"Here's the thing...... Zhang Yu came to Tianyi Valley to test his grandfather's blood toxins, and then Xu Mengling provoked, challenged, was forcibly left in Tianyi Valley, and finally fled again.

"Heavenly Doctor Valley has done too much in this matter, don't worry, there is a ban here, unless the patriarch of the Heavenly Doctor clan arrives, no one can break the ban. The crazy old man said.

"I heard that I can leave the Heavenly Medicine Valley from here?" Zhang Yu asked about his concern.

"Leave? It seems that there is a passage, which existed a long time ago, and not long ago two children broke in and were almost eaten by bugs. The strange old man said.

It is estimated that the strange old man said that it was Zheng Xueer and Xu Mengling not long ago, so it can be seen that the two old men have no concept of time at all.

While Zhang Yu and the others were chatting, Elder Chen led people to carefully walk through the deep valley, and every hundred meters he walked would shoot a lighting ball into the air, and the lighting ball would float in the air for a few minutes, and it would be clearly seen within a few hundred meters of the surrounding area.

Elder Chen still remembered the appearance of the giant python hovering over his head, it was extremely terrifying, and the more than ten disciples holding the Dark Soul Crossbow beside him also looked around nervously.

There was no danger along the way, and occasionally swarms of bats and a few large lizards could be seen, and those lizards with gray backs who liked the darkness of life were nailed to the ground with crossbows by nervous disciples.

"Be careful, you can't launch it without my order!" The Dark Soul Poison is particularly precious, and if you launch one, you will lose one, so Elder Chen said loudly.

"Report, the front found a ban. Suddenly, a figure in the distance rushed over, and he said loudly.

"Forbidden, everyone, stop, make a defensive formation, and wait for me to take a look. Elder Chen said, he also knows a lot about the things in the Valley of Death, according to legend, the Heavenly Doctor Clan moved here to escape the war, and I heard that it was two old-timers who took them into the Heavenly Medicine Valley, and the two old-timers volunteered to stay here, so there was a ban here.

Of course, this is just a legend, in fact, no one has seen two old-timers, they have passed hundreds of years, and I don't know if they are still there.

Ordinary people are estimated to have passed the ancient era, but the age of cultivators is generally relatively long, especially after crossing the foundation building period, as if they have passed a hurdle, and they can live to be hundreds of years old.

I haven't met the giant python along the way, and I heard that the giant python was also the first to stay here, and it was originally sealed in the ban, but I don't know what happened, and it actually ran out.

There were many places to hide in the deep valley, so Elder Chen walked forward vigilantly, constantly scanning the surroundings with his divine sense.

Sure enough, it was a prohibition, and feeling the strong energy fluctuations in front of him, Elder Chen frowned, you must know that the prohibition is not something that can be broken in casually.

He waved his hand, followed by the disciple behind him and hurriedly played a light ball, he immediately saw obvious traces of the giant python entering the ban, could it be that Zhang Yu and the giant python had both entered the ban?

"We set up camp here, everyone set up defensive formations, and sent people to search for traces of Zhang Yu and the giant python around here. Elder Chen thought for a moment and said. The subordinates nodded, turned around and went to work.

The group of Heavenly Medicine Valley disciples hurriedly set up a camp, they placed a guard formation and a defensive formation around the station, and then sprinkled medicinal powder around it to ensure that poisonous insects and poisonous snakes would not invade through the cracks in the stones. After doing all this, a team of five people began to explore the vast valley floor around them.

For several days in a row, the two old men kept instilling Zhang Yu with the knowledge they knew, which made Zhang Yu feel that he had benefited a lot.

"How have you practiced at the fourth layer of Killing Intent in the past few days?" the crazy old man suddenly asked.

"I know all the acupuncture points, but I am afraid it is a bit difficult to penetrate ten acupoints at the same time. Zhang Yu said embarrassedly.

"Difficulty? Of course there is difficulty, this fourth layer can only be learned by cultivators in the foundation building period, you are not stupid, and you understand medical skills, for you to practice diligently, of course, that suffering must be suffered. The strange old man said with a smile.

