This place was the first place for Zhang Daoling to settle down at Yunjin mountain. Perhaps it was later found that this place could not absorb enough aura of heaven and earth, so he changed the place of alchemy to the later place.

This place was left by Zhang Daoling, but it has been more than 2000 years, and the trace of alchemy has disappeared.

This cave looks very ordinary, but what the system tells us is that this place is Zhang Daoling's first foothold in Yunjin mountain. It was covered with moss and overgrown with weeds. Although the cave was still some deep, it had been occupied by many vines and could hardly be seen outside. However, Guo Zhenyu still saw a small line of characters in it, but because of years of disrepair, this line of characters has become illegible.

"System, show me what's written in this place." Guo Zhenyu said to the system.

"In the past, people and heaven passed on the Scriptures, and they breathed and absorbed the truth for the sake of Shangqing. Cloud moving dragon Tenghu still, riding crane singing Dan not open. Zhang Ling. "

The system told Guo Zhenyu about the contents of the cave wall that he had scanned. Guo Zhenyu only felt strange.

Although Zhang Daoling, as the founder of zhengyidao, had a great influence in this ancestral hall of zhengyidao, he could not have left his trace anywhere? In such a big place as Longhu Mountain, why can you find something related to Zhang Daoling even when you come to such a no man's land?

"System, please inquire about Zhang Daoling's life." Guo Zhenyu seems to think of something in his mind, but he feels unable to grasp this feeling.

"Query completed, transmission in progress, transfer complete." The system habitually reported this sentence.

"System, I know you can transmit what I say to people in the laboratory." After reading the materials, Guo took a deep breath.

"Why are you hiding when you want me to find something for you? Why don't you let me understand the whole thing? " Guo Zhenyu was very angry.

It turns out that Zhang Daoling was indeed given three volumes of Tianshu by heaven and man. However, it was not immortals who taught him his functions, but a group of aliens who were doing plant investigation on the earth at that time. They wanted to bring back some plants with medicinal value that were suitable for cultivation in their week. At this time, I happened to meet Zhang Daoling. At the same time, I was shocked by Zhang Daoling's unforgettable ability. After all, on their planet, if we don't rely on science and technology, I'm afraid no one can. Therefore, Zhang Daoling practiced in accordance with the method taught by the group of aliens, and the way that the group of aliens taught also enabled Zhang Daoling to practice a furnace of dragon and tiger elixir in three years!

However, it is no wonder that Guo Zhenyu is angry. These guys not only ask Guo Zhenyu to sell coolies for them, but also conceal Zhang Daoling's contact with aliens.

However, although Guo Zhenyu complained about Dr. Hoth and them, this time Dr. Huos and his colleagues really had a bad time. This is not that the system did not take the initiative to tell Guo Zhenyu, but the system did not calculate this point at all. It was just like before, it would touch the inside and outside of Longhu Mountain clearly, but forgot to report to Guo Zhenyu what had happened and became a foregone conclusion.

After the situation is clear, the third thing will be easier to find. As the only earthman on Longhu Mountain who knows the most about aliens, Zhang Daoling is most likely to hold the third target. Now for Guo Zhenyu, as long as he finds the tomb of Zhang Daoling, the third target can be basically included in his pocket.

"System, check for me where Zhang Daoling was buried." Guo Zhenyu said to the system.

"Host idiot? How could Zhang Daoling, as a Celestial Master of his generation, tell people where he was buried? In history, after the age of 120, Tianshi Zhang emerged and became an immortal. " The system is obviously puzzled by Guo Zhenyu's question.

"What do you say?" Guo Zhenyu is obviously not very satisfied with the tone of the system.

"I can't find out for you where Zhang Daoling was buried. Maybe he didn't die at all? You know, the medical technology on that planet is very advanced, and the earth has been able to use it to extend its life for a thousand years The system replied.

"System, I ask you, is it because there are constantly aliens coming to the earth that the legend of immortality is left all over the world?" Guo Zhenyu asked.

"It seems that the host is not hopelessly stupid." System channel.

"I think you just don't clean up!" Guo Zhenyu was really infuriated by the system again.

It was already ten o'clock in the night. In the mountains and forests in late autumn, some fog gradually rose. The summer heat in the day was gradually fading away. With the gurgling stream, only the cicadas and owls could be heard crying.

Although there were still many snakes, insects, rats and ants in the forest, these things were not a problem for Guo Zhenyu, who was wearing armor. Now the most troublesome thing for Guo Zhenyu is the whereabouts of the third target. The system can only bring itself to this place, but it is subject to strong signal interference. Although several detection methods have been changed, it can no longer accurately detect the target.The fog began to thicken. Guo Zhenyu watched the visibility around him gradually decrease. He didn't know whether this was the case all the year round or only this time of year. However, although the fog began to thicken, he could still see the cave.

Wait! Why is the fog so thick that you can see the cave clearly? Guo Zhenyu suddenly responded to this problem. He went forward and carefully felt the inscription stone occupied by vines in the cave.

"System, check for me. Why is there no fog in this place?" Guo Zhenyu suddenly found some new clues.

"After the inquiry, this place is not a completely sealed place. These white fog can not gather together because of the influence of air flow from behind the stone wall." The systematic words confirmed Guo Zhenyu's idea.

Guo Zhenyu took out the long knife from the space bag and cleaned the vines on the stone wall with three strokes and five divisions. At this time, Guo Zhenyu saw the whole picture of the inscription stone. Although this stone looks like the wall of this place, it is really just a door. If you want to open it, you have to know where its mechanism is. However, two thousand years have passed, and I don't know whether the organs can still be used. In addition, Guo Zhenyu doesn't know which one is.