Gu had once believed in science, but now he had no choice but to accept these words.

In medical science, even if you were to soak in a pool of blood for a few years, you would only become a corpse in the future.

But now that he looked at it in detail, it was slightly different. Not to mention the fact that Duan Chengxuan's movements and strength were out of the ordinary, almost all the martial artists in the world would fly over the roof and gallop over him. Not to mention the fact that the assassin's speed and movements were all far beyond the range of Gu Gouyan's comprehension.

The girl in black in front of him became even more confused. "Your Highness, I don't understand what you mean."

"As long as I understand it myself." Gu Danyan walked two rounds before finally stopping. He sat back down, held the book in his hands and read some more. He smiled: "If I were to give you two a way to live forever, would you be willing?"

The two of them looked at each other and shook their heads.

"You naturally won't believe me when I say that, but do you believe me when I tell you that if you use the lives of a thousand people to irrigate the pit and let you soak in it for seven days without eating or drinking, you will be able to survive until the end?" Gu Danyan lazily threw the book to the side, then picked up another book to take a closer look at it.

The two girls in black didn't say a word and only looked at her carefully.

It had already been two days since they arrived at this place. Not only did Gu Pingyan have no intention of running away, he also did not mention a single word about him going to see Duan Chengrui.

This courtyard didn't seem to be connected to the outside villages. Sometimes, people would come over to ask for water. It should be somewhere outside of the village.

Gu Danyan was flipping through the ancient books, but he could still make out from the words that they had already left Erdan.

These were the words of Navy Tide, but the furnishings in the yard were not as strict as that of Navy Tide. Similarly, the wound on her palm had already completely healed and the child in her abdomen had gradually stabilized.

It would be better to wait for a rescue if he escaped at this time.

As he thought this, Gu Danyan heard the sound of footsteps coming from outside the door. The two girls in black by his side left, and this self-proclaimed younger sister Feng Yue, Feng Xianfeng, also walked in. He half-knelt beside him and bowed: "Your Highness, I heard you discuss something with them just now."

"Do you believe that the blood of a thousand people can help one live forever?" Gu Ming didn't even raise his head as he replied. Out of the corner of his eyes, he looked at Feng Zhu. "But I also want to try. Why don't you all bring some blood over for me to try?"

"If it's an order from His Highness …"

"Just kidding." Gu Danyan closed the book and looked at the porcelain seal with a strange expression, "Do you guys have the theory of blood tying?"

"Blood test?" Feng Zhu thought about it seriously, then smiled and shook his head. "We've never met before. We can only know by relying on the recognition of father and son."

"Pour the blood of five people into the clear water and leave it to me." Gu Liuyan suddenly realized a very serious problem.

Although the porcelain seal was strange, he still sent someone to retrieve it.

Although Gu Daiyan was mentally prepared, she was still slightly shocked when she saw the blood in the water mixed together.

It turned out that her guess was not baseless. If the blood did not have a repulsive reaction, and they had internal energy that should not have existed, and their bodies could withstand such high-intensity movements, perhaps their bodies would have been different.

After such careful calculation, it could be said that she had not traveled to ancient times.

Rather, it was a parallel world where technology had yet to develop while inner strength and physical body were developing in a straight line.

"Interesting." Gu Poyan sneered. She finally realized that she was in a very different place.

If the time of two worlds was the same, but the process was different, then humans would have the same amount of time to have the same amount of wisdom. On one hand, the reason why they were able to maintain the current situation of three empires in such a rational manner was because they had the advice of the previous ancestor of the Yun clan to allow Navy Tide to stabilize his position.

"Your Highness?" The sound of the porcelain brought back her distant thoughts.

Gu Mingyan came to her senses. She suppressed the thought that this method of immortality was feasible in her heart. On the other hand, she was also shocked by this enormous variable.

If one day, there were people who discovered that they could use blood in exchange for blood to live forever, wouldn't the world be in chaos then?

Furthermore, Gu Cheng would have thought that she knew the method of immortality from the start of her life.

"Pour the blood. It smells a little fishy." Gu Xuan Yan covered her mouth and nose with a hand. She had decided to hide what she was thinking in her heart and not let anyone else know about it.

He went out to pour the blood away, and in this short span of time, he had only sent someone else to carefully guard the place. He found the person he was in contact with and told him in a low voice, "Looks like Your Highness really knows the method of immortality, it's just that the method of telling us the blood of a thousand people just now seems to be a joke. The real method is still unknown."

Listening like this, only a hoarse voice came from his throat, "Seems like this person is the key. Even though he has the method of immortality, his physical body is extremely weak. As long as Third Prince completely kills Gu Cheng, nothing can be done."

It's just that we shouldn't stay here for too long. The people from Wind Listening Pavilion are already investigating the situation. Gu Cheng and the Third Prince have even ordered you to bring some men to find the Zhu siblings. The porcelain man said with a frown, somewhat fretful.

The man chuckled a few times, then said, "I see that this Your Highness isn't someone that's easy to mess with. Let's stay here for two days first."

The porcelain man wanted to say something but hesitated. Instead of persuading him to leave, he turned back.

Gu Danyan was drinking her baby medicine, and when she saw the porcelain, her lips curled up: "The weather today is not bad, how about you find a few people to accompany me for a walk?"

"Yes." Feng Zhu nodded seriously. He glanced at Gu Danyan's expression and knew that her poison had penetrated deep into her bones. In such a situation, it was naturally impossible for him to take risks with the child in his stomach. Naturally, he agreed.

Furthermore, Gu Danyan had been chatting about some random things in the past few days, but he hadn't mentioned anything about that day's events.

Feng Zhu turned around to call for someone, but he didn't notice that Gu Pingyan had quietly put the lamp oil from yesterday into a bottle. He had also put the fire piston into his sleeve, along with several notes.

The surface of her desk was a complete mess. Who would have noticed how big the note in her hand was?

Seeing those black clothed soldiers take off their black cloaks and robes, revealing their plain and simple clothing, Gu Pingyan raised his eyebrows and said: "You guys are quite prepared. No wonder no one noticed your problems."

She would not sit still and wait for death.