Zhang Yu nodded, he quickly remembered the acupoint, he tried to try, and he found it so difficult to know. Ten acupuncture points are all over the body, and they must be pierced at the same time to be considered successful, if one less acupuncture point is pierced, or the wrong puncture will cause qi and blood confusion, and the phenomenon of retrograde meridians will occur.

He can only penetrate five acupuncture points at the fastest speed, which is still he often uses silver needles, and he can barely do it with his talent and intelligence, if it is someone else, who is not familiar with acupuncture, he will not be able to start.

When the silver needle is pierced into the acupuncture point, the qi and blood will run according to a certain regularity, and at this time, it is necessary to be distracted and used for two purposes, which is even more difficult.

I didn't expect that I was so confident in acupuncture, but I failed!

Zhang Yu finally realized the turbulence of qi and blood, and the pain was unbearable, he lay stiffly on the ground for two hours before he squeaked his teeth and stood up.

During this period, there was a centipede, and three poisonous snakes passed in front of him, but fortunately, he was wearing ghost Jiao armor, and the ghost Jiao aura emitted made him not hurt by poisonous insects and poisonous snakes.

"Haha, the kid has finally tasted the consequences!" the two old men hid in the corner and watched the play.

"Is there no other way, or technique?" asked Zhang Yu, rubbing his aching shoulder.

"Of course, there are other ways, you can think of it yourself. The strange old man reminded.

Zhang Yu frowned when he heard this, it seems that there is really a way?

"Two keywords, guidance, control....." said the crazy old man with a smile.

"Guidance, control?" Zhang Yu scratched his head, he couldn't understand two key words at the moment.

But Zhang Yu is unwilling, he belongs to the kind of person who is very serious about doing things, and if he can't figure it out, he has to use the stupidest method to stick a needle in himself.

The valley of death was pitch black, and they could see the scenery within tens of meters with their eyes, and they would forget the passage of time if they stayed here for a long time.

The giant python was eaten by the three of them and only the skeleton remained, and they looked at the big fish in the dark river, the smallest big fish here have the length of an arm, Zhang Yu saw the way the two old men caught the fish, as long as the fish jumped up, the rattan flew like lightning, accurately piercing the gills of the big fish, and then a roll, the big fish was swept into the cave of the two old men.

Zhang Yu used the entrails of the giant python to fish faster, and after a while, he caught a lot of big fish, all of which he threw to the shore and waited to be barbecued together.

The days passed like this, after listening to the two old men talk about things every day, Zhang Yu practiced martial arts, and last time he was complained that the swordsmanship was too ugly, and the two old men also specially taught Zhang Yu a set of swordsmanship, which is said to be the most basic swordsmanship of the heavenly masters, and can give full play to the power of yin and yang.

Zhang Yu practiced and found that after practicing this set of swordsmanship, the Big Dipper Sword seemed to become a part of the body, and it could send out sword rays at any time, and it could also control the length and power of the sword rays, reducing the consumption of yin and yang qi.

It wasn't until Lin Xueyue woke up from the coma and learned about the situation from Zhang Yu that Lin Xueyue was particularly surprised.

Zhang Yu only had a preliminary understanding of the ghost envoy, and it happened that the two old men were here, so he asked by the way.

"Ghost envoy? We don't know about this, but I heard that the higher the starting point of the ghost envoy, the higher the achievements of the Heavenly Master, Zhang Sanfeng, the leader of the Heavenly Master clan back then, before the foundation building period, his ghost envoy was at the level of a ghost general. The mad old man said, pausing and muttering in a low voice, "Could it be that prophecy?"

"Old monster, do you remember that prophecy?"

"Prophecy, what prophecy?" asked the strange old man, puzzled.

"Is it the prophecy that we heard from the elder when we started cultivating?" said the crazy old man.

"I think there was a prophecy, but I don't remember. The strange old man thought for a moment and said.

"Forget it, I'll tell you when I remember it......" The crazy old man was very helpless.

At this moment, he suddenly sensed something, his face changed greatly, and he shouted loudly: "Who?"