In the Xuan cultivation realm of the Dayue Empire, all kinds of soil are diverse and have a wide range of uses.

There are Dan soil for alchemy, soil for refining, and plant soil for cultivating Xuan Plant.

The soil used by alchemists to refine a certain grade of elixir can not only perfectly store the medicinal properties of the elixir, but also slowly nourish the medicinal properties and improve the quality of the elixir.

This kind of earth rests and nourishes the soil, which is connected to the earth and soil, and is stored in the deep underground.

The same amount of earth resting and nurturing pill soil is more valuable than the ordinary Yellow Rank Pill!

At this time, Yan Xiaofei had already excavated one hundred and eight Xuan-rank high-grade pills, all of which were included in the treasure bag.

In this alchemy room on the second basement floor, there are all pits the size of bowls, all of which are bubbling with a trace of earthly gas, and they look quite mysterious.

Through Yan Xiaofei's spiritual mind, Chu Feng had already understood that ordinary sect forces did not have the land to cultivate such a good Dan soil.

The hall is able to gain a foothold among the more than a dozen Xuan cultivation forces along the coast north of the Ice Styx Sea, one is to rely on the powerful Xuan Beast to support the façade, and the other is to rely on the deep underground of their own territory, there are some places to rest and raise the Dan soil, which can refine the best Xuan Rank Upper Grade Pill.

In fact, this alchemy room on the second floor of the basement uses the entire land as the furnace base and the earth heat as the furnace fire, and hundreds of Dan furnaces have been opened.

"Take away all the pills that can be taken away, and leave not a single one, including the land rest and cultivation pill soil, you must also bring some!

In Yan Xiaofei's mind, he received this order from Chu Feng.

Next, action!

After collecting all the Xuan-rank high-grade pills, Yan Xiaofei took out six more blood-red pills and put them into the six pill pits in different directions.

These six blood-red pills were only the size of cherries, but each one was like a flame heart, burning with a dazzling light.

As soon as it was thrown into the six Dan pits, it immediately burst into flames, as if a fierce fire would ignite at any moment.

This is the Earth Evil Fire Pill.

The dazzling tiny flame was the Earth Tribulation Fire wrapped in a layer of dangui.

After the Earth Evil Tribulation Fire broke through the Dan Yi, the flames burned bigger and bigger, and with the help of the Earth Evil Qi, it would gradually trigger the Earth Fire, thus bursting out with terrifying burning power.

At that moment, there was no fire in this Dan room, but a fire catastrophe.

Yan Xiaofei immediately left the second underground floor and drifted to the first basement floor.

In a dark underground Dan room, everything was going on in an orderly manner.

The alchemy of alchemy, the furnace of the furnace.

Yan Xiaofei opened the bottle containing the breath of non-necrosis again, and his hidden body moved rapidly, so that the breath of the non-necrotic qi could be integrated into the space.

One.

Two.

Three.

Thump!

Thump!

After screwing the mouth of the bottle, he only counted three counts silently, and the sound of a plop falling to the ground sounded.

Many of the alchemists on the entire basement floor were hall masters in the middle or even late day after tomorrow, and without exception, they fell to the ground one after another and died violently due to sudden aura stopping.

"Collect the corpse first, then collect the Dan, and then do some destruction!"

Yan Xiaofei acted very quickly.

The bodies of these alchemists were quickly put into the treasure bag, and then Yan Xiaofei started to collect the pills.

The pills refined in this underground layer are all yellow-rank middle-grade and high-grade pills, which can be used by monks in the early and middle days of the day after tomorrow.

The value of such an elixir is not too high.

But if it's hundreds, or even thousands, thousands, thousands, that's a huge fortune.

Like the autumn wind sweeping away the fallen leaves, Yan Xiaofei was quick with his hands and feet, and collected the pills on the Dan rack and in the Dan box.

Then, it drifts to the ground again.

In the vast Dan room on the first floor of the ground, the red light of the flames filled the entire Dan room, and the baking power of the flames also completely distorted the space.

Feeling the qiē in this space, Chu Feng also understood that it seemed that alchemists, like refiners, were all suffering when they were beginners.

For example, in this alchemy room on this floor, if there is no certain cultivation to resist bursts of fire, how can you still do alchemy?

If you don't refine the pill, I'm afraid that you will be roasted by the fire.

And when it comes to high-level alchemists and refiners, they definitely don't have to endure the pain of this firepower, on the contrary, they can sometimes use the fire of alchemy to cultivate for themselves.

Seeing the hundreds of disciples and deacons in alchemy robes who were busy alchemy, all of them very focused, Yan Xiaofei smiled slightly, and once again opened the black bottle containing the breath of necrosis.

One by one, the breath of non-necrosis that no one could perceive was quickly released and integrated into the space.

This time, before Yan Xiaofei could count, he plopped, and these alchemy disciples fell in batches.

The rest of the work is much easier.

Quickly put away all the pills in the Dan frame and the Dan box, and at the same time collected the bodies of several deacons, Yan Xiaofei did not stay long, and immediately left this alchemy room.

The reason why he was in such a hurry was not that the time for the medicinal effect of the powerful Hidden Xuan Zhu was approaching, but that there was a rumbling sound from the ground.

When others hear it, they may wonder what it sounds like.

But Yan Xiaofei knew that this was the Earth Tribulation Fire among the six Earth Tribulation Fire Pills, which had broken through the package of the Dan Yi and had already burned on a large scale!

"I really want to see with my own eyes the spectacular scene of this Earth Evil Fire Pill triggering the fire of the earth with the help of the Earth Evil Qi! It's a pity that I don't have this opportunity now!"

Chu Feng, who was sitting upright in the Heavenly Alliance's quiet room, smiled and couldn't help but think so in his heart.

As for the pills that had been harvested and looted on the third floor of the entire Secret Pill Hall, Chu Feng was extremely satisfied.

Because Tianmeng has a Xuanyuan Five Elements Sword Tablet, with the help of the aura emitted by the Sword Tablet, it can cultivate Xuan Cultivators faster than any Yipin sect.

And at that time, all these pills harvested today would come in handy, and Chu Feng would no longer have the worry that the Heavenly Alliance was in short supply of pills.

At this time, Yan Xiaofei, who was in a stealth state, flew by the fastest speed in space like a rabbit being chased by a wolf.

The farther away from the Secret Pill Hall, the better, and the terrifying scene that caused the earth fire was something that even he couldn't imagine.

Suddenly, a powerful heat spread like a tidal wave.

Rumble!

Boom!

Boom Boom!

Immediately afterwards, the Secret Dan Hall, which was about two hundred zhang away behind him, roared several loud bangs, one after another.

Earth-shattering, like a landslide and a crack.

Rumble!

There was another loud bang, and with the eruption of the massive flames of the Secret Dan Hall, the land under Yan Xiaofei's feet snapped apart!