Xu Xin made some more steel and gave it to Li Wenxi. At the same time, he also gave Li Wenxi some coal.

According to his observation just now, a piece of coal (green) can keep the furnace burning for an hour, which is shorter than the burning time of a piece of green grade wood.

But coal is easy to obtain. You don’t know how long it will take to mine that pile of coal, and you can get more than ten or twenty yuan with just one pickaxe. Compared with a green-level tree, which only yields five pieces of wood, it really takes a lot of money.

Much easier to obtain.

Most importantly, coal increases furnace efficiency.

"This is coal!" Li Wenxi was also surprised, "It can actually improve the efficiency of the furnace! Have you found a coal mine?"

"Well, it's right near my tree house, buried five or six meters underground."

"It turns out it was buried underground. I said I have never been able to find the coal mine... You have found everything underground!" Li Wenxi blinked, "Could it be that your alchemy ability helped you find it?"

"It should be similar to your ore-finding ability." Xu Xin raised the corner of her mouth and said.

"...Hey, I'm going to help you practice steel!"

After hanging up the video, Xu Xin came to the art room and sat in front of the sculpture and painting workbench.

At his current speed, he can produce a small carving in fifteen minutes and 40 points of decoration in an hour.

After eating an orange to keep his mental power at its peak, Xu Xin picked up the carving knife and immediately entered the state.

Soon, the first carving, the small carving promised to Li Wenxi, was made. This time he carved a little beauty standing with hands on her hips. The proportions of head, body and legs were perfectly restored, and even the figure was perfectly restored.

.

The beep reminded him that he had added ten points of decoration. Xu Xin put the small carving aside, took out another green-level crystal, and continued carving.

Immersed in the carving, Xu Xin could not feel the passage of time. Soon, small carvings were created from his hands. The images of the small carvings were all animals, blood-striped rabbits, blood-striped cats, and blood-striped cats.

Sailfish, these are the three intermediate mutant beasts he has killed.

Until the fourth carving, the carving of the blood-striped swordfish emerging from the water was completed, Xu Xin breathed a sigh of relief, put down the carving knife, and leaned on the back of the chair. He looked at the time, there were four carvings, no more, no less, exactly one

Hour.

It's really good, one hour, 40 points of decoration.

However, this time the prompt tone has changed.

[It is detected that the mutated swordfish red crystal carving (green) is placed in the tree house, the tree house decoration degree is 10, the current tree house decoration degree: 319.68 (266.453.28)]

[The number of crystal carvings (green) in the tree house has reached the upper limit, and further increase will not increase the decoration level. 】

...Sure enough, there is an upper limit on the number of crystal carvings of the same level, but the upper limit is much higher than that of basic materials that have not been processed.

Art also has its upper limit.

Xu Xin calculated. Before today, he carved a statue for Coco, Mimi, Afu, Silver King, Aifei, and the two little guys. A total of six green-level small sculptures. Now he has

Inside are the carvings that will be given to Li Wenxi and the carvings of three intermediate mutant beasts.

In total, there are ten.

The upper limit of the number of crystal carvings (green) is ten. Each crystal carving (green) can increase the decoration level by 10 points. Ten is 100 points. Coupled with the 20% increase in decoration level rewarded in the last event, these crystal carvings (green)

, bringing him a total of 120 points of decoration.

After all, the unprocessed green-level crystal can only add 6 points of decoration. His unprocessed purple-level crystal can only add 5 points of decoration.

However, Xu Xin is still a little disappointed. He actually hopes that the decoration can be infinitely increased. Now it seems that other materials and methods should be used to increase the decoration.

There is no need to worry for now, he can also use mahogany paper for painting to increase the decoration, and mahogany is also one of the carving materials.

Taking out another green-level crystal, Xu Xin started carving again. After all, one of these statues was going to be given to Li Wenxi, so he naturally wanted to make up for it.

The carving is completed, it is a small carving of a wild boar. As expected, there is no hint of increased decoration this time.

Xu Xin put the statue on the bookcase and was about to contact Li Wenxi to inquire about the refining of the steel block. Suddenly, a notification sounded in his ear.

[Sculpture proficiency is achieved, and the artist level is upgraded to entry level.]

...The artist level has been improved?

Xu Xin immediately clicked on the [Artist] option and found that the line of small print about the level had changed.

Artist level: Advanced level.

The artist level has reached the next level and advanced!

The prompt said that he was promoted because of his proficiency in carving. Xu Xin calculated, and adding the two carvings given to Li Wenxi, he made a total of twelve small carvings, and finally he was promoted to the entry level.

His own level is indeed entry-level, but with the blessing of Deep Sea Pearl (Blue), the artist level has been improved and reached the advanced level!

Can advanced artists handle blue-level crystals?

Xu Xin immediately took out a piece of blue crystal. Compared with the green crystal, the blue crystal is much larger. The green crystal is only the size of an egg, but the blue crystal is as big as a fist.

There are still a few marks on this blue-level crystal from the last time he carved it. That time he only carved a few cuts and then couldn't cut it anymore.

When Xu Xin mentioned the carving knife, that immersive feeling reappeared, making him overjoyed.

As expected, he could already handle blue-level crystals and make blue-level carvings! This made him feel a little disappointed after learning that crystal carving had an upper limit, and he immediately became immersed in carving.

He didn't know how long it took, but the vibration of his watch woke him up from his state. It was Li Wenxi who sent a video call.

Although he felt like he was carving smoothly and with the help of a god when he struck the knife, the degree of completion of his blue-level carving was very low at this time, not even 10%.

Looking at the time, Xu Xin frowned.

An hour has passed since he started carving this blue-level crystal!

This...can't even complete 10% in one hour?!

This blue-level carving is really time-consuming! Look at it this way, if you want to complete a blue-level carving, even if you don’t do anything, it will take a whole day!

...It's such a waste of time. For now, let's use other methods to improve the decoration level. After all, he can make many green-level artworks in an hour.

Green-level painting and green-level mahogany carving can both improve the decoration level. After upgrading to the advanced level, his artistic creation speed should be faster.

Let’s fill up all these first, reach the upper limit, add some increase points to the art room, and then think about higher blue-level crystal statues.

The watch was still ringing, and Xu Xin connected the video.

"What are you doing? You haven't answered the question for so long." Li Wenxi asked with some confusion, holding a piece of metal with a bright silver metallic luster in her hand.

"I'm carving it for you," Xu Xin raised the little beauty carving in her hand and teased, "You almost made me waste all my efforts and almost broke your leg."

"Ah? Oops, then... it's not broken, right?" Li Wenxi's voice suddenly became much softer, and she asked cautiously with an "I was wrong" expression on her face.

"I lied to you, it's okay, it's perfect." Xu Xin threw the statue in his hand.

Li Wenxi's eyes widened and she quickly stopped her: "Hey, don't throw it away! What if it breaks? That's 'me'!"

Xu Xin took the statue and stood it on the table. He had already seen the steel block in Li Wenxi's hand. The steel block was emitting blue light, and it was obviously a blue-grade steel block.

"How is the refining of the steel blocks? Is it fast?" Xu Xin asked Li Wenxi while initiating the transaction.

Li Wenxi also directly accepted the deal, holding the statue in his hand and looking at it with admiration.

"Quick, a lot has been refined. Well, wait a moment while I put the statue in place first!"

She got up and walked to another room, carefully placing the statue on a shelf. The shelf also contained the one Xu Xin had given her before, with a sculpture of her lying on the sofa.

After finishing this, she sat back on the sofa and picked up the silver-white steel block that she had just placed on the wooden coffee table.

"That's it, the steel block! I have refined some of the green-level and blue-level steel blocks. The refining time of this steel block is also related to the level. The time for refining the green-level steel block is much shorter than the blue-level steel block. Hmm...

...The green level only takes tens of seconds to refine one piece, while the blue level takes fifteen minutes to refine."

Sure enough, professionals should be allowed to do professional things.

It takes Xu Xin 50 minutes to refine a blue-grade steel block by himself, but Li Wenxi can do it in 15 minutes.

And she also has many furnaces. With the addition of the increase in the smelting room, even if there are many furnaces, it can ensure that the indoor temperature will not be too high and will not cause a fire. You can also enter the smelting room to control the furnace without cooling.

This directly doubled the refining speed several times.

"Moreover, a bottle of steel fire can continuously refine five green-grade steel blocks, but it can only refine one blue-grade steel block. By the way, does your steel fire consume a lot of materials?"

A portion of Steel Fire only requires one kilogram of mutated vine juice and 25 coals, which is not a lot.

Coal is currently inexhaustible. Even if Ai Fei digs more than a thousand pieces of coal, the coal mine seems to have remained unchanged.

Even if the mutant vine juice is exhausted, with his current strength, he can jump repeatedly to the edge of the protected area to attract the vines to drill out, then kill them and collect the juice.

"It's not very material intensive. Give me the steel block first and I'll see what I can make."

"good."

Li Wenxi also sent him all the steel blocks.

"...So rich?" Looking at the materials in his hand, Xu Xin felt a little numb.

Xu Xin gave her a total of twenty shares of steel fire, and she also returned him twenty-eight shares of steel blocks.

Among them, only ten are green-grade steel blocks, and the remaining eighteen are blue-grade steel blocks!
Chapter completed!