Yun Lan originally felt that she had nothing to prepare, but now because Yao Qiu was also going to enter the secret realm with her, she was not at ease.

There was nothing to do left and right, so Yunlan simply went into the mountains and seas to refine the elixir.

Yao Qiu has a weapon, and she had reserved a long sword for Yao Qiu when she was refining the long sword before, but it was so dangerous in the Shan Hai Jing, and the life-saving potions and pills were also indispensable.

The medicine of the Federation is very expensive, but fortunately, the medicine does not need her to worry about it, and Principal Shao will solve it by themselves.

She refined some pills to save her life at the critical moment.

But before refining the elixir, Bai Ze reminded, "Master, you might try to refine a storage bag first. ”

"Storage bags?" Yun Lan was stunned for two seconds, but he didn't ask what the storage bag was, after all, this thing is very easy to understand from the literal meaning.

She just didn't understand why she was refining storage bags.

"Isn't there a space button?" Although she doesn't have an empty button, she has a mountain and sea classic, and she can pretend to be a space button.

Bai Ze stopped talking, and looked at Yunlan speechlessly.

Yun Lan looked at its expression, blinked in consciousness, and then nodded, "You're right, I also think I should refine a storage bag first." ”

It's that she's stupid, she has the Book of Mountains and Seas and can pretend to be a space button, and Bai Ze doesn't know about it, but it knows it, but it still reminds her to refine a storage bag, which means that the secret realm is very likely to be incompatible with the Book of Mountains and Seas, and when she enters the secret realm, she may not be able to open the Book of Mountains and Seas.

"But how do you refine the storage bag? I still want to refine some pills, is it too late? Yunlan asked hesitantly.

The storage bag should be the same thing as the space button, and it needs to open up a separate folding space, which shouldn't be easy, right? Otherwise, why would the Federation's space button be so expensive?

"Of course, it's time, and storage bags aren't a particularly difficult thing." Bai Ze's tone was very contemptuous.

When touching the corpse, the baby is finished, and the storage bag is thrown directly on the corpse.

Yun Lan's eyes widened, is refining storage bags actually a very simple matter?

You must know that the space button with a function of the storage bag is in short supply in the Federation, and the price is sky-high.

The production technology of the Federation's space button has always been controlled by the Gu family of the Eight Great Families, and the history of the space button in the Federation is not long, and it is only a thousand years when it is full.

Before the appearance of the space button, there were only seven great families in the Federation, and after the appearance of the space button, the Federation had the eighth great family, the Gu family.

In the Federation, a cubic meter of space button can cost as much as 500,000 Star Coins, and the larger the space, the more expensive it is.

Moreover, the space button requires an extremely special ore refining, which is mostly controlled by the Gu family, and the price is extremely expensive.

I don't know if this ore will also be used in refining storage bags, if she needs it, she may not be able to afford or buy this ore.

Yun Lan's worries Bai Ze didn't know at all, time was pressing, Bai Ze didn't say anything, and directly took Yun Lan to a mountain with sparse vegetation.

The mountain was very low, and Yun Lan recalled the full text of the Classic of Mountains and Seas and found that it was an unknown hill that had not been recorded.

Just as she was about to ask Bai Ze what she was doing with her here, she heard Bai Ze say, "This mountain is rich in an ore called Space Stone, which can be used to refine storage bags. ”

Yun Lan was surprised, and picked up a silver-white stone at his feet, "You can't be talking about this stone, right?" ”

Bai Ze nodded.

Then Yunlan was speechless.

What she thought was rich needed to be excavated and mined, but what Bai Ze said was rich was actually everywhere in the mountains?

Yunlan: "You made me reacquaint myself with the word rich. ”

After speaking, Yun Lan re-observed the space stone in his hand, which was very similar to the ore used by the Federation to make the space button, but the color was more silvery, and the color of the ore used by the Federation to make the space button was whiter.

Yun Lan didn't know how many ores the Gu family needed to make a space button, but Bai Zejiao's method of refining a storage bag, refining a storage bag, only needed a space stone the size of a thumb was enough.

And the refining process is indeed extremely simple, Yun Lan, who failed to refine the sword several times at the beginning, succeeded in refining the storage bag this time.

And the storage bag she refined is also very large, with ten cubic meters!

You must know that the existing space button of the Federation, the largest is only twenty cubes!

Looking at the space stones all over the mountains, Yunlan was a little dizzy.

Oh my God, with so many space stones, how many storage bags can she refine!

Because the storage bag is really simple to refine, and it doesn't take time, Yun Lan didn't keep it for a while, so he simply refined more than a dozen, and prepared to take it out and give it to Yao Qiu and Uncle Luo when the time came.

When she comes out of the secret realm, she wants to refine a storage bag for all the uncles and aunts of Azure Star.

In this way, she Blue Star can have a storage bag in her hands.

After the storage bag was refined, Yunlan finally began to work on alchemy.

Alchemy is much more difficult than refining storage bags, and Bai Ze is probably afraid that she will encounter some fatal danger in the secret realm, so he chooses a life-saving pill and a healing pill with a high difficulty coefficient for her to refine.

Yun Lan refined the elixir for ten days day and night, and many spirit plants in the Classic of Mountains and Seas were almost bald by her, but in the end, she only succeeded in refining twelve pills.

Yes, only twelve pills were refined in ten days, not to mention Bai Ze, which is inefficient, Yun Lan himself didn't even see it.

And they are all first-order low-grade pills, and none of them are medium-grade or high-grade.

Yun Lan was very skeptical about the effect of these pills he had refined, but Bai Ze was very concerned: "It's okay, the first-order lower grade pills are enough for your cultivation, master." ”

Yunlan: "······"

For a while, I didn't know whether to be glad that the pill was available, or to be ashamed that my cultivation was too low.

The pill, of course, the more the better, Yun Lan really wants to take advantage of the fact that the secret realm has not yet opened, and refine more, but if she wants to come to the secret realm to open in the past two days, it is not a matter for her to stay in the Classic of Mountains and Seas, although she doesn't need to be busy with anything, but some arrangements will probably fall on her head.

Sure enough, as soon as she came out of the Classic of Mountains and Seas, Principal Shao's video called and asked her to go to Principal Shao's office for a small meeting.

Yunlan went only to find that he was the last to arrive, and the office was already full of people.

It's still those people who were in the Qi family last time, but there is an extra teacher Anwen.

In fact, this meeting did not say anything, but exchanged some detailed arrangements with each other, so as not to have conflicts or omissions at that time.

The First Military Academy of the Federation finally selected a hundred students to enter the secret realm, of which only a dozen or so were freshmen, and the sophomores were even fewer than the freshmen, only seven or eight, and the rest were mostly juniors and seniors.

Among the dozen or so freshmen, Fu Rui accounted for eight.