There is nothing in this entire spiritual treasure house that can be directly used by the three of them now.

But in terms of amazingly valuable meteorites and mineral crystals, there are indeed many.

Either choose the rarest and most expensive ones, even if you can’t use them yourself, you may be able to exchange them for the same things after you go out, just like Xiao Suxin exchanged the Huangya Pill for the sponsorship book of the Nantianyuan.

Or you choose something that should be of great use in future practice.

"What Qi Zhuji should have in his family is money. Moreover, even the most precious things are used for exchange, it is unknown whether they can exchange them for what they need. It is better to take things that will definitely be useful in the future."

Lin Yi weighed the pros and cons, and finally took out a Tongshen Stone.

This Tongshen Stone is also a unique meteorite, which is used inlaid on the flying sword in the world of practitioners.

Like many special golds that refine flying swords and swords, this crystal is easier to be perceived by practitioners and more easily accept the true essence of practitioners.

The reason why Tongshen Stone cannot be used directly to refine sword fetuses is that it is too hard to cut at all, and cannot be mixed with metal and iron to melt or forge.

The larger the Tongshen Stone, the stronger the effect.

According to a note that Lin Yi has read, the largest Tongshen stone has been found so far the size of a baby's fist, but the rest are only the size of rice grains and soybeans. Now this Tongshen stone in Nantianyuan is as big as the size of a broad bean, which is amazing.

If such a magical stone is embedded in a flying sword like the Tongtian sword in Xiao Suxin's hand, it will immediately double the power of this flying sword.

If the flying sword controlled by a cultivator had an extreme distance of 100 steps, and with a magical stone of this size inlaid, it would probably be able to kill at least 200 steps.

"senior."

Lin Yi chose these three things and grabbed them all in his hands. When he arrived outside the warehouse, the old man half-squinted his eyes, looking as if he was about to wake up.

Lin Yi had spread these three things in front of the old man. Before he could say more, the old man was reluctant to say anything, so he waved his hand and asked Lin Yi to leave.

"this…?"

Lin Yi was stunned.

He raised his hands, and the pile of adsorbed debris on his wrist was still trying to say something, but the old man seemed to not care at all.

But he was not a pedantic person either. He didn't say anything nonsense at the moment and turned around and left.

What he didn't know was that when his figure disappeared before the spiritual treasure house, Guan Qianhuang's figure appeared in front of the spiritual treasure house.

Guan Qianhuang came to the old man, nodded as a greeting, then turned around and looked at the direction where Lin Yi left, smiled faintly, and said, "Not bad?"

The old man opened his eyes slightly and said, "Very good."

"Very good?" Guan Qianhuang was also a little surprised, and did not expect Lin Yi to receive such an evaluation.

"What else is more evident than entering the treasure house?" the old man said vaguely: "What's more, it's natural that it's good to have such strength when you first enter the yellow bud."

...

"What's so heavy?"

Lin Yi thought that since the library could be entered at any time, he was not in a hurry. He went back to Huangteng Jingshu first, tied a thick cloth to his left finger, and took off the debris from his right wrist one by one.

When he found that the debris removed was not heavy, he let go, and the debris naturally absorbed onto his left bracelet.

But after taking more than ten pieces of debris in a row, his entire left arm was extremely sore and swollen, especially his five fingers in his left hand were even more swelling and shaking.

After resting for a while, Lin Yi took it again when the sore feeling disappeared.

This time he only took the third one, and his entire left hand suddenly sank. His left finger couldn't hold it. With a tingling sound, he saw it clearly. It was a light blue chip like a sword tip but the size of a nail.

"Is this a meteorite?"

Lin Yi widened his eyes in surprise.

The surface and fracture of this translucent wafer are very smooth, but not absolutely flat. It is obvious that there are traces of natural collision and friction, or even burning and melting.

This is definitely a unique meteorite crystal, also called the Heavenly Fa Crystal in the Northern Wei Dynasty.

But in all the notes he saw before, he did not see any record of such meteorites.

Lin Yi tried to use this meteorite to draw the rocks on the ground.

