" Xiao Nannan said weakly.

"What the hell is wrong with you? Why are you so weak? Lu Dong asked anxiously.

"Not much, I just feel weak. I want to sleep, but I can't. Xiao Nannan said weakly.

"Xin'er, come in and have a look." Lu Dong shouted outside the door.

"Brother Lu Dong, what's wrong?" Wu Xin walked in and asked.

"What the hell is going on? How can you be so weak? Lu Dong continued.

"Good!" After listening to this, Wu Xin quickly shook Xiao Nannan's hand. A powerful wood-based energy slowly poured into Xiao Nannan's body.

"Uh-huh!" The little girl snorted and fell on the bed.

"Hello! Whoa! How are you? Lu Dong shouted anxiously.

"Brother Lu Dong, my energy conflicts with Nannan's energy. I can't detect it, and now I'm in shock. Wu Xin continued.

"What then? I don't have a corpse physician here. Lu Dong continued.

"Maybe there are no corpse doctors in the world, right?" Wu Xin continued.

"What then? You can't let me watch her do this! There must be a way, I'll think again. Lu Dongkou said without hesitation.

"Maybe you can ask the old surviving seniors?" Wu Xin continued.

"That's right, Elder Yang must know what's wrong with her. He must have a way, I'll go find him. After Lu Dong finished speaking, he ran to the door with two wings, and flew towards the stone forest.

Lu Dong flew with all his might, completely unaware that the wings he was urging with all his strength had changed color. The fleshy wings covered with black scales had slowly turned golden at this time, and many complex runes appeared on them.

After half a ring, Lu Dong came to the tent where the old man died.

"Elder Yang, Elder Yang!" Lu Dong shouted anxiously.

"Panic, what's the matter?" The old man walked out and asked.

"Old Yang, I don't know what's wrong. The whole person is weak, and now he is in shock. Can you help me find out what's going on with her? After Lu Dong finished speaking, he looked at the old man expectantly.

"Oh! Weak, in shock? It stands to reason that this won't happen to the corpses, right? Yang Yi said with a frown.

"So what happened to her?" Lu Dong then asked.

"Could it be...... Take me to see it. The old survivor seemed to have thought of something, and pulled Lu Dong back to Spark City in an instant.

"Brother Lu Dong, Elder Yang, you are here!" Wu Xin walked out and said.

"How's it going?" Lu Dong then asked.

"Still like that, unconscious." Wu Xin continued.

"I'll see!" The old man walked past the two of them and put his hand on Xiao Nannan's arm.

After half a ring, the old man let go of the hand on the little girl's hand.

"How? Old Yang, what's wrong with her? Lu Dong asked anxiously.

"She's fine, it's just that she's going to advance. However, there was no environment or energy suitable for her advancement. The old man continued.

"Then I don't know what kind of environment and energy she can advance?" Lu Dong then asked.

"It takes a lot of corpse gas, and the damp place is suitable for her to advance." The old man continued.

"There shouldn't be a place like this on Earth now, right? After all, so long has passed since the end of the world, and those corpses have long since become white bones. Lu Dong said with a frown.

"Who said no, won't there be soon?" The old man continued.

"Oh! Please let me know! Lu Dong continued.

"Why are you so stupid? Isn't the Stone Forest a good environment? The old man continued.

"You mean the battlefield?" Lu Dong then asked.

"Aside from the battlefield, where else do you think is the most suitable?" The old man then asked rhetorically.

"But the battlefield is too dangerous, and how can she go without any combat power now?" Lu Dong continued.

"Arrange for a squad of sappers to dig a secret room under the battlefield. Wouldn't it be okay to put this little guy in? The old man continued.

"What if we are defeated and evacuate there? When the time comes, after she completes her advancement, she will encounter many powerful high-level demons. Lu Dong said worriedly.

"Then let her wait like this! I can't help it! The old man said helplessly.

"You make me think!" Lu Dong continued.

"There's not much time, you have to make a decision as soon as possible. If the advancement time is delayed, then there is a good chance that she will die. The old man continued.

"So serious?" Lu Dong asked in surprise.

"That's right, the Corpse Clan is not like us. If they don't advance, they won't be able to withstand the backlash of the virus, and they will eventually become walking corpses without any consciousness. The old man continued.

"Oh well! I'll arrange it right away! After Lu Dong finished speaking, he opened his meat wings, and the golden light flashed in an instant.

"Yo, boy! The wings have turned golden, and it seems that this time it is a big gain? The old man said with a smile.

"Well, how did it turn golden. I think it's black, huh? Lu Dong looked at the golden wings that were slowly flapping behind his back and said suspiciously.

"Don't worry, it's normal. When you're a little stronger later, it'll change color. The old man continued.

"Uh, do my wings have ranks?" Lu Dong asked suspiciously.

"That's right, there are tiers of wings. However, this is not a question of energy level, but of blood level. It shows that you are no longer a simple human bloodline now! The old man continued.