After dozens of sentry posts and various identity verifications, Li Yunfei came to the underground vault of the Alchemy Research Institute.

This heavily guarded underground vault is located nearly fifty meters underground, making it a fortified bunker. The surrounding walls were all solidified by the solidification technique, and at the same time, iron juice was poured into a huge iron lump.

Accompanied by Bohr and Dirac, Li Yunfei finally stood at the door of the underground vault.

As far as the eye can see, huge pieces of iron ore and pyrocaneous copper ore are piled up there like small mountains, and the silver ingots of Mithril that have been crudely smelted form small pyramids. In addition to this, there are also a large number of magic crystals of various colors and so on.

The secret vault of this alchemy research institute is full of all kinds of rare materials!

These are piled up on the side, obviously the usual consumption is relatively large, and the stock is relatively large, and further on, there are small compartments, these compartments are placed in a variety of delicate wooden shelves, on the shelves are placed in twos and threes.

There are all kinds of mineral crystals, animal skin plants, etc., and there are many Li Yunfei who can't name them at all, among which there are two soul-burning crystals the size of a human head, which are placed in a cabinet made of special alloys.

The further you went inside, the fewer cubicles there became, and the less stuff there was.

Soon, he saw the same material he was familiar with again—a finger-sized star iron in a crystal box!

Such a small star iron is treasured in this crystal box, and it is obvious that this star iron is also an extremely precious thing for the Alchemy Research Institute.

"That's the Ghost Crystal! And the Flame Stone! Look!" Old Burn's voice sounded again, with a hint of excitement.

Li Yunfei looked up and saw that in a small compartment next to him, dozens of crystals the size of corn kernels were slowly rotating, these crystals looked white, but from time to time there were some red bloodshot flashes, like teeth that had just been extracted.

Inside a crystal box the size of an urn are stones the size of pigeon's eggs, which are constantly radiating scorching light, like small suns.

This is the goal of Li Yunfei's trip, Ghost Crystal and Flame Light Stone!

"Thor, are you still satisfied?" Dean Bohr coughed lightly on the side and said: "These ghost crystals and flame stones were originally intended to be used as prizes for this Brave King Conference, if you really need it, you can take out some first, and the things in the back compartments can be taken out of a total of four kinds, and these drawings you took out have exceeded the value of these materials." ”

Li Yunfei nodded, and just as he was about to express his satisfaction, the voice of the old man burning a pig sounded in his mind: "Don't agree yet! There is even a Netherstone here! You want a Flame Light Stone, take a Netherworld Stone! I want another thirty ghost crystals!"

Netherstone? Li Yunfei was stunned for a moment, and looked towards the last few compartments, and saw that in one of the compartments were several pieces of dragon skins cut into squares, each of which was one square meter in size, and there were four colors: blue, gold, black, and red, and in one compartment, there were some rare crystals, and in the last compartment, there were a bunch of various scrolls.

Where is there any Nether Stone?

"Not here, go to the place we passed by just now!" Lao Yan's voice was fiery, as if he was afraid that the Netherstone would disappear, "I didn't even notice it just now, tsk, there is a black stone in the corner of the wall, pick it up." ”

After Li Yunfei walked over, he looked down at the pile of small stones, and immediately found the round black stone.

Seeing that Li Yunfei was interested in this pile of leftovers that were still on the wall, Bohr immediately said: "These things are debris falling off the magic crystal ore, because there are not many, so they are piled up here, why is Thor still interested in this thing?"

Li Yunfei smiled slightly, grabbed a handful of stones on the ground, and quietly put them into the space ring together with the black stones, and said, "I haven't seen the crumbs of sunglasses ore, but it's pretty good, take it back and study it casually." ”

Bohr and Dirac both thought that Li Yunfei was just a teenager and didn't say anything, after all, it was just a pile of useless stones, and the two continued to wait for Li Yunfei's choice.

Then Li Yunfei, under the guidance of Lao Yan, took a flame stone, dozens of ghost crystals, and two ores that he couldn't name, and then left the secret vault.

As can be seen from the painful appearance of Bohr and Dirac, the last two ores are also extremely rare materials.

However, these things were exchanged for the improvement drawings of the magic guide cannon, and also included some ideas for the magic energy pillar, and the contribution to the entire Lionheart Imperial City was extremely huge, and he could be said to be well-deserved.

When Li Yunfei finished selecting the materials and left the secret vault, Bohr and Dirac breathed a sigh of relief, and they also left the secret vault and closed all the heavy metal doors.

In addition to the Lionheart Emperor's Treasure Vault, there is also the Lionheart Pope's Temple Secret Court, and the secret vault of the Alchemy Research Institute can be said to be the biggest treasure. Moreover, when it comes to the storage of ordinary materials such as Mithril and Magic Crystals, the Lionheart Treasury and the Temple Secret Court are not even half the size of the Vault.

From the time the door opened, both of them were highly nervous, and now that the vault was sealed again, they breathed a sigh of relief.

