This place was the first place Zhang Daoling rested at when he came to the Cloudbrocade Mountain. Maybe it was because he found out that this place could not absorb enough Heaven and Earth aura, so he changed the place where he refined the pill to later.

And this place had been left behind by Zhang Daoling, but it had already been more than two thousand years, and the clues from when he was refining the pill had also disappeared.

This cave looked extremely ordinary, but the location indicated by the system was the first place Zhang Daoling had landed at when he was at Cloudbrocade Mountain.

The surroundings were covered in moss and weeds. Although the cave was still quite deep, it was still overrun by many vines. It was almost impossible to see it from the outside.

However, Guo Zhenyu still saw a small line of words, but because of the lack of repair, the line of words was already illegible.

"System, show me what is written here."

Guo Zhenyu said to the system.

"In the past, the heavens sent a message to us." Yun Dong and Long Teng Hu were still there, riding the crane and singing the name Dan. "Signed, Zhang Ling."

Guo Zhenyu was baffled when the system told him the content of the wall he scanned.

Although Zhang Daoling had a lot of influence in the main branch of the Ancestral Hall as the orthodox Ancestral Master, it still shouldn't leave traces of him everywhere, right?

The Longhu Mountain was such a big place, why was it that even though he came to this uninhabited area, he could still find information related to Zhang Daoling?

"System, investigate Zhang Daoling's life for me."

Guo Zhenyu seemed to have thought of something in his heart, but could not grasp onto that feeling.

"Queries complete, transfer in progress, transfer complete."

The System habitually reported this sentence.

"System, I know you can transmit my words to the people in the laboratory."

After reading the information, Guo Zhenyu took a deep breath.

"You f * cking want me to find something for you, why are you still hiding it? "Why don't you let me get the whole thing straight?"

Guo Zhenyu was very angry.

It turned out that Zhang Daoling had indeed obtained the three volumes of the Heavenly Book, but the person who imparted the function to him was not some immortal god, but a group of alien people. This group of alien people were currently observing the plants on Earth, wanting to bring back some of the medicinal plants that were suitable for them to nurture during their week.

At the same time, he was also shocked by Zhang Daoling's photographic memory. After all, on their planet, if they did not rely on technology, no one would be able to do it.

Therefore, Zhang Daoling would cultivate according to the method that the group of alien s taught him, and the method that the group of alien s taught him allowed Zhang Daoling to produce a batch of Dragon Tiger Pellets within three years!

However, it was no wonder that Guo Zhenyu was angry. These fellows, although Guo Zhenyu had to put in effort to find things for them, had concealed the matter of Zhang Daoling coming into contact with the alien.

Although Guo Zhenyu blamed Hoss and the others, Hoss and the others were truly unlucky this time.

This was not because the system did not take the initiative to tell Guo Zhenyu, but the system did not calculate this point. It was just that when Guo Zhenyu knew everything about Longhu Mountain, he forgot to report everything that had happened, and it became a foregone conclusion.

Once the situation was clear, it would be much easier to find the third item.

As the only Earth People in the Longhu Mountain that knew the most about alien s, it was most likely that Zhang Daoling would have the third target. For Guo Zhenyu, right now, as long as he could find Zhang Daoling's grave, he could basically have the third target.

"System, help me find out where Zhang Daoling's grave is."

Guo Zhenyu said to the system.

"Is the host stupid? As a Heavenly Master, how could Zhang Daoling tell others where he was buried? The historical Zhang Tianzhi, after 120 years of age, has ascended to the Immortal Realm. "

The System was puzzled by Guo Zhenyu's question.

"What did you say?"

Guo Zhenyu was obviously not satisfied with the System's reply.

"I was unable to find out where Zhang Daoling was buried for you, or could he not have died at all? One must know that the medical technology on that planet is very developed. Two thousand years ago, the earth calendar was already able to make use of the life that lasts for one thousand years. "

The System replied.

"System, let me ask you, is it because alien people keep coming to Earth, that's why there are legends about immortality and immortality around the world?"

Guo Zhenyu asked.

"Looks like the host isn't as stupid as I thought."

The System replied.

"I think you are lacking in discipline!"

Guo Zhenyu was truly infuriated by the System again.

It was already ten o'clock at night. In the deep autumn forest, fog was gradually rising. The summer heat was gradually fading away. The stream was gurgling. The only sounds that could be heard were the mournful wails of the cicadas and the wails of the night owl.

Although there were still many insects and insects in the forest, these things were nothing to Guo Zhenyu, who was wearing his armor.

What troubled Guo Zhenyu the most was the location of the third target. The system could only bring him to this place, but it had received strong signal interference. Even with several different detection methods, he was unable to detect the location of the target accurately.

The surrounding fog gradually became denser. Guo Zhenyu watched as the visibility slowly decreased, he didn't know if this place was like this all year round, or if this was the only time every year. Even though the fog was getting denser, he could still see the cave.

Wait!

Why was it that even with the thick fog, he could still see the cave clearly?

Guo Zhenyu suddenly realized the problem. He walked forward and carefully touched the inscription stone in the cave that was taken over by the vine.

"System, check it out. Why is there no fog here?"

Guo Zhenyu suddenly found some new clues.

"The investigation is complete. This place is not a completely sealed off place. The white fog can't gather here because of the air flow which is coming from behind the stone wall."

The System's words confirmed Guo Zhenyu's thoughts.

Guo Zhenyu took out his long blade from his space pocket and quickly cleaned up the vines wrapped around the stone wall. It was only then that Guo Zhenyu could clearly see the overall appearance of the stone.

Although this rock looked like the wall of this place, it was indeed only a door. If one wanted to open it, the only way was to know the mechanism behind it.

However, two thousand years had passed, and he did not know if the mechanism could still be used. Furthermore, Guo Zhenyu did not know where the mechanism was either.