When the paper was halfway opened, Xiao An saw that what was recorded in it was the information of Yiwei herbs, which was Du Zhiyun's font, which should have been copied by Du Zhiyun from other places.

When he saw the name of the herb clearly, Xiao An was stunned on the spot.

"Silver-core grass: yin-loving, alternate leaves, sessile, oval, inverted conical purple flowers, stamens silver. ”

This is an extremely precious herb, and the information about this herb was told to him by Du Zhiyun that day.

When Du Zhiyun was sorting out the prescriptions and herbal classics for Xiao An that day, Xiao An found a prescription called "Tuomai Dan" on his desk, and the main medicine of this prescription was Yinxin Cao.

Xiao An waited on the side and had nothing to do, so he picked up the pill prescription of the Tuomai list and looked at it, Du Zhiyun saw that Xiao An was very interested in this prescription, so he talked about this prescription.

It is said that in ancient times, Tuomai Dan was an elixir that was comparable to the "heaven-level" spiritual materials that improved the cultivation physique, and occupied a very important position among the important spiritual materials in ancient times.

This elixir can greatly broaden the monk's meridians, and after taking this elixir, the monk can absorb more spiritual energy when refining qi, which can greatly increase the cultivation speed. The sooner the monk takes the Tuomai Pill, the better its effect will be, but this pill has certain requirements for the strength of the monk's own meridians, and the minimum requirement for taking this pill is the ninth layer of qi refining.

At that time, the strength of the human race could compete with the demon race, and this Wei Tuomai Dan played an important role in it.

It's a pity that in the disaster that almost destroyed the entire world, the Holy Land of the Terran suffered a devastating blow, and the house leak happened to rain overnight, and the main medicine of the Tuomai Dan, the Silver Core Grass, was also extinct in this catastrophe, and since then this Tuomai Dan has become a legend, and the Terran has since declined.

Originally, the information about the Tuomai Pill and the Silver Core Grass was only recorded in a few super forces of the Terran Race, and even the details of this Danfang were not available in the several major demon clans. However, in the last hundred years, the information of the Tuomai Pill and the Silver Core Grass has suddenly spread among the alchemists of the Terran Foundation Building Stage and above, but people outside this circle still have no idea.

It turns out that in the past thousand years, there have been several sporadic Silver Core Grass in this world, and every time Silver Core Grass appears, it will trigger some super forces of the Terran race to scramble. It is said that the last time I was snatching the Silver Core Grass, the forces that lost the robbery were furious and announced the Silver Core Grass and the Dan Fang for refining the Tuomai Dan.

Although the silver-core grass has reappeared, this herb has no seeds, and is completely innate. This herb loses its activity after picking, and it cannot be transplanted to the elixir garden to continue cultivating, and it must be refined into an elixir within half a year of picking, otherwise it will lose all its medicinal properties, and it is a thing that can be encountered but not sought.

After Senior Brother Du got the information about Danfang and Yinxin Grass from his master, he only copied it just in case.

After Xiao An finished reading the introduction of the herb, he unfolded the second half of the paper, which outlined the shape of the silver core grass. After Xiao An saw the shape of the silver core grass, the whole person was stunned.

This picture is very familiar, he must have seen it somewhere, but Xiao An couldn't remember when and where he saw it for a while.

After thinking for a while, Xiao An still had no clue, so he simply paced in the room.

After a long while, Xiao An's face suddenly showed a look of sudden realization, and he hurriedly returned to his desk and took out a few jade boxes from the space beads.

These jade boxes were the companion demon grass that Xiao An got from the wind wolf's lair when he hunted the wind wolf with Pang Boxiong. These companion demon grasses were picked by Pang Boxiong's younger brother and given to him, and he didn't look at them carefully, so Xiao An didn't think of these companion demon grasses for a while.

Xiao An opened the jade box one by one, and finally found a medicinal herb that was the same as the picture, judging from the information transcribed by Du Zhiyun, this medicinal herb was nearly seventy years old. But this is a companion demon grass, and it is good to be able to maintain the medicinal properties for forty years after removing the demon qi, I don't know if the elixir refined from this will have an effect on me.

If this Silver Core Grass can retain its medicinal properties for fifty years, it will definitely have an effect on itself, and if you take this pill with the cultivation of the seventh layer of Qi refining, then wouldn't the future be bright?

Xiao An shook his head secretly, feeling that he was a little bit of an inch, and hurriedly put aside the delusions in his heart.

Xiao An carefully took this herb out of the jade box and put it in his hand to examine it carefully. The examination didn't take long, Xiao An's eyes suddenly widened in surprise, and his mouth was wide open, so that he could stuff a goose egg.

What's going on, hell is it? Or is there something wrong with this herb? Xiao An felt that today's events were getting more and more bizarre.

The silver core grass in Xiao An's hand grew very well, and the medicinal effect contained in the herb was also extremely strong, exactly the same as the information recorded in the handmade paper.

Xiao An remembered that when he first got these herbs, the surface of the herbs was filled with a strong demonic aura. But now there is only a faint demonic aura on the surface of the herbs, as if the herbs have been in contact with the demon beasts for a short time, and the demonic aura impregnated with the herbs is still very small.

