Teleported to Yuzhi Cave, Liu Fei'er cast a spell and opened a white jade gate on the cave wall.

She walked in, it was a small room, there were some magic weapons on the jade shelf against the wall, and Liu Fei'er picked up a golden long sword and looked at it carefully.

It was the Golden Rainbow Sword she was used to before.

Apprentice Xiao Yunxian doesn't have much talent in swordsmanship, I'm afraid he won't need it, put down the sword, Liu Fei'er picked up a storage bracelet from the shelf.

There are also some storage bracelets and Qiankun bags on the jade shelf, which are treasures that Chen Jing and Liu Fei'er brought back from Juxing Mountain and are not commonly used.

With a flash of brilliance, a large piece of golden metal appeared in mid-air.

The golden lump was the size of most of a table, like a natural piece of dog's head gold, but the golden light was even more brilliant.

It was the Dusk Shine Gold, a treasure that Chen Jing had obtained from the treasure house of the gray beetle in the Dusk World.

As soon as the big golden bump appeared, Liu Fei'er felt the gourd in her hand leap and send out a strong desire.

Sure enough, Dusk Shine Gold is useful for the Vajra Gourd, and it may be able to make the Gourd evolve!

"Don't rush!"

Liu Fei'er said that Dusk Yaojin can strengthen the flying sword, and the effect is worse than Yaojin, but it is still very precious.

Previously, Chen Jing and Wan Chongshan took some for experiments, strengthened the Silver Scale Water Splitting Sword, and later strengthened the Cloud Tribulation and Purple Electric Second Sword, and only used a small part.

According to the senior brother, the Dusk Yaojin is very precious, and it should be used on the natal magic weapon, or the Yuanying-level magic weapon, and it is a bit of a waste to strengthen the general Jiedan-level magic weapon.

This large piece of metal can be regarded as a priceless treasure, although she likes the vajra gourd very much, but if she gives it all to the gourd, even if the gourd is advanced, the price will be too great.

Liu Fei'er tried to communicate with the gourd, but although this natural magic weapon was full of spirituality, she didn't know how much metal was needed, that is, she wanted to think very much!

This is not a good decision, Liu Fei'er waved her hand to put away the dusk Yaojin, and walked out of the treasure house.

Chen Jing's fog gourd has evolved, so let's discuss it with my senior brother.

All the way out of the Xuanfeng Palace, Liu Fei'er sensed slightly on the top of Lingyan Mountain, then turned into a blue light, returned to the cave, and flew up the pavilion.

"Senior brother, the Vajra gourd can evolve!" She couldn't wait to announce.

"What?!"

Chen Jing was startled and sat up.

The chestnut is calm, Liu Fei'er and Chen Jing are usually elusive, and the tortoise has long been used to it.

"The gourd wants to eat this ......" Liu Fei'er waved her hand, and a piece of golden metal appeared in mid-air.

The chestnut was attracted by the big golden bump, turned around, and couldn't take his eyes off it.

"Is that so......"

Chen Jing understood, and sighed in his heart, his junior sister's intuition in this regard was really very keen.

Liu Fei'er found Yaojin's short sword on the stall, and after seeing the metal in front of her, she felt that it was very similar to Yaojin, and later found that it was indeed the case.

Now that the vajra gourd has only been refined, she has discovered the key to evolution.

Hulu recognizes her as the master, which is really right!

The two brothers and sisters discussed for a while, and Chen Jing suggested, "Let's take more materials and try them." ”

He felt that Dusk Yaojin was to strengthen the flying sword, and the Vajra gourd was a defensive magic weapon, and it might not be appropriate to absorb this.

"Good!"

Chen Jing's words aroused Liu Fei'er's interest.

The two went to the Xuanfeng Palace and went to the treasure house to take out various materials for testing.

"Hey, Hulu wants this too."

"Well, try the Essence Earth Demon Gold again."

After some testing, the brother and sister found that the King Kong gourd only needs metal materials.

It is the same metal, a small part of the material is okay, and most of them are not, and the two of them have no way to judge the law for the time being.

Among the metals needed for hoists, there is a strong demand for a few, and most of them are dispensable.

These few materials that are in high demand obviously have the greatest effect on the evolution of the gourd.

"Which metal do you think is good? Or wait until you find a better one later? ”

Chen Jing asked Liu Fei'er.

Among these metals, the amount of Dusk Shine Gold is the largest, and there are not so many others, which may not be able to meet the needs of gourd evolution.

Chen Jing still felt that the Dusk Shine Gold that strengthened the flying sword might not be suitable for the Vajra gourd.

You can also wait until you find other more suitable metals before you can make the gourd advanced.

"Just use the dusk to shine gold!"

Liu Fei'er can sense that the demand for this metal is the strongest in King Kong gourd.

She felt the same way, and the first thing that came to mind was basically the best.

Seeing that Liu Fei'er was very determined, Chen Jing thought to himself, this kind of thing is mysterious and mysterious, and the general truth does not make sense, he thinks it is inappropriate, it may not be true.

The junior sister and the King Kong gourd are very compatible, since she is so sure, there must be a reason for it.

Then it was decided, such a large piece of metal can always make the gourd advanced, Chen Jing clapped and said:

"Well, that's it!"

Although it was decided, it couldn't just give this large piece of dusk gold directly to the gourd.

In the Yuzhi Cave, the blue light flashed, and Liu Fei'er sacrificed the Tianxin Sword and cut off a piece from the big golden pimple.

This piece of metal was the size of a fist, enough to strengthen several Jiedan-level flying swords.

Don't know how to eat a gourd?

The brother and sister were very curious, and Liu Fei'er brought the metal close to the King Kong gourd.

"Huh?"

"I see."

I saw the brilliant golden light on the metal block suddenly shake, attracted by the invisible power, and finally floated out a wisp and flew into the gourd.

The faint stream of light continued like wisps, and the golden light on the metal block slowly dimmed.

In the end, it seemed that all the golden light was absorbed by the gourd, and the originally golden dusk dazzling gold seemed to have turned into an ordinary piece of gold.

"It's not enough." Liu Fei'er said.

"Then go ahead and see how much gourd you can eat." Chen Jing said with a smile.

In this way, Liu Fei'er cut off pieces of Dusk Bright Gold and fed them to the King Kong gourd.

As the golden light absorbed gradually increased, there seemed to be light shooting out of the gourd.

Finally, after absorbing a small half of the Dusk Shine Gold, the Vajra gourd was finally full.

The golden flame on the gourd rushed into the sky, almost turning into a gourd condensed by golden light.

Liu Fei'er and Chen Jing both showed joy.

The white jade cave was filled with golden light, and everything seemed to have turned into gold, including the two of them.

"There's quite a bit left."

Liu Fei'er looked at the big golden bump that was missing a small half, and was relieved.

"Well, it's good, these are kind of ordinary gold, maybe they still work."

Chen Jing put away the metal that had been sucked up and prepared to study it when he had time.

Liu Fei'er held up the gourd and looked closely, it had fallen into a deep sleep and began to evolve.

When the evolution of the vajra gourd is completed, it is likely that it will need to survive the thunder tribulation, and it will become a magic weapon of the Yuan Infant level after it passes.

However, this thunder tribulation is very dangerous, far from being comparable to the time when refining the weapon a few days ago.

"The vajra gourd is a magic weapon for defense, it's easier to cross the thunder tribulation than the fog gourd, right?"

Liu Fei'er is very confident in this.

Chen Jingdao: "It should be, let's think about it, what preparations should be made." ”