For Yan Wubian, he had to first know the origin of the red spar that was obtained from Kunpeng Immortal Island and caused the red dragon tooth to move, and he also had to figure out how to upgrade the red dragon tooth.

In addition, there is also the effect of the half-cut candle, and there are a lot of elixirs in his spirit pet space, whose names and medicinal effects are unknown.

These all need to be understood by him one by one, and the Lu family's Jing Pavilion is undoubtedly the best choice.

Regarding Yan Wubian's request, the Lu family patriarch was stunned for a moment, and then immediately thought of the former's identity as a Flying Ascension Spirit Master, and indeed needed some information to increase his understanding of the immortal spirit world.

Therefore, I did not hesitate and agreed directly.

At this time, before coming to the gate of the Jing Pavilion, looking at the copper gate full of mysterious patterns, Yan Wubian's wrist flipped, and a rectangular purple gold token appeared.

The spiritual power in his hand surged, and suddenly, the purple gold token emitted bursts of light, and then a purple pillar of light shot out from the token, and disappeared into the copper gate in a flash.

"Boom!"

Immediately, the heavy copper gate let out a dull roar and slowly opened.

Yan Wubian didn't hesitate, took a few steps, and then entered the Jing Pavilion, and then, the copper gate behind him closed again.

At this time, what appeared in front of Yan Wubian's eyes was a huge screen, and in front of the screen, there was a set of simple tables and chairs, and a cyan figure was lying on the table, as if he was sleeping.

As if sensing Yan Wubian's arrival, the person lying on the table immediately raised his head, revealing an old face, and after staring at Yan Wubian who was looking at him with cloudy eyes, he spoke up directly and said:

"Tokens!"

Although this old man in Tsing Yi did not have the slightest breath in his body, Yan Wubian did not dare to have the slightest contempt, how could a person who could appear in such a place be an ordinary person.

Immediately, without any delay, he came to the table, put the token in his hand on the table, and took two or three steps back before he stopped and looked at the old man in Tsing Yi.

He didn't reach for the purple token on the table, but after glancing at it, the old man spoke again:

"Alright, you can go in. ”

As his voice fell, the token also strangely and suddenly flew up from the table, slowly flying towards Yan Wubian.

Seeing this scene, Yan Wubian hurriedly put away the token.

"Thank you, senior!"

After saluting the old man in Tsing Yi, Yan Wubian immediately walked to the left, and after bypassing the huge screen, a huge hall appeared in front of his eyes.

In the hall, rows of bookshelves appeared in Yan's boundless sight, and each bookshelf was neatly filled with books, scrolls, jade slips, and even a lot of animal skins, stone skins and other objects that recorded things.

"So much!"

Looking at the hall full of the smell of paper, Yan Wubian's eyes couldn't help but reveal a look of horror.

In the past, he found that there were at least 100,000 books on this floor, not including the small number of scrolls, jade slips and other things. The amount was a bit of a surprise to him.

Without any delay, he casually took out an ancient book on the shelf closest to him, and flipped it through it twice, Yan Wubian re-covered it and put it back in its place.

Although this book is an ancient book, it is only an ancient book that records the customs and customs, and naturally it is not of much use to him, and it is certainly impossible for him to waste time on it.

Next, Yan Wubian looked through them one by one. However, to his disappointment, the contents of the ancient books on this bookshelf are almost all the same. didn't stay on the edge of this bookshelf for too long, Yan Wubian immediately changed to a bookshelf.

The books on these shelves had obviously been divided into categories, and as Yan Wubian looked over one by one, he soon came to a bookshelf that recorded something related to refining.

Although the content in it was only the most basic things, Yan Wubian was still happy in his heart, and then carefully examined it.

The method of basic refining, the method of material purification, and the introduction of refining materials ......!

As time passed, after inspecting the information about the refining weapon, Yan Wubian found the elixir, prohibition and other related books and ......!

......

Inside the cave mansion, Yan Wubian's eyes were closed and suddenly opened, and a fine light flashed away, at this time, ten days had passed since he was in the Lu Family Jing Pavilion.

A flash of inspiration flashed in his hand, and a red spar appeared in the palm of his hand.

"Ryukyan Divine Crystal!"

muttered to himself, and Yan Wubian's face couldn't help but show a slight joy.

This spar that caused the red dragon's anomaly was a top-level refining material, rare in the world. It's a pity that although he knows his name, Yan Wubian still doesn't know anything about his specific role.

This is because he only saw the record of this thing in an ancient book in the Lu Family Pavilion, but the record was only a short sentence or two, in addition to its appearance and name, it also explained its function, which made Yan Wubian extremely depressed.

In addition, he didn't find a way to improve the red dragon teeth, not to mention that the ancient books he read were not recorded, but later, he specifically asked the refiners of the Lu family, and the spirit masters in Ningding City who helped people refine weapons, and no one had heard of the method of upgrading the spirit soldiers and spirit treasures that had been formed.

Yan Wubian knew very well that it was not that there was no way, but the refiners he asked also did not know.

At this time, Yan Wubian's face was cloudy, as if he was thinking about something that was difficult to decide.

After a while, his eyes swept over the hedron in his hand, and he finally made up his mind to try to improve the grade of the Red Dragon Tooth himself.

After recalling the information he had obtained for refining the first-grade spirit treasure one by one, Yan Wubian no longer hesitated, and a slight fluctuation of spiritual power rippled in his hand.

The red spar immediately floated up, suspended not far in front of him, Yan Wubian didn't blink, and a blue flame suddenly erupted from his mouth.

With a soft "bang", the blue heavenly spirit fire hit the red spar, enveloping it in an instant, and a scorching height emanated from it.

Yan Wubian's heart moved slightly, as if sensing that the former was listening to his thoughts, and the high temperature emitted by the Heavenly Spirit Fire converged, and the spar wrapped in it began to gradually dissolve.

Seeing this scene, Yan Wubian's face also began to become solemn, staring at the thing in front of him without blinking.

After more than half an hour, this spar completely turned into a puddle of red liquid, and was suspended in mid-air under the wrapping of Yan's boundless spiritual power.

Looking at the liquid in front of him, Yan Wubian's face showed a look of hesitation, and then quickly disappeared again, and then, with a wave of his hand, the red dragon tooth flew out, suspended on the edge of the red liquid.