After Li Yunfei obtained items such as the Flame Stone and the Ghost Crystal in the secret vault, he followed Bohr and the others back to the hall of the Alchemy Research Institute.

It was already late at night, and the Alchemy Institute had prepared a banquet to welcome Honorary Vice President Saul Lee.

After the turmoil during the day, Li Yunfei and most of the grandmasters of the Alchemy Research Institute can be said to be familiar with each other, and after letting go of the estrangement in his heart, he drank and talked with a group of old men, which was very happy.

You must know that these alchemists can all be said to be equivalent to the scientists of the Giant God Continent, and they are the most logical thinking group of people in the entire Giant God Continent. Li Yunfei hadn't met this kind of person for a long time, and he had a feeling of returning to his previous life in a trance.

After some noise, at midnight, everyone was drunk, and Li Yunfei was also so drunk that he couldn't even walk a little unsteadily, so he said goodbye to Bohr and others, and was put into a carriage by the gods and slaves and left the Alchemy Research Institute.

As soon as the carriage started, a trace of essence flashed in Li Yunfei's eyes, the original drunken state disappeared in an instant, and the alcohol in his body was completely dissipated by his Burning Sky Fighting Flame.

At this time, his eyes were like electricity, sitting in the carriage like a sculpture, where was there still a trace of drunkenness!

Everything he has experienced since coming to Lionheart Imperial City can be said to have overwhelmed him, and he doesn't even have time to sort out his thoughts, and now he can take advantage of this time to sort out his gains and losses.

Conquering the Lionheart tribe can be said to be a gain, but having an estrangement from the Lionheart Emperor can be said to be a loss. After suppressing the divine thoughts of the father and obtaining sixteen divine slaves, it is still impossible to judge what the impact will be. And becoming the honorary vice president of the Alchemy Research Institute, getting the ghost crystal and the flame stone and the Netherstone is a really good thing.

The purpose of this trip to the Lionheart Imperial City has been reached, and it can be said that he can now leave the Lionheart Imperial City without participating in the Brave King Competition.

It stands to reason that he suppressed the divine thoughts of the father, this thing is like a time bomb, and he should leave quickly, but Li Yunfei vaguely felt that there seemed to be a huge secret in this Lionheart Imperial City, and this secret was related to human beings, and only by staying here could this secret be revealed.

After thinking for a moment, he decided that he still wanted to participate in the Brave King Competition, no matter what, there was no good excuse for leaving suddenly now, which was easy to arouse the suspicion of Lionheart and the Lionheart Pope.

Thinking of this, he casually took out a drawing from the spatial ring.

On this drawing, a huge trumpet-shaped structure is drawn, which is the design drawing of Xue Li's "sound cannon". This thing was quietly stuffed to him by Xue Li when he was drinking just now, saying that it was to express his apology, but it made Li Yunfei's heart warm.

These alchemists of the Alchemy Research Institute can be said to be the rare innocent people he has encountered. When alchemy was mentioned, most of the alchemy grandmasters' faces showed a look of obsession and fanaticism, which made Li Yunfei feel very good.

Moreover, the Alchemy Research Institute is also an indispensable place for his future plans......

At this moment, the carriage suddenly stopped, and it was already in front of a brightly lit villa.

Shan Shi and the other eight divine slaves immediately knelt on the ground in turn, forming a step-by-step downward staircase in front of the carriage, allowing Li Yunfei to step on the carriage.

Li Yunfei frowned, and was about to refuse, but when he saw the fanatical expressions on the faces of Shanshi and the others, he couldn't help but sigh and walked down on the backs of the eight swordsman gods.

This huge mansion was given to him by Pope Lionheart.

In other words, this should have been given to God by the Lionheart Pope, but now it is all cheaper Li Yunfei.

Entering the villa, Li Yunfei found that this villa was extremely luxurious, and the Lingyun Palace of Lingyun King Crewd was like a broken thatched hut compared to this villa.

The exterior of the villa is covered with layers of glazed tiles, and the walls inside are covered with gold leaf, and religious murals are engraved on the gold leaf, which is like a small shrine. With all sorts of extravagant furnishings, it's like a treasure trove.

At the same time, there is even a hot spring in this villa!

Li Yunfei didn't care much about other things, and after seeing this hot spring, he didn't hesitate at all, took off the clothes on his body, and jumped in directly.

The moment he entered the hot spring, he only felt that his whole body was comfortable, and even some of the injuries he suffered today began to heal slowly.

This spring water even has healing properties, and it is comparable to the moonlight holy water!

Generous, the Pope is really generous, and this hot spring alone is a complete treasure!

But think about it, for the Pope, the object of his service may be God the Father, his true God, how can he not do his best.

Just when Li Yunfei was soaking in the spring water and thinking, he only heard a few soft sounds of "rustling", followed by a slight sound of water, and when he looked up, the eight goddess slaves led by the crescent moon had already taken off the thin veils on their bodies and entered the hot spring with a shy face, like an eight-tailed mermaid, swimming towards Li Yunfei!