Zhou Yang searched the entire stone cave, but did not see the name of the person who created the secret of Danshu, maybe this person did not intend to leave a name.

"Do good deeds without leaving a name, the ancients are so difficult to say this?" Zhou Yang muttered softly.

There are hundreds of Dan prescriptions in the tips, of which there are only two kinds of first-grade Dan prescriptions, four kinds of second-grade Dan prescriptions, and the others are all more than three grades.

However, to Zhou Yang's surprise, there is a pill called Huang Yandan, the effect is only a few simple notes, it should be similar to the Huiling Pill used now, the main material is actually Huang Yancao, the auxiliary material is Yanzhong grass, bell red, boar blood, and a kind of ore.

Bell red is a common low-grade spirit grass in Fang City, and only one first-grade spirit stone is only five plants, and Huangyan grass and Yanzhong grass are now weeds at all, and there are them on Daqing Mountain. The boar is also an ordinary demon beast, there are a lot of them, but they are just food for cultivators, which is simply incredible.

However, Zhou Yang thought about it, it is no wonder that most of the Dan recipes in the Dan Technique Essentials have been lost, and the ancient Dan practice materials are now unknown to people, so they will feel useless.

Blessings and misfortunes depend on them, and misfortunes and blessings lurk. A blessing in disguise is definitely a blessing in disguise! I can barely practice Huang Yandan, I don't have to worry about the materials, and I can sell it after I succeed in training. Hehe, if you sell it, you will have a spirit stone, as long as there is a spirit stone, it is easy to say anything.

Zhou Yang calculated in his heart, Hui Ling Dan has two first-grade spirit stones, and Huang Yandan's cost is about less than half a piece according to the material, and he also sells two first-grade spirit stones, so there will be several times the profit, but it is a pity that it is only to restore the yuan power and spiritual power, how good it would be if it could speed up the cultivation.

Forget it, that's not bad, he secretly scolded himself for being too greedy.

He was more interested in the spirit plant and rune array part, and the spirit plant recipe had a detailed introduction to the cultivation of various medicinal herbs, the selection and cultivation of spiritual fields, and even the methods of increasing the growth rate of medicinal herbs, which was too important to him.

The rune array should be a link in the training weapon, without the rune array, the magic weapon will have no spirituality, how can the elixir also need a rune array? This made Zhou Yang a little puzzled.

Continuing to look down, he was stunned, it turned out that the rune array in the Danshu key was mainly about the Dan medicine rune array.

The elixir is only burned with more than five grades, and its function is to prevent the loss of medicinal power and improve the absorption efficiency, that is, sealing. In addition to the above functions, the talisman array of high-level elixirs can also prevent others from taking it without authorization. In other words, even if the elixir is stolen, it can only be used if the talisman is broken.

Pills below the fifth grade are not worth the energy of a senior alchemist to write a talisman array.

In addition to the pill rune array, there are also several forbidden formations in the Danshu technique, such as the four-way formation, the five-hegemon formation, and even the teleportation formation, it seems that this alchemist also has a lot of research on other formations.

These formations require a large number of precious materials, and Zhou Yang can't understand them for a while, so he needs to slowly comprehend them later.

There are too many Danshu tips, and although he forcibly memorizes most of them, some of the words are obscure and difficult to understand, and it is quite inconvenient to memorize them.

This is not difficult for Zhou Yang, he cleaned up the bark one by one, and then used the tree technique as a pen, using carbon as ink, on the bark to record those obscure and unfamiliar words, and then carefully organize them after returning to the city.

With such a treasure, in addition to being pleasantly surprised, Zhou Yang was also thinking about the identity of the person who wrote this book, why he would leave it in the stone cave, and it was so difficult that it was also difficult to fall here? He was secretly glad that he had not wasted the Yi Dao, otherwise such a great opportunity would have passed by.

The master who left the key to Danshu did not expect that the later destined people could break this endgame, what he wanted was a tenacious inheritor who would never give up, and it was obvious that Zhou Yang had passed his test.

Ten days later, Zhou Yang felt that his injuries were almost healed, so he decided to go down the mountain.

The materials that Huang Yandan needed were all available on Daqing Mountain, and the colorless ore he had seen in Chuanyun Peak. He planned to find the ore first, go to Daqing Mountain to collect all the materials he needed, and then go back to the city to study and sort out the key techniques of Danshu, and practice Huang Yandan as soon as possible.

The key to the Danshu in the cave can't be kept, he can come, others may also come, and this technique has been passed on.

"Thank you seniors for your generous gifts!" Zhou Yang bowed deeply to the cave and thanked him solemnly. Then Yuan Li poured into the long sword, erased the ancient characters in the cave one by one, and then went out of the tree hole.

Zhou Yang held the long sword in his hand, scanned the surroundings, determined the general direction, and quickly ran forward.

Three and a half hours later, Zhou Yang gathered all the colorless ore he needed, walked all the way to the edge of the strange forest, and found that there were already mountains and dense forests around him, and jumped onto a higher mountain.

At this time, it was noon, the weather was clear, the sun was shining, and he looked far away, and vaguely saw a big mountain stretching for hundreds of miles in the southeast, which was Daqing Mountain.

After nearly a month, he is finally going out! Zhou Yang let out a sigh of relief, but before he could take a step, the alarm suddenly appeared!

He felt a chill in his back, and suddenly turned his head to look, his pupils immediately contracted sharply, but he saw a huge demon beast with sharp claws like knives, staring at him with big eyes like lanterns.

"Poisonous Ao!" Zhou Yang's scalp was numb, and cold sweat broke out, this was a demon beast that was even more fierce than the green wolf. I have no chance of winning a fight with this guy, I really just got out of Longtan and entered the tiger's den.

"Escape!" As soon as he had the idea, the poisonous ao had already rushed towards Zhou Yang like lightning. The beast parted its pincer-like claws, one clawed at his head and the other piercing his chest.

The poisonous turtle appeared too suddenly, and the speed was too fast, and if he was not careful, he would be torn apart.

At the critical moment, Zhou Chang's Xuangang Jue operated automatically, Yuan Li poured into his legs, flashing sideways at a speed twice as fast as usual, the poisonous claws rushed forward against his ears, and the claws that pierced his chest passed under his ribs, and a piece of clothing and flesh was grabbed raw, and it hurt fiercely. He was injured in one move, and the wound was bleeding profusely.

Zhou Yang ignored the pain and ran desperately, while swinging his long sword and slashing at the poisonous crow that rushed behind him. Poison Ao hit the long sword with his claws, and when it sounded, sparks shot out, and the long sword was bounced away in an instant, but Poison Ao's figure also paused slightly, Zhou Yang didn't dare to stay, and took the opportunity to withdraw and flee again.

The poisonous crow wriggled in pursuit, and the distance between it and him got closer and closer.

It didn't take long for the poisonous ao to be only a few feet away from Zhou Yang, and a strong wind rushed first. In a hurry, he quickly grabbed the fire spirit talisman from his arms, injected Yuan Li and fought backwards.

There was a "pop" sound, and a ball of flames rolled violently towards the poisonous ao, which was not in a hurry and was surrounded by flames.

After an angry roar, the poisonous turtle opened its mouth and spewed out a large amount of green poisonous mist, which collided with the flames, and the poisonous mist and flames dissipated each other, sizzling.

After a few breaths, all the flames disappeared, and at this time, Zhou Yang was more than ten zhang away from the poisonous ao. At the moment when his life was at stake, he fired all his potential, and he used the longitudinal technique to the extreme, and shot like an arrow in the dense forest ahead.

After dozens of breaths, Zhou Yang had already entered the dense forest for hundreds of zhang, leaving the poisonous ao far behind, and then he let out a long breath, and his figure gradually disappeared in the dense forest.

Nearly four hours later, Zhou Yang appeared at the foot of Daqing Mountain. By this time it was completely dark, but he was too familiar with the area, so he went up the mountain in the dark.

Finding a safe place, he took a moment to rest, briefly treated the wound, and then began to get busy again.

The cultivator's eyesight is much stronger than that of mortals, and it is not a big problem to move at night, where there is Huangyan grass, where there is grass in the rocks, and where there are many wild boars, he knows it well.

Today, Zhou Yang was not in a good mood, and the boar on the wild boar ridge was unlucky, one-on-one, and he had the upper hand.

He killed three wild boars in a row, took the blood of the wild boar with the Dan bottle he carried, put the wild boar skin and some pork in the skin bag, and began to collect the yellow grass and the grass in the rock.

It's also strange to say, when I went down the mountain, none of the higher-level demon beasts appeared, maybe the bad luck had passed, and the road was very smooth.

After taking the materials, Zhou Yang did not hesitate and quickly walked out of Daqingshan.

There were two ways back to the city, one by water and one by dry, and after a little thought, he galloped towards the official road leading to Tu Yan City.

Tuyan City is located in the northernmost part of the Hezhou continent, with a radius of hundreds of miles, more than 200,000 cultivators, and the city has been established for 10,000 years, but it is impossible to know who built it.

There were also mortals in the city, but most of them were servants, craftsmen, or mine slaves of various monastic sects, and there were also nobles from mortal kingdoms who came to the city to do business.

Tuyan City is surrounded by bad mountains on three sides, and the overall terrain is relatively flat, but there are also several small peaks in the city, and Ziyuan Peak is the highest one among them.

There is also a big river with a width of hundreds of zhang in the city, named Ziyang River, this river crosses the entire Tuyan City, and the painting boat shuttles and swims, bringing vitality to the whole city.

There is a pine forest in the south of the river, and the forest is Ziyuan Peak, which is the most intense place in the city, and the largest cultivation sect in Tuyan City, Ziyuan Sect, is located here.

Ziyuan Sect was founded by the Purple Yuan Ancestor 5,000 years ago, with 35,000 cultivators, and it is also well-known among the nearby factions, and the Purple Yuan Ancestor is a legendary figure in Tu Yan City, and his origin is said to have a legendary anecdote.