Ye Fan nodded, and then the other party took out an earthy yellow stone and pressed it on top of the storage bag, and then the storage bag became dim, this kind of small stone that seals the storage bag, if Ye Fan agrees, it will not work, and then he used a piece of copper to irradiate it up and down, and nodded, indicating that there is no problem.

Then the guard at the door let Ye Fan inside.

In fact, if Ye Fan wants to cheat, he can buy some pills and put them in the space bag, in this case, it is impossible to find out at all, but Ye Fan has his own bottom line, and he will not do this kind of thing.

After Ye Fan passed some inspection, he finally entered this Dan room, and saw that it was empty, there was nothing, the most obvious thing was that there were ten holes in the wall, and he didn't know what would happen after the meeting started.

As time passed, one young alchemist after another entered the Dan Chamber.

And on the fourth floor of this attic, there are layers of prohibitions, not open to the public at all, outside a tightly guarded room, several old men sit here cross-legged, one of the old men in the middle said: "This time the big competition, it is about to start again, this is seventeen times, there are really not many opportunities to give us, the few rare herbs that have been designated have been consumed, and now it is difficult to obtain them, and I am afraid that the ancient books will be completely damaged after opening one or two times." ”

The rest of the people also sighed, several of them were actually the alchemists of the alchemists of the Danshi Hall of the Tianyuan Sect of Zhongzhou, and their status was naturally extremely noble, and the person who spoke just now was the elder of the Danshi Palace, the real alchemist of the late stage of the fifth grade.

This time, on the surface, the alchemy conference was held by the Vermilion Bird Country, but if it was true, it was actually this Elder Tian of the Tianyuan Sect's Dan Master Hall, because it was inconvenient for him to reveal his identity, so he made this decision and communicated with the sect master of the Vermilion Bird Sect before it was held.

The first person couldn't help but speak: "Elder Tian, since this ancient book is so precious, as long as Elder Tian holds a conference in the Tianyuan Holy Sect, there are so many young alchemists there, if you want to really refine ten kinds of pills with the least amount of herbs, the chance of success will definitely be much greater than here, why should the elder be willing to seek the near and far." ”

Without waiting for Tian Changlong to answer, another old man spoke: "This thing belongs to our West Pavilion, if it is announced, then the other three pavilions will not be moved?" Now we only have three elders in the West Pavilion, and the strength is the weakest among the four pavilions, once this suspected ancient Danfang solitary book is announced, I am afraid that when the time comes, even if it is opened, it will be divided by the other three pavilions, this thing was brought back by the pavilion master at the cost of his life, even if it is destroyed, it will not be left to them." ”

Ye Fan was already in the Dan room at this time, three hours passed, and after a loud bell, Dabi was officially opened

Then the door of the Dan room was completely closed, and only the light on the ten holes could be opened again.

Then, from a square table in the distance, a bright light emitted, and ten kinds of medicinal herbs appeared.

Ye Fan sighed in admiration: "What a small spatial shifting formation." ”

Looking at those herbs, he secretly breathed a sigh of relief, fortunately, these herbs were all known by himself.

However, as soon as these herbs were recalled in his mind, he found that none of the pills were in line with the ten herbs in front of him, and if he was an ordinary alchemist, he would naturally continue to take out the herbs in the back until there was a pill that he could refine.

However, Ye Fan did not do this.

After a previous purchase, although I only learned some messy basic Dan prescriptions of one and two products, it is better than nothing, which I just learned a few days ago.

But Ye Fan had heard the master say before that in the step of alchemy, you can't just look at the composition of the pill, there are many herbs, in fact, they have similar effects, so they can be substituted for each other, but when using alternative herbs, the effect will generally be worse than the original pill recommended above, and the difficulty of alchemy will increase a lot.

Therefore, even if you use alternative herbs for alchemy, you will generally only choose to replace one or two of them, but if you do so, the consequences are extremely troublesome, and the things involved are extremely complex, far beyond what seems on the surface.

There are a total of ten herbs in front of you, and a pill needs to use a main material, and more than two auxiliary materials, which is already the simplest refining, and the refining is only the worst one-grade pill, and if the main material is used as a substitute herb, the difficulty will immediately increase several times, so it is generally replaced by auxiliary herbs.

This is also why, the best results of the sixteenth young alchemist Danbi also need thirty-two herbs to refine ten different pills, but that one already belongs to the young generation of alchemists.

And the average third-grade alchemist needs at least seventy or eighty kinds to do it, and even a fourth-grade alchemist needs forty or fifty kinds.

Ye Fan was different, after he saw these herbs, in his mind, he quickly calculated how to find alternative herbs, and found that eight of the ten plants in front of him could do it, and then after a little classification, he began to refine the first pill.

The first pill that Ye Fan is refining now is the basic pill, the Breaking Qing Pill is the most basic pill, and the effect is to refresh the mind, that's all, and his reliance, the first is his alchemy almost 100% chance of success, and the second is his Dan furnace.

Generally speaking, it is very simple to choose a first-order herb to break the grass, plus two auxiliary materials

It can be refined.

But the herbs in front of Ye Fan's eyes, the worst were all second-order, but after some analysis, he came to a conclusion, combined three of the herbs, and threw them into the Nine Palace Dan Furnace.

Then he began to run the three-turn alchemy method for refining.

In less than an hour, the Dan furnace opened, and an unknown pill appeared inside, obviously this thing is not a broken Qing Dan, but there is no regulation in this Dabi, if it is required, there is only one point, that is, with the least amount of herbs, ten different pills can be refined, so as long as the pill is refined.

Obviously, I made a mistake and succeeded.

Later, after Ye Fan succeeded in refining for the first time, he became more confident, and put the other two that he had just researched into it one by one, and it didn't take long for the Dan furnace to open and succeed again.

Two beads have been lit at this moment.

Now that he has started refining the third pill, Ye Fan only chose two from the remaining four, and there are two other herbs, which are completely opposite, and the medicinal properties of the remaining two herbs are completely conflicting, and it is impossible to refine them successfully, but at this time, a strange idea appeared in his mind.

He suddenly thought, "Could it be that this is the real test, and its requirement is actually to refine two herbs with completely different attributes into a pill, if this is the case, I will not necessarily fail if I use the three-turn alchemy method, if it succeeds, this time I may not have no chance." ”

Ye Fan's idea was naturally different from ordinary people, others first took out at least twenty kinds of herbs and then matched them with each other, and then tried one or two, he actually directly started refining the ten that appeared.

At this moment, the two medicinal materials with completely different properties began to react in the Nine Palace Dan Furnace, if they were replaced by other Dan Furnaces, they would have been destroyed long ago, but the wonders of the Nine Palace Dan Furnace were finally truly reflected.

It is worthy of being the Dan furnace of alchemy, a treasure that even the monks of the third realm will be tempted by, how can it be so simple, no matter what herbs, put them into the Nine Palace Dan Furnace, the medicinal properties will be slowly neutralized in an instant, even if they are two herbs with diametrically opposite medicinal properties, they can be fused a little bit.

At this time, about two hours later, an unusually strange incense wafted out.

Ye Fan was so close, he naturally smelled it, and his face immediately became happy, if there is a danxiang, according to the usual experience, it is generally successfully refined into an elixir, and there are three danwen patterns before they appear.

After this danxiang escaped, Ye Fan didn't hesitate too much, and directly opened the Dan furnace, and an unknown two-color pill appeared in the middle.

At the moment when this elixir appeared, those old men on the fourth layer, in the circle in the middle where they were surrounding, a pale yellow ancient book suddenly shook.