The stone chips were flying, and the meteorite thorns cut ordinary rocks like iron tools piercing hard mud, which was extremely relaxed, but the sharp end of the meteorite was not damaged at all.

"this……"

For a moment, he felt a bit hot.

This meteorite crystal is so heavy and extremely hard. If it is in the hands of the master craftsman of the South Heaven Academy, it should be of great use. But for him, such a piece is known to be an extremely special thing, but he doesn't know how to use it.

In fact, it is to test the material properties of this meteorite. The craftsman should have many methods, but he can only try it so simply.

"This pair of bracelets is good, but sometimes it may be troublesome, so you have to prepare something to block the magnetic force."

Lin Yi recognized this meteorite, and at this moment he looked at the circle of debris on his wrists, but he was helpless.

The magnetic force of this pair of bracelets is too strong. If you go to the battlefield, you will probably be inconvenient. What's more, sometimes you can't hide your figure even if you hide it. If an enemy approaches, the things on the other party may be sucked in.

"Ask Wu and teach them if there is any solution. This meteorite crystal will also let her see where it can be used."

Lin Yi had no choice but to forcefully put the bracelet on his right wrist and put it in the house. The next step was like a finger-force practice. It took him a stick of incense to remove all the debris absorbed by the two bracelets and put them in a pottery jar.

The most unique meteorite crystal was wrapped up separately by him.

"Lin Yi!"

After he finished all this, he had just had a rest for a while. Before he decided to practice for a while, or to go directly to the Nantianyuan Library. Outside the bamboo forest, the shouts of Qi Zhuji and Xiao Suxin had already sounded.

"What's the matter?"

Lin Yi was stunned when he saw Qi Zhuji and Xiao Suxin coming.

Not to mention that the expressions on the faces of the two of them seemed to have a big problem. Just shouting from afar from outside the forest made him feel that something unusual happened today.

"After the sage arrives, we are about to set off."

"Teacher Wu was doing well in class, but someone from the Central Military Commission came and brought a sage to us, which immediately ordered us to leave the courtyard. The military had already prepared horses, and we only had one cup of tea to prepare."

Qi Zhuji and Xiao Suxin said one by one, their tone was anxious. Lin Yi understood it instantly and was shocked, "What does it mean? The South Heaven Courtyard is moving north immediately? Is it just our level or all levels left the hospital?"

"All leaving the hospital is just led by different teachers."

Qi Zhuji's face looked very ugly, "Even Teacher Wu was surprised. It seemed that according to the sage he received in the courtyard before, we would have left the courtyard for at least ten days."

"Is the battle situation on the front line already tight?"

Lin Yi took a deep breath and felt solemn.

"The changes are too hasty, and my family did not remind me in advance. I am afraid that even my family will not know anything happened." Qi Zhuji frowned deeply, and he did not hide it. "Lin Yi, what did you get?"

"I went to Danfang and Lingbao Hall, and the library had not had time to go." Lin Yi quickly said what he got, and couldn't help but frown.

I will leave the courtyard immediately. Not to mention that the library is too late to go, this pair of bracelets cannot be handled.

"Have you got so much?"

Qi Zhuji was relieved when he heard what Lin Yishu said.

What he was most worried about now was that they handed over the military to the distribution after leaving the hospital, but some of the military's mobilizations were secret military orders, and they might have lost contact with their homes by then.

"Now I'll just ask you to come back and pack your clothes. I don't even give you time to choose ordinary weapons?" Lin Yi frowned and continued to ask.

"It is said that there are rations along the way." Xiao Suxin said.

"Take this green dragon tendons for you first. If we are dispersed... If you have the chance to contact the bow and arrow, choose a bow and take more bows and arrows. Qi Zhuji, you can carry this refining stone with you. I don't have time to deal with these medicines now. If I get the chance, I will divide them into three parts and tell you how to use them." Lin Yi was a disciple of the general after all. Although today's change was abrupt, it was only one or two breaths, and he made a decision.

"good!"

Qi Zhuji and Xiao Suxin did not waste time, and the three of them went back to the monastery to pack their clothes.

It felt like a moment later, the sound of drums sounded in the entire Nantianyuan.

It was originally a dusk drum.
Chapter completed!