While talking to Shi Weiming, Meng Zhang took out a black ginseng from the spirit box he carried with him.

This plant of Scrophularia has been heated for more than 500 years, which is very rare. Most importantly, in Shi Weiming's book on the recipe for building Jidan to Meng Zhang, it is clearly recorded that Xuanshen, which has a heat of more than 500 years, is an auxiliary medicine for refining Jidan.

Last time, Meng Zhang and Jue Ying picked a large number of black ginseng in the purple gold sect Friar's cave. Jueying was too troublesome. Neither she nor master ye ye knew spirit planting and alchemy, so she gave all these Xuanshen to Meng Zhang.

After Meng Zhang returned to the Taiyi gate, he transplanted all the Xuanshen into the Taiyi gate.

Over the years, all these Scrophularia have grown quietly in the spirit field. Except that Yang Xueyi occasionally took two shallow ones to cook soup, they were basically unused.

After reading the book brought by Shi Weiming last time, Meng Zhang knew that the radix Scrophulariae with a heat of more than 500 years was an auxiliary medicine for refining and building Jidan.

Seeing Meng Zhang take out the Scrophularia, Shi Weiming's face changed greatly. His originally chilly expression was swept away. He looked a little excited.

Meng Zhang saw this and then handed him the plant.

Shi Weiming carefully took over the Scrophularia and carefully checked it.

"Yes, yes, it grows naturally. It is not forced to ripen with aura. It can be used to refine and build Jidan."

"How much do you have? How much do you have? I'll take it all at a high price." Shi Weiming said eagerly.

Meng Zhang did not answer, but smiled without saying anything.

Seeing this, Shi Weiming became calm.

"Come on, what conditions do you want to trade?"

"I used two Xuanshen plants with a heat of more than 500 years in exchange for elder Gu Tanghai's hand to help entangle the foundation period elder of Qingzhu mountain." Meng Zhang put forward the condition.

"Two Scrophularia are far from enough. Elder Gu Tanghai is a master in the middle of foundation construction, and he still deals with green bamboo mountain." Shi Weiming shook his head.

Next, they had a fierce bargain. You came and I went for a long time before they finally reached an agreement.

Meng Zhang offered four black ginseng plants with a heat of more than 500 years in exchange for Gu Tanghai's hand to help entangle the foundation period elder of Qingzhu mountain.

After reaching the agreement, Shi Weiming kept beating around the bush with a flattering smile, asking how many miraculous drugs Meng Zhang had in his hand.

Meng Zhang didn't pick many Scrophularia from the purple gold sect monk's cave, especially those with a heat of more than 500 years.

This time, if he didn't have to, he wouldn't take out these Xuanshen to trade.

Casually perfunctory, Shi Weiming said a few words, and Meng Zhang took the initiative to switch off the topic.

After agreeing contact information with Shi Weiming, Meng Zhang returned to taiyimen to prepare for the next action against Qingzhu mountain.

More than a month later, the mirage desert, located more than 4000 miles east of huojingfang City, has long become very lively.

Mirage desert is a special desert in the endless sand sea.

The weather here is unpredictable, the sand dunes move frequently, and the terrain is not fixed. Moreover, mirages and other illusions often appear in the desert.

Every hundred years or so, various illusions appear more and more frequently in the mirage desert, especially when huge palaces begin to appear in the center of the desert, which means that the mirage secret land will be opened.

When these palaces first appeared, they were all illusory illusions, composed of clouds and smoke. The shape of the palace is constantly changing and its position is constantly moving.

Over time, these visions will slowly become real. Everything in the palace feels real.

Halls, pavilions, pavilions, flowers and leaves, all seem to be true. Ordinary practitioners in the period of refining Qi can't tell at all.

This process of changing from virtual to real and from illusion to reality takes no fixed time.

It takes a month or two for a short time and three or five months for a long time. Anyway, the time is uncertain. It can be long or short.

Therefore, whenever the Centennial period is approaching, the major forces in the endless sand sea will send monks to stay near the mirage desert for a long time. Once the huge palaces begin to appear, they will immediately notify the major forces so as not to miss the opening period of the mirage secret land.

More than a month ago, green bamboo mountain was ready to attack taiyimen.

But in the mirage desert, a huge palace group suddenly appeared. Moreover, according to the calculation of experienced monks, the time for the palace group to change from virtual to real is relatively short, and it may only take more than a month.

Therefore, Qingzhu mountain had to give up attacking Taiyi gate temporarily and focus on the mirage secret place first.

Anyway, Taiyi gate can't run there. First deal with the secret place, and then clean up Taiyi gate slowly.

The mirage secret place is too important to Qingzhu mountain. You can't be distracted.

In the mirage desert sky, there was a thunderous roar. The huge palace complex in the center of the desert has become more and more real.

Finally, the roar stopped, the huge palaces no longer changed and moved, and completely stabilized. The huge palace buildings look unreal. They are clearly living palaces.

Led by the foundation period friars of major religious forces, a large number of religious practitioners began to move from the edge of the mirage desert to the palace group in the center.

When it was close to the palace group, all the friars in the foundation period stopped one after another. Only the friars in the Qi refining period kept moving forward.

All the monks in the foundation period did not dare to get too close to the palace group. Because there is a mysterious force in the palace group, which will actively repel the nearby friars in the foundation period.

As for the golden elixir immortal, anyway, the golden elixir immortal of Feihong sect has never been close to the mirage desert, and I don't know why.

After entering the palace group, all the monks in the Qi refining period will enter the mirage secret realm through the inner portal.

In addition to the alchemy friars of the major forces, many disguised and sneaky friars entered the palace group from different directions.

Friar Fei hongzong ignored these guys during the foundation period.

The more human friars enter the mirage, the greater the threat to monsters. All kinds of miraculous medicines picked by most friars finally fell into the hands of Feihong sect through various ways.

Those refining friars can stay in the mirage for a month. If you haven't come out for more than a month, you have to wait until the next hundred years, and the mirage secret land opens again.

Of course, it's hard to say whether the monks in the Qi refining period can live to that time.

The longest theoretical life span of monks in the period of Qi refining is two Jiazi, that is, 120 years. But most of the monks in the period of Qi refining can't live to be 100 years old.