This herb was dug up by Xiao An personally watching Pang Boxiong's younger brother dig it out of the wind wolf's lair, and after Pang Boxiong put it in the jade box, he directly handed it to him, and the whole process was in his sight. When Pang Boxiong and the others left, he only opened the jade box and looked at it, without carefully examining the herbs, but it was certain that these herbs were all filled with a strong demonic aura at that time.

But now there is only a faint demonic aura on the surface of this silver core grass, and the medicinal properties have not been affected at all. If he didn't know that this herb could not be cultivated in the soil once it was picked, Xiao An would have thought that it was a companion demon grass that had been raised in the elixir garden for another two or three years.

Could it be that there was something wrong with the jade box, which caused all the demonic energy in the herbs to be lost? But if that was the case, the medicinal properties in the herbs would also be lost, which was inconsistent with the current situation of the silver core grass.

Although thinking like this, Xiao An still picked up the jade box where the silver core grass was stored. The jade box where the herbs are stored is also a magic weapon, and the herbs stored in it will deal with a state similar to the "frozen" in the mortal world, which can not only prevent the loss of medicinal properties, but also the demonic energy in the accompanying demon grass will not change in the slightest.

After confirming that there was no problem with the jade box, Xiao An scratched his head, could it be that the silver core grass was different from other herbs, and it could transform demonic qi by itself?

This is an inference that Xiao An himself does not believe, and it is easy to confirm whether this is the case, as long as he confirms a few herbs that were put into the space bead with this that day.

Xiao An hurriedly brought all the other demon grasses he got from the wind wolf's lair to his eyes for a closer inspection, but found that the demonic aura in these demon grasses was also much lighter, and the situation was completely the same as the silver core grass.

"Could it be that the space bead has worked?" Xiao arranged that in addition to other factors, only the space bead remained. And as soon as this idea appeared, Xiao Anxin recognized it very much, after all, the space bead has the effect of purifying refining materials and eliminating evil qi.

If it is really the role of the space beads, it means that the purification of the demonic energy in the demon grass is reproducible, and even repeatable. Thinking of this, Xiao An's breathing was a little thicker, because it meant a huge fortune.

Taking the silver core grass as an example, the original herb has a medicinal age of nearly 70 years, and after removing the demonic qi by ordinary means, the medicinal properties are similar to that of the medicinal herb that grows for 30 years at most.

And after being treated by the space beads, although it still contains some demonic qi, after removing the demonic qi in the same way, it can at least be similar to the medicinal herbs of more than forty years old, if the method of eliminating demonic qi is clever, it can be used to refine the Tuodan single of the ninth layer of qi refining.

This means that each fifty-year-old demon grass can earn about ten spirit stones after being processed with space beads. Thinking of this, Xiao An seemed to see countless spirit stones flying towards him, and he couldn't close his mouth with a smile.

Xiao An wiped the saliva from the corner of his mouth with his sleeve, put all the few plants of the twenty-year-old demon grass he bought today into the space beads, and then climbed into bed and dreamed beautifully.

Three days later, the demonic energy in these demon herbs had indeed disappeared a lot, and it did not damage the medicinal properties of the herbs in the slightest. Xiao An, who was attentive, also noticed that there were eight low-level spirit stones in the space bead that had turned into powder.

Seeing this result, Xiao An was very happy, not only did he have hope for refining the Tuomai Pill of the ninth layer of qi refining, but he also had another way to make money.

While waiting, Xiao An looked at all the herbs in the remaining pills, although it still needed to be consolidated many times to fully grasp the characteristics of these herbs, but it would not be a big problem to use them to buy herbs.

After determining the effect of the space bead on the herb, Xiao An was even more excited to go to Fang City to find the young man, wanting to confirm whether he really had a large amount of companion demon grass in his hand. However, Xiao An searched for four or five days in this fang market and did not find it, Xiao An almost asked the other stall owners who sold medicinal herbs, and everyone said that they did not know this person.

These monks, who often sell herbs here, must know who in the market is a liar. These people knew in their hearts that since a young boy on the other side dared to come here to deceive people, there must be someone behind him.

At the same time, these people are also very shrewd, although Xiao An did not show any intention of making trouble with the other party, but these people still did not dare to reveal the slightest information. After all, these people live here all the time, and they have to think about themselves and their families.

Xiao An can't say to these people: I was deceived by this person, but I have no malice in looking for this person now.

If you really say that, others will have to believe it.

Xiao An didn't notice that when he was inquiring about the young man, a young monk who had just walked nearby also heard clearly. The man looked thoughtful, and then hurriedly left the city, never to be seen again.

Xiao An's good luck seemed to have run out all at once, and he turned the entire Fang City around, but he didn't receive a fifty-year-old herb, and Xiao An's mood became quite bad.

"Fellow Daoist, do you know where you can easily buy some forty or fifty-year-old herbs? Xiao An bought a few herbs of twenty or thirty years old from an old man's stall, and asked seemingly unintentionally before